My research group is currently working in the following areas:
Designer heterocycle-containing and diphenylamine-containing ligands (including macrocycles) and coordination complexes: design, synthesis, crystal structure determinations, redox and magnetic properties.
Green catalysts for (a) generation of green hydrogen (C-zero fuel) from water and for (b) reduction of carbon dioxide to C-neutral fuels and commodity chemicals. Both are being studied under electrocatalytic (in collaboration with Associate Professor Aaron Marshall, Canterbury) and photocatalytic (solar fuels, in collaboration with Professor Garry Hanan, Montreal) conditions.
Spin crossover complexes – towards nanoswitches and memory devices. We measure magnetic data in house (and Mössbauer spectroscopy 4.6-300 K via in-house collaboration with Dr Guy Jameson).
Single Molecule Magnets (SMMs): one-pot self-assembly of soluble stable 3d-4f tetrametallic SMMs, by formation of a large organic Schiff-base macrocyclic ligands with differing coordination pockets, N2O2 for 3d and central O6 for 4f, and differing ring sizes (in collaboration with Prof Annie Powell, KIT; detailed magnetic studies with Dr Rodolphe Clerac, Bordeaux).
Immobilisation by attachment of magnetically or catalytically interesting complexes to nanoparticles (in-house collaboration with Associate Professor Carla Meledandri) or to other surfaces (in collaboration with Associate Professor Aaron Marshall, Canterbury).
Green polymerisation catalysts for (i) controlled polymerisation of rac-lactide (from biomass, not oil building blocks), and (ii) co-polymersiation of CO2 with epoxide (in collaboration with Professor Charlotte Williams, Imperial College London).
Self-assembly of communicating arrays of transition metal ions – grids vs side-by-side complexes.
Functional models of the Mn4Ca cluster, the oxygen evolving complex (OEC), otherwise known as the water oxidation catalyst (WOC) of green plants (2H2O = O2 + 4H+ + 4e-).
Lanthanide cages as a new generation of luminescent 'probes'.
Publications
Sundaresan, S., & Brooker, S. (2023). Solution spin crossover versus speciation effects: A cautionary tale. Inorganic Chemistry, 62, 12192-12202. doi: 10.1021/acs.inorgchem.3c00186
Journal - Research Article
Robb, M. G., & Brooker, S. (2023). Incorporation of switchable inorganic building blocks into heterometallic coordination polymers. Crystal Growth & Design. Advance online publication. doi: 10.1021/acs.cgd.2c01341
Journal - Research Article
Brooker, S. (2022). German-New Zealand Green Hydrogen Centre: Research, networking and outreach. Proceedings of the 16th Otago Energy Research Centre (OERC) Symposium: An Equitable and Low-Cost Energy Transition. (pp. 21). Retrieved from https://www.otago.ac.nz/oerc/symposia
Conference Contribution - Published proceedings: Abstract
Hamonnet, J., Bennington, M. S., Johannessen, B., Hamilton, J., Brooksby, P. A., Brooker, S., … Marshall, A. T. (2022). Influence of carbon support on the pyrolysis of cobalt phthalocyanine for the efficient electroreduction of CO2. ACS Catalysis, 12, 14571-14581. doi: 10.1021/acscatal.2c03929
Journal - Research Article
Bouldi, N., Mannini, M., Retegan, M., Miller, R. G., Cahier, B., Sainctavit, P., … Brooker, S., & Juhin, A. (2022). XAS and XMCD reveal a cobalt(II) imide undergoes high-pressure-induced spin crossover. Journal of Physical Chemistry C, 126, 5784-5792. doi: 10.1021/acs.jpcc.2c00614
Journal - Research Article
Bondì, L., Garden, A. L., Totti, F., Jerabek, P., & Brooker, S. (2022). Quantitative assessment of ligand substituent effects on σ- and π-contributions to Fe-N bonds in spin crossover FeII complexes. Chemistry: A European Journal, 28, e202104314. doi: 10.1002/chem.202104314
Journal - Research Article
Singh, V., Abudayyeh, A. M., Robb, M. G., & Brooker, S. (2022). Mono-copper far more active than analogous di-copper complex for electrocatalytic hydrogen evolution. Dalton Transactions, 51, 4166-4172. doi: 10.1039/d2dt00141a
Journal - Research Article
Abudayyeh, A. M., Schott, O., Feltham, H. L. C., Hanan, G. S., & Brooker, S. (2021). Copper catalysts for photo- and electro-catalytic hydrogen production. Inorganic Chemistry Frontiers, 8(4), 1015-1029. doi: 10.1039/d0qi01247e
Journal - Research Article
Bondì, L., Brooker, S., & Totti, F. (2021). Accurate prediction of pressure and temperature T1/2 variation in solid state spin crossover by ab initio methods: The [Co-II(dpzca)2] case. Journal of Materials Chemistry C, 9, 14256. doi: 10.1039/d1tc03467g
Journal - Research Article
Bondì, L., Rodríguez-Jiménez, S., Feltham, H. L. C., Garden, A. L., & Brooker, S. (2021). Probing the generality of spin crossover complex T½vs. ligand 15N NMR chemical shift correlations: Towards predictable tuning. Inorganic Chemistry Frontiers, 8(22), 4846-4857. doi: 10.1039/d1qi00919b
Journal - Research Article
Rodríguez-Jiménez, S., Bennington, M. S., Akbarinejad, A., Tay, E. J., Chan, E. W. C., Wan, Z., Abudayyeh, A. M., … Gordon, K. C., … Brooker, S. (2021). Electroactive metal complexes covalently attached to conductive PEDOT films: A spectroelectrochemical study. ACS Applied Materials & Interfaces, 13(1), 1301-1313. doi: 10.1021/acsami.0c16317
Journal - Research Article
Singh, S., & Brooker, S. (2021). Correlations between ligand field Δo spin crossover T1/2 and redox potential Epa in a family of five dinuclear helicates. Chemical Science, 12, 10919. doi: 10.1039/d1sc01458g
Journal - Research Article
Bondì, L., Garden, A. L., Jerabek, P., Totti, F., & Brooker, S. (2020). Quantitative and chemically intuitive evaluation of the nature of M-L bonds in paramagnetic compounds: Application of EDA-NOCV theory to spin crossover complexes. Chemistry: A European Journal, 26, 13677-13685. doi: 10.1002/chem.202002146
Journal - Research Article
Dhers, S., Wilson, R. K., Rouzieres, M., Clérac, R., & Brooker, S. (2020). A one-dimensional coordination polymer assembled from a macrocyclic Mn(III) single-molecule magnet and terephthalate. Crystal Growth & Design, 20, 1538-1542. doi: 10.1021/acs.cgd.9b01269
Journal - Research Article
Miller, R. G., Warren, M. R., Allan, D. R., & Brooker, S. (2020). Direct crystallographic observation of CO2 captured in zig zag channels of a copper(I) metal-organic framework. Inorganic Chemistry, 59, 6376-6381. doi: 10.1021/acs.inorgchem.0c00471
Journal - Research Article
Rinck, J., Kitchen, J. A., Carter, A. B., Lan, Y., Anson, C. E., Fink, K., Brooker, S., & Powell, A. K. (2020). Di- and tri-nuclear VIII and CrIII complexes of dipyridyltriazoles: Ligand rearrangements, mixed valency and ferromagnetic coupling. Frontiers in Chemistry, 8, 540. doi: 10.3389/fchem.2020.00540
Journal - Research Article
Singh, S., & Brooker, S. (2020). Extension of azine-triazole synthesis to azole-triazoles reduces ligand field, leading to spin crossover in tris-L FeII. Inorganic Chemistry, 59(2), 1265-1273. doi: 10.1021/acs.inorgchem.9b02993
Journal - Research Article
Sundaresan, S., Kitchen, J. A., & Brooker, S. (2020). Hydrophobic tail length in spin crossover active iron(II) complexes predictably tunes T½ in solution and enables surface immobilisation. Inorganic Chemistry Frontiers, 7, 2050-2059. doi: 10.1039/C9QI01478K
Journal - Research Article
Dhers, S., Feltham, H. L. C., Rouzières, M., Clérac, R., & Brooker, S. (2019). Discrete versus chain assembly: Hexacyanometallate linkers and macrocyclic {3d-4f} single-molecule magnet building blocks. Inorganic Chemistry, 58, 5543-5554. doi: 10.1021/acs.inorgchem.8b03455
Journal - Research Article
McPherson, J. N., Hogue, R. W., Akogun, F. S., Bondì, L., Luis, E. T., Price, J. R., Garden, A. L., Brooker, S., & Colbran, S. B. (2019). Predictable substituent control of CoIII/II redox potential and spin crossover in Bis(dipyridylpyrrolide)cobalt complexes. Inorganic Chemistry, 58(3), 2218-2228. doi: 10.1021/acs.inorgchem.8b03457
Journal - Research Article
Rodríguez-Jiménez, S., & Brooker, S. (2019). Qualitative guest sensing via iron(II) triazole complexes. Inorganic Chemistry, 58, 8188-8197. doi: 10.1021/acs.inorgchem.9b01006
Journal - Research Article
Rodríguez-Jiménez, S., Bondì, L., Yang, M., Garden, A. L., & Brooker, S. (2019). Predictable electronic tuning by choice of azine substituent in five iron(II) triazoles: Redox properties and DFT calculations. Chemistry: An Asian Journal, 14, 1158-1166. doi: 10.1002/asia.201801537
Journal - Research Article
Singh, S., Hogue, R. W., Feltham, H. L. C., & Brooker, S. (2019). Dinuclear helicate and tetranuclear cage assembly using appropriately designed ditopic triazole-azine ligands. Dalton Transactions, 48, 15435. doi: 10.1039/c9dt01890e
Journal - Research Article
Wilson, R. K., Dhers, S., Sproules, S., McInnes, E. J. L., & Brooker, S. (2019). Three manganese complexes of anionic N4-donor Schiff-base macrocycles: Monomeric MnII and MnIII, and dimeric MnIV. Australian Journal of Chemistry, 72, 805-810. doi: 10.1071/CH19209
Journal - Research Article
Balinski, K., Schneider, L., Wöllermann, J., Buling, A., Joly, L., Piamonteze, C., … Feltham, H. L. C., Brooker, S., … Kuepper, K. (2018). Element specific determination of the magnetic properties of two macrocyclic tetranuclear 3d-4f complexes with a Cu3Tb core by means of X-ray magnetic circular dichroism (XMCD). Physical Chemistry Chemical Physics, 20(33), 21286-21293. doi: 10.1039/c7cp08689j
Journal - Research Article
Feltham, H. L. C., Clérac, R., Peng, Y., Moreno-Pineda, E., Powell, A. K., & Brooker, S. (2018). The effect of modifying the macrocyclic ring size on Zn3Ln (Ln = Dy, Er, and Yb) single-molecule magnet behavior. Zeitschrift für Anorganische und Allgemeine Chemie, 644(14), 775-779. doi: 10.1002/zaac.201800155
Journal - Research Article
Feltham, H. L. C., Cowan, M. G., Kitchen, J. A., Jameson, G. N. L., & Brooker, S. (2018). Targeted structural modification of spin crossover complexes: Pyridine vs pyrazine. Supramolecular Chemistry, 30(4), 296-304. doi: 10.1080/10610278.2017.1358449
Journal - Research Article
Feltham, H. L. C., Dankhoff, K., Meledandri, C. J., & Brooker, S. (2018). Towards dual-functionality spin-crossover complexes. ChemPlusChem, 83(7), 582-589. doi: 10.1002/cplu.201700512
Journal - Research Article
Hogue, R. W., Lepper, C. P., Jameson, G. B., & Brooker, S. (2018). Manipulating and quantifying spin states in solution as a function of pressure and temperature. Chemical Communications, 54(2), 172-175. doi: 10.1039/c7cc08104a
Journal - Research Article
Hogue, R. W., Schott, O., Hanan, G. S., & Brooker, S. (2018). A smorgasbord of 17 new cobalt complexes active in photocatalytic hydrogen evolution. Chemistry: A European Journal, 24(39), 9820-9832. doi: 10.1002/chem.201800396
Journal - Research Article
Karabulut, F. N. H., Feltham, H. L. C., & Brooker, S. (2018). Substituents drive ligand rearrangements, giving dinuclear rather than mononuclear complexes, and tune CoII/III redox potential. Dalton Transactions, 47, 11749-11759. doi: 10.1039/c8dt01502c
Journal - Research Article
Malthus, S. J., Cameron, S. A., & Brooker, S. (2018). Improved access to 1,8-diformyl-carbazoles leads to metal-free carbazole-based [2 + 2] Schiff base macrocycles with strong turn-on fluorescence sensing of zinc(II) ions. Inorganic Chemistry, 57(5), 2480-2488. doi: 10.1021/acs.inorgchem.7b02763
Journal - Research Article
Rodríguez-Jiménez, S., Barltrop, A. S., White, N. G., Feltham, H. L. C., & Brooker, S. (2018). Solvent polarity predictably tunes spin crossover T1/2 in isomeric iron(II) pyrimidine triazoles. Inorganic Chemistry, 57(11), 6266-6282. doi: 10.1021/acs.inorgchem.8b00128
Journal - Research Article
Bennington, M. S., Feltham, H. L. C., Buxton, Z. J., White, N. G., & Brooker, S. (2017). Tuneable reversible redox of cobalt(III) carbazole complexes. Dalton Transactions, 46(14), 4696-4710. doi: 10.1039/c7dt00295e
Journal - Research Article
Feltham, H. L. C., Barltrop, A. S., & Brooker, S. (2017). Spin crossover in iron(II) complexes of 3,4,5-tri-substituted-1,2,4-triazole (Rdpt), 3,5-di-substituted-1,2,4-triazolate (dpt–), and related ligands. Coordination Chemistry Reviews, 344, 26-53. doi: 10.1016/j.ccr.2016.10.006
Journal - Research Article
Feltham, H. L. C., Dumas, C., Mannini, M., Otero, E., Sainctavit, P., Sessoli, R., Meledandri, C. J., & Brooker, S. (2017). Proof of principle: Immobilisation of robust CuII3TbIII-macrocycles on small, suitably pre-functionalised gold nanoparticles. Chemistry: A European Journal, 23(11), 2517-2521. doi: 10.1002/chem.201604821
Journal - Research Article
Hogue, R. W., Dhers, S., Hellyer, R. M., Luo, J., Hanan, G. S., Larsen, D. S., Garden, A. L., & Brooker, S. (2017). Self-assembly of cyclohelicate [M3L3] triangles over [M4L4] squares, despite near-linear bis-terdentate L and octahedral M. Chemistry: A European Journal, 23(57), 14193-14199. doi: 10.1002/chem.201702153
Journal - Research Article
Malthus, S. J., Wilson, R. K., Aggarwal, A. V., Cameron, S. A., Larsen, D. S., & Brooker, S. (2017). Carbazole-based N4-donor Schiff base macrocycles: Obtained metal free and as Cu(II) and Ni(II) complexes. Dalton Transactions, 46(10), 3141-3149. doi: 10.1039/c6dt04598g
Journal - Research Article
Rodríguez-Jiménez, S., & Brooker, S. (2017). Solid versus solution spin crossover and the importance of the Fe-N≡C(X) angle. Inorganic Chemistry, 56, 13697-13708. doi: 10.1021/acs.inorgchem.7b01338
Journal - Research Article
Rodríguez-Jiménez, S., Yang, M., Stewart, I., Garden, A. L., & Brooker, S. (2017). A simple method of predicting spin state in solution. Journal of the American Chemical Society, 139(50), 18392-18396. doi: 10.1021/jacs.7b11069
Journal - Research Article
Dhers, S., Feltham, H. L. C., Rouzières, M., Clérac, R., & Brooker, S. (2016). Macrocyclic {3d-4f} SMMs as building blocks for 1D-polymers: Selective bridging of 4f ions by use of an O-donor ligand. Dalton Transactions, 45, 18089-18093. doi: 10.1039/c6dt03734h
Journal - Research Article
Hogue, R. W., Feltham, H. L. C., Miller, R. G., & Brooker, S. (2016). Spin crossover in dinuclear N4S2 Iron(II) thioether-triazole complexes: Access to [HS-HS], [HS-LS], and [LS-LS] States. Inorganic Chemistry, 55(9), 4152-4165. doi: 10.1021/acs.inorgchem.5b02851
Journal - Research Article
Janzen, D. E., Juchum, M., Presow, S. R., Ronson, T. K., Mohr, W., Clérac, R., Feltham, H. L. C., & Brooker, S. (2016). Trigonal (-3) symmetry octahedral lanthanide(III) complexes of zwitterionic tripodal ligands: Luminescence and magnetism. Supramolecular Chemistry, 28(1-2), 125-140. doi: 10.1080/10610278.2015.1102264
Journal - Research Article
Malthus, S. J., Cameron, S. A., & Brooker, S. (2016). First row transition metal complexes of di-o-substituted-diarylamine-based ligands (including carbazoles, acridines and dibenzoazepines). Coordination Chemistry Reviews, 316, 125-161. doi: 10.1016/j.ccr.2016.02.006
Journal - Research Article
Malthus, S. J., Wilson, R. K., Larsen, D. S., & Brooker, S. (2016). Acridine-based ligands from cobalt(II) mediated rearrangement of diphenylamine-based starting materials. Supramolecular Chemistry, 28(1-2), 98-107. doi: 10.1080/10610278.2015.1091458
Journal - Research Article
Miller, R. G., & Brooker, S. (2016). Reversible quantitative guest sensing via spin crossover of an iron(II) triazole. Chemical Science, 7(4), 2501-2505. doi: 10.1039/c5sc04583e
Journal - Research Article
Miller, R. G., Southon, P. D., Kepert, C. J., & Brooker, S. (2016). Commensurate CO2 capture, and shape selectivity for HCCH over H2CCH2, in zigzag channels of a robust CuI(CN)(L) metal—organic framework. Inorganic Chemistry, 55(12), 6195-6200. doi: 10.1021/acs.inorgchem.6b00813
Journal - Research Article
Rodríguez-Jiménez, S., Feltham, H. L. C., & Brooker, S. (2016). Non-porous iron(II)-based sensor: Crystallographic insights into a cycle of colorful guest-induced topotactic transformations. Angewandte Chemie International Edition, 55(48), 15067-15071. doi: 10.1002/anie.201608813
Journal - Research Article
Thevenon, A., Romain, C., Bennington, M. S., White, A. J. P., Davidson, H. J., Brooker, S., & Williams, C. K. (2016). Dizinc lactide polymerization catalysts: Hyperactivity by control of ligand conformation and metallic cooperativity. Angewandte Chemie International Edition, 55(30), 8680-8685. doi: 10.1002/anie.201602930
Journal - Research Article
White, N. G., & Brooker, S. (2016). New complexation behaviour of the potentially bis-terdentate triazole based ligands PMAT and PMPT: FeIII4 oxo-bridged metallomacrocycles. Polyhedron, 103(Part B), 283-287. doi: 10.1016/j.poly.2015.03.034
Journal - Research Article
Brooker, S. (2015). Spin crossover with thermal hysteresis: Practicalities and lessons learnt. Chemical Society Reviews, 44, 2880-2892. doi: 10.1039/c4cs00376d
Journal - Research Article
Cowan, M. G., Miller, R. G., & Brooker, S. (2015). Pyrazine-imide complexes: Reversible redox and MOF building blocks. Dalton Transactions, 44(6), 2880-2892. doi: 10.1039/c4dt03407d
Journal - Research Article
Cowan, M. G., Miller, R. G., & Brooker, S. (2015). Smaller is smarter in a new cobalt(II) imide: Intermolecular interactions involving pyrazine versus the larger aromatic quinoxaline. Supramolecular Chemistry, 27(11-12), 780-786. doi: 10.1080/10610278.2015.1075535
Journal - Research Article
Dhers, S., Feltham, H. L. C., & Brooker, S. (2015). A toolbox of building blocks, linkers and crystallisation methods used to generate single-chain magnets. Coordination Chemistry Reviews, 296, 24-44. doi: 10.1016/j.ccr.2015.03.012
Journal - Research Article
Feltham, H. L. C., Dhers, S., Rouzières, M., Clérac, R., Powell, A. K., & Brooker, S. (2015). A family of fourteen soluble stable macrocyclic [NiII3LnIII] heterometallic 3d-4f complexes. Inorganic Chemistry Frontiers, 2, 982-990. doi: 10.1039/C5QI00130G
Journal - Research Article
Feltham, H. L. C., Johnson, C., Elliott, A. B. S., Gordon, K. C., Albrecht, M., & Brooker, S. (2015). "Tail" tuning of iron(II) spin crossover temperature by 100 K. Inorganic Chemistry, 54(6), 2902-2909. doi: 10.1021/ic503040f
Journal - Research Article
Miller, R. G., & Brooker, S. (2015). Spin crossover, reversible redox, and supramolecular interactions in 3d complexes of 4-(4-pyridyl)-2,5-dipyrazyl-pyridine. Inorganic Chemistry, 54(11), 5398-5409. doi: 10.1021/acs.inorgchem.5b00428
Journal - Research Article
Miller, R. G., Narayanaswamy, S., Clark, S. M., Dera, P., Jameson, G. B., Tallon, J. L., & Brooker, S. (2015). Pressure induced separation of phase-transition-triggered-abrupt vs. gradual components of spin crossover. Dalton Transactions, 44, 20843-20849. doi: 10.1039/c5dt03795f
Journal - Research Article
Romain, C., Bennington, M. S., White, A. J. P., Williams, C. K., & Brooker, S. (2015). Macrocyclic dizinc(II) alkyl and alkoxide complexes: Reversible CO2 uptake and polymerization catalysis testing. Inorganic Chemistry, 54(24), 11842-11851. doi: 10.1021/acs.inorgchem.5b02038
Journal - Research Article
Cowan, M. G., Miller, R. G., Southon, P. D., Price, J. R., Yazaydin, O., Lane, J. R., … Brooker, S. (2014). Selective gas adsorption in a pair of robust isostructural MOFs differing in framework charge and anion loading. Inorganic Chemistry, 53(22), 12075-12083. doi: 10.1021/ic501876m
Journal - Research Article
Feltham, H. L. C., & Brooker, S. (2014). Review of purely 4f and mixed-metal nd-4f single-molecule magnets containing only one lanthanide ion. Coordination Chemistry Reviews, 276, 1-33. doi: 10.1016/j.ccr.2014.05.011
Journal - Research Article
Hogue, R. W., Miller, R. G., White, N. G., Feltham, H. L. C., Jameson, G. N. L., & Brooker, S. (2014). Hysteretic spin crossover in iron(II) complexes of a new pyridine-triazole-pyrazine ligand is tuned by choice of NCE co-ligand. Chemical Communications, 50, 1435-1437. doi: 10.1039/c3cc43922d
Journal - Research Article
Kulmaczewski, R., Olguín, J., Kitchen, J. A., Feltham, H. L. C., Jameson, G. N. L., Tallon, J. L., & Brooker, S. (2014). Remarkable scan rate dependence for a highly constrained dinuclear iron(II) spin crossover complex with a wide thermal hysteresis loop. Journal of the American Chemical Society, 136(3), 878-881. doi: 10.1021/ja411563x
Journal - Research Article
Miller, R. G., Narayanaswamy, S., Tallon, J. L., & Brooker, S. (2014). Spin crossover with thermal hysteresis in cobalt(II) complexes and the importance of scan rate. New Journal of Chemistry, 38(5), 1932-1941. doi: 10.1039/c3nj01451g
Journal - Research Article
Bhattacharjee, A., Roy, M., Ksenofontov, V., Kitchen, J. A., Brooker, S., & Gütlich, P. (2013). Pressure effect studies on the spin-transition behavior of a dinuclear iron(II) compound. European Journal of Inorganic Chemistry, 2013(5-6), 843-849. doi: 10.1002/ejic.201201522
Journal - Research Article
Bilbeisi, R. A., Zarra, S., Feltham, H. L. C., Jameson, G. N. L., Clegg, J. K., Brooker, S., & Nitschke, J. R. (2013). Guest binding subtly influences spin crossover in an FeII4L4 capsule. Chemistry: A European Journal, 19(25), 8058-8062. doi: 10.1002/chem.201300805
Journal - Research Article
Dhers, S., Feltham, H. L. C., Clérac, R., & Brooker, S. (2013). Design of one-dimensional coordination networks from a macrocyclic {3d-4f} single-molecule magnet precursor linked by [W(CN)8]3 –anions. Inorganic Chemistry, 52(23), 13685-13691. doi: 10.1021/ic402248y
Journal - Research Article
Feltham, H. L. C., Clérac, R., Ungur, L., Chibotaru, L. F., Powell, A. K., & Brooker, S. (2013). By design: A macrocyclic 3d—4f single-molecule magnet with quantifiable zero-field slow relaxation of magnetization. Inorganic Chemistry, 52, 3236-3240. doi: 10.1021/ic302735j
Journal - Research Article
Gobeze, W. A., & Brooker, S. (2013). Two distinct tetranuclear motifs, rectangular vs extended, are observed for complexes of a bis-tetradentate pyrimidine-based ligand. RSC Advances, 3, 24307-24312. doi: 10.1039/C3RA45091K
Journal - Research Article
Gobeze, W. A., Milway, V. A., Chilton, N. F., Moubaraki, B., Murray, K. S., & Brooker, S. (2013). Di- and tetranuclear complexes of bis-tetradentate pyrimidine-based ligands with all-methylene- versus mixed methylene/ethylene-linked arms. European Journal of Inorganic Chemistry, 2013(25), 4485-4498. doi: 10.1002/ejic.201300368
Journal - Research Article
Kitchen, J. A., Olguín, J., Kulmaczewski, R., White, N. G., Milway, V. A., Jameson, G. N. L., … Brooker, S. (2013). Effect of N4-substituent choice on spin crossover in dinuclear iron(II) complexes of bis-terdentate 1,2,4-triazole-based ligands. Inorganic Chemistry, 52, 11185-11199. doi: 10.1021/ic4014416
Journal - Research Article
White, N. G., & Brooker, S. (2013). Metal acetates form diverse polynuclear complexes with 4-amino-3,5-di(2-pyridyl)-1,2,4-triazole (adpt). Supramolecular Chemistry, 25(12), 806-811. doi: 10.1080/10610278.2013.804187
Journal - Research Article
Wilson, R. K., & Brooker, S. (2013). Oxidative dehydrogenation of a new tetra-amine N4-donor macrocycle tunes the nickel(II) spin state from high spin to low spin. Dalton Transactions, 42(34), 12075-12078. doi: 10.1039/c3dt51776d
Journal - Research Article
Wilson, R. K., (née Sanyal), & Brooker, S. (2013). Complexes of a porphyrin-like N4-donor Schiff-base macrocycle. Dalton Transactions, (42), 7913-7923. doi: 10.1039/c3dt33057e
Journal - Research Article
Brooker, S., White, N. G., Bauzá, A., Deyà, P. M., & Frontera, A. (2012). Understanding the forces that govern packing: A density functional theory and structural investigation of anion—π—anion and nonclassical C—H...anion interactions. Inorganic Chemistry, 51(19), 10334-10340. doi: 10.1021/ic3014688
Journal - Research Article
Cowan, M. G., & Brooker, S. (2012). Nine non-symmetric pyrazine-pyridine imide-based complexes: Reversible redox and isolation of [MII/III(pypzca)2]0/+ when M = Co, Fe. Dalton Transactions, 41, 1465-1474. doi: 10.1039/c1dt11128k
Journal - Research Article
Cowan, M. G., & Brooker, S. (2012). Syntheses, structures and properties of structurally characterised complexes of imide-based ligands. Coordination Chemistry Reviews, 256(23-24), 2944-2971. doi: 10.1016/j.ccr.2012.06.004
Journal - Research Article
Cowan, M. G., Olguín, J., Narayanaswamy, S., Tallon, J. L., & Brooker, S. (2012). Reversible switching of a cobalt complex by thermal, pressure and electrochemical stimuli: Abrupt, complete, hysteretic spin crossover. Journal of the American Chemical Society, 134(6), 2892-2894. doi: 10.1021/ja208429u
Journal - Research Article
Feltham, H. L. C., Clérac, R., Ungur, L., Vieru, V., Chibotaru, L. F., Powell, A. K., & Brooker, S. (2012). Synthesis and magnetic properties of a new family of macrocyclic MII3LnIII complexes: Insights into the effect of subtle chemical modification on single-molecule magnet behavior. Inorganic Chemistry, 51(20), 10603-10612. doi: 10.1021/ic300819u
Journal - Research Article
Gobeze, W. A., Milway, V. A., Moubaraki, B., Murray, K. S., & Brooker, S. (2012). Solvent control: Dinuclear versus tetranuclear complexes of a bis-tetradentate pyrimidine-based ligand. Dalton Transactions, 41, 9708-9721. doi: 10.1039/c2dt12449a
Journal - Research Article
Gobeze, W. A., Milway, V. A., Olguín, J., Jameson, G. N. L., & Brooker, S. (2012). Nine diiron(II) complexes of three bis-tetradentate pyrimidine based ligands with NCE (E = S, Se, BH3) coligands. Inorganic Chemistry, 51(16), 9056-9065. doi: 10.1021/ic3012052
Journal - Research Article
Kelso, G. F., Maroz, A., Cochemé, H. M., Logan, A., Prime, T. A., Peskin, A. V., Winterbourn, C. C., James, A. M., … Brooker, S., Porteous, C. M., … Smith, R. A. J. (2012). A mitochondria-targeted macrocyclic Mn(II) superoxide dismutase mimetic. Chemistry & Biology, 19(10), 1237-1246. doi: 10.1016/j.chembiol.2012.08.005
Journal - Research Article
Miller, R. G., Jameson, G. N. L., Olguín, J., & Brooker, S. (2012). Synthesis and characterisation of two high spin iron(II) complexes of 3,4-diphenyl-5-(2-pyridyl)-1,2,4-triazole. Supramolecular Chemistry, 24(8), 547-552. doi: 10.1080/10610278.2012.691608
Journal - Research Article
Olguín, J., Kalisz, M., Clérac, R., & Brooker, S. (2012). Di- and tetra-nuclear copper(II), nickel(II), and cobalt(II) complexes of four bis-tetradentate triazole-based ligands: Synthesis, structure, and magnetic properties. Inorganic Chemistry, 51(9), 5058-5069. doi: 10.1021/ic202537c
Journal - Research Article
White, N. G., Kitchen, J. A., Joule, J. A., & Brooker, S. (2012). Copper-induced N-N bond cleavage results in an octanuclear expanded-core grid-like complex. Chemical Communications, 48(50), 6229-6231. doi: 10.1039/c2cc32018e
Journal - Research Article
Cameron, S. A., & Brooker, S. (2011). Metal-free and Dicopper(II) complexes of Schiff base [2 + 2] macrocycles derived from 2,2'-iminobisbenzaldehyde: Syntheses, structures, and electrochemistry. Inorganic Chemistry, 50(8), 3697-3706. doi: 10.1021/ic200059n
Journal - Research Article
Feltham, H. L. C., Clérac, R., Powell, A. K., & Brooker, S. (2011). A tetranuclear, macrocyclic 3d—4f complex showing single-molecule magnet behavior. Inorganic Chemistry, 50(10), 4232-4234. doi: 10.1021/ic2003639
Journal - Research Article
Feltham, H. L. C., Klöwer, F., Cameron, S. A., Larsen, D. S., Lan, Y., Tropiano, M., … Powell, A. K., & Brooker, S. (2011). A family of 13 tetranuclear zinc(II)-lanthanide(III) complexes of a [3 + 3] Schiff-base macrocycle derived from 1‚4-diformyl-2‚3-dihydroxybenzene. Dalton Transactions, 40, 11425-11432. doi: 10.1039/c1dt11038a
Journal - Research Article
Feltham, H. L. C., Lan, Y., Klöwer, F., Ungur, L., Chibotaru, L. F., Powell, A. K., & Brooker, S. (2011). A non-sandwiched macrocyclic monolanthanide single-molecule magnet: The key role of axiality. Chemistry: A European Journal, 17(16), 4362-4365. doi: 10.1002/chem.201100438
Journal - Research Article
Kitchen, J. A., White, N. G., Jameson, G. N. L., Tallon, J. L., & Brooker, S. (2011). Effect of counteranion X on the spin crossover properties of a family of diiron(II) triazole complexes [FeII2(PMAT)2](X)4. Inorganic Chemistry, 50, 4586-4597. doi: 10.1021/ic200308k
Journal - Research Article
Li, R., & Brooker, S. (2011). An unexpected mixed-valence cobalt(II)/cobalt(III) complex of a pyrrole-containing tridentate Schiff-base ligand. Journal of Inclusion Phenomena & Macrocyclic Chemistry, 71(3-4), 303-309. doi: 10.1007/s10847-011-9977-7
Journal - Research Article
Li, R., & Brooker, S. (2011). Copper(II) and palladium(II) complexes of a terdentate pyrrolidine diester ligand. Inorganica Chimica Acta, 365(1), 246-250. doi: 10.1016/j.ica.2010.09.032
Journal - Research Article
Olguín, J., & Brooker, S. (2011). Spin crossover active iron(II) complexes of selected pyrazole-pyridine/pyrazine ligands. Coordination Chemistry Reviews, 255(1-2), 203-240. doi: 10.1016/j.ccr.2010.08.002
Journal - Research Article
Olguín, J., & Brooker, S. (2011). Synthesis of 3- and 5-formyl-4-phenyl-1H-pyrazoles: Promising head units for the generation of asymmetric imine ligands and mixed metal polynuclear complexes. New Journal of Chemistry, 35(6), 1242-1253. doi: 10.1039/c0nj00774a
Journal - Research Article
Olguín, J., Jameson, G. N. L., & Brooker, S. (2011). Two dinuclear iron(II) complexes K[Fe2(L1)(SCN)4]•2(C3H8O) and [Fe2(L1)(SeCN)3(C5H5N)]•H2O are stabilised in the '[HS—LS]' state by a bis-tetradentate pyrazolate-based ligand. Dalton Transactions, 40(18), 5086-5089. doi: 10.1039/c0dt01391a
Journal - Research Article
Olguín, J., Jameson, G. N. L., & Brooker, S. (2011). Two mononuclear iron (II) complexes of 4-phenylpyrazole-5-carbaldehyde derived ligands are stabilised in different spin states. RSC Advances, 1(1), 52-57. doi: 10.1039/c1ra00190f
Journal - Research Article
Willms, H., Cowan, M. G., & Brooker, S. (2011). Heteroleptic N6 coordinated ruthenium(II) complexes as building blocks for the formation of discrete Ru2Ag2 complexes. Chemical Communications, 47, 1063-1065. doi: 10.1039/c0cc03969a
Journal - Research Article
Feltham, H. L. C., Clérac, R., & Brooker, S. (2010). Octa- and hendecanuclear zinc(II) complexes of an acyclic diimine ligand derived from 1,4-diformyl-2,3-dihydroxybenzene. Polyhedron, 29, 1353-1357. doi: 10.1016/j.poly.2009.12.027
Journal - Research Article
Handel, R. W., Willms, H., Jameson, G. B., Berry, K. J., Moubaraki, B., Murray, K. S., & Brooker, S. (2010). Factors influencing the structural and magnetic properties of octahedral cobalt(II) and iron(II) complexes of terdentate N3 Schiff base ligands. European Journal of Inorganic Chemistry, (21), 3317-3327. doi: 10.1002/ejic.201000288
Journal - Research Article
Kitchen, J. A., & Brooker, S. (2010). Two dicobalt(III) complexes of triazolate-containing [2+2] Schiff-base macrocycles coordinate thiocyanate ions via the sulfur atom. Dalton Transactions, 39(14), 3358-3360. doi: 10.1039/b925745d
Journal - Research Article