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Professor Sally Brooker

sally_brooker3PhD, BSc(Hons) (Cant)

Tel: 03 479 7919
Location: Science II, 2c4
Email: sbrooker@chemistry.otago.ac.nz

Full information about my research group and research opportunities: http://otago.ac.nz/brooker

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
  • 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)
  • Attachment of magnetically interesting complexes to nanoparticles (in house collaboration with Dr Carla Meledandri)
  • 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 Prof Charlotte Williams, Imperial College London)
  • Self-assembly of communicating arrays of transition metal ions - grids vs side-by-side complexes
  • Non-toxic coordination complexes for photocatalytic generation of hydrogen from water (in collaboration with Prof Garry Hanan)
  • 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', in collaboration with Drs Jean Fleming (Anatomy and Structural Biology) and Sally McCormick (Biochemistry).

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Publications

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. Advance online publication. doi: 10.1002/chem.201800396

Balinski, K., Schneider, L., Wöllermann, J., Buling, A., Joly, L., . . ., 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. Advance online publication. doi: 10.1039/c7cp08689j

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

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

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. Advance online publication. doi: 10.1039/c8dt01502c

Chapter in Book - Research

Olguín, J., & Brooker, S. (2013). Spin-crossover in discrete polynuclear complexes. In M. A. Halcrow (Ed.), Spin-crossover materials: Properties and applications. (pp. 77-120). Chichester, UK: John Wiley & Sons. doi: 10.1002/9781118519301.ch3

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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. Advance online publication. doi: 10.1002/chem.201800396

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. Advance online publication. doi: 10.1039/c8dt01502c

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

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

Balinski, K., Schneider, L., Wöllermann, J., Buling, A., Joly, L., . . ., 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. Advance online publication. doi: 10.1039/c7cp08689j

Hogue, R. W., Singh, S., & Brooker, S. (2018). Spin crossover in discrete polynuclear iron(II) complexes. Chemical Society Reviews. Advance online publication. doi: 10.1039/c7cs00835j

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

Feltham, H. L. C., Dankhoff, K., Meledandri, C. J., & Brooker, S. (2018). Towards dual-functionality spin-crossover complexes. ChemPlusChem. Advance online publication. doi: 10.1002/cplu.201700512

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

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

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

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

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

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

Feltham, H. L. C., Cowan, M. G., Kitchen, J. A., Jameson, G. N. L., & Brooker, S. (2017). Targeted structural modification of spin crossover complexes: Pyridine vs pyrazine. Supramolecular Chemistry. Advance online publication. doi: 10.1080/10610278.2017.1358449

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Brooker, S. (2015). Spin crossover with thermal hysteresis: Practicalities and lessons learnt. Chemical Society Reviews, 44, 2880-2892. doi: 10.1039/c4cs00376d

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

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

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

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

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

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

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

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

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

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

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

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

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

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