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Professor Lyall Hanton

lyall_hantonPhD (Cambridge), BSc (Otago)

Tel: 03 479 7918
Location: Science II, Gc7
Email: lhanton@chemistry.otago.ac.nz

The synthesis and structural control of metallosupramolecular architectures have implications for the rational design of functional materials, i.e. inorganic networks with photophysical, electronic, magnetic or catalytic properties. Networks are held together by a variety of interactions, such as covalent bonds, hydrogen bonds, p–p interactions, or semi-coordinate bonds. Architectures are designed to optimize the use of these interactions to control the placement and spacing of metal centres.

We use a building block approach to synthesize metallosupramolecular networks. Using our expertise in transition metal coordination chemistry and ligand synthesis, we are building networks based on a variety of flexible thio-substituted oligopyridines as linkers between various metal ion connectors such as Ag(I), Cu(I) and Cu(II).

One recent success has been the preparation of a mixed-valence netowrk of halide-bridged Cu(I) and Cu(II) centres. It is the first such network with strictly alternating Cu(I) and Cu(II) centres. We are currently investigating the magnetic properties of this new material.

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Publications

Hutchinson, D. J., Hanton, L. R., & Moratti, S. C. (2010). Control of self-assembly through the influence of terminal hydroxymethyl groups on the metal coordination of pyrimidine-hydrazone Cu(II) complexes. Inorganic Chemistry, 49(13), 5923-5934. doi: 10.1021/ic100384e

Vellas, S. K., Lewis, J. E. M., Shankar, M., Sagatova, A., Tyndall, J. D. A., Monk, B. C., Fitchett, C. M., Hanton, L. R., & Crowley, J. D. (2013). [Fe2L3]4+ cylinders derived from bis(bidentate) 2-pyridyl-1,2,3-triazole "click" ligands: Synthesis, structures and exploration of biological activity. Molecules, 18(6), 6383-6407. doi: 10.3390/molecules18066383

Black, C. A., Hanton, L. R., & Spicer, M. D. (2007). A coordination polymer strategy for anion encapsulation: Anion-π interactions in (4,4) nets formed from Ag(I) salts and a flexible pyrimidine ligand. Chemical Communications, 3171-3173.

Cordes, D. B., Hanton, L. R., & Spicer, M. D. (2006). Helices versus zigzag chains: One-dimensional coordination polymers of Ag1 and bis(4-pyridyl)amine. Inorganic Chemistry, 45, 7651-7664.

Cordes, D. B., & Hanton, L. R. (2007). Structural invariance in silver(I) coordination networks formed using flexible four-armed thiopyridine ligands. Inorganic Chemistry, 46(5), 1634-1644.

Hutchinson, D. J., Hanton, L. R., & Moratti, S. C. (2010). Control of self-assembly through the influence of terminal hydroxymethyl groups on the metal coordination of pyrimidine-hydrazone Cu(II) complexes. Inorganic Chemistry, 49(13), 5923-5934. doi: 10.1021/ic100384e

Journal - Research Article

Vellas, S. K., Lewis, J. E. M., Shankar, M., Sagatova, A., Tyndall, J. D. A., Monk, B. C., Fitchett, C. M., Hanton, L. R., & Crowley, J. D. (2013). [Fe2L3]4+ cylinders derived from bis(bidentate) 2-pyridyl-1,2,3-triazole "click" ligands: Synthesis, structures and exploration of biological activity. Molecules, 18(6), 6383-6407. doi: 10.3390/molecules18066383

Journal - Research Article

Black, C. A., Hanton, L. R., & Spicer, M. D. (2007). A coordination polymer strategy for anion encapsulation: Anion-π interactions in (4,4) nets formed from Ag(I) salts and a flexible pyrimidine ligand. Chemical Communications, 3171-3173.

Journal - Research Article

Cordes, D. B., Hanton, L. R., & Spicer, M. D. (2006). Helices versus zigzag chains: One-dimensional coordination polymers of Ag1 and bis(4-pyridyl)amine. Inorganic Chemistry, 45, 7651-7664.

Journal - Research Article

Cordes, D. B., & Hanton, L. R. (2007). Structural invariance in silver(I) coordination networks formed using flexible four-armed thiopyridine ligands. Inorganic Chemistry, 46(5), 1634-1644.

Journal - Research Article

Goswami, S. K., Hanton, L. R., McAdam, C. J., Moratti, S. C., & Simpson, J. (2011). N-(1-Acryloyl-2,2,6,6-tetramethylpiperidin-4-yl)acrylamide. Acta Crystallographica Section E, 67, o3024-o3025. doi: 10.1107/s1600536811042693

Journal - Research Article

Aziz, M. A., Cabral, J. D., Brooks, H. J. L., Moratti, S. C., & Hanton, L. R. (2012). Antimicrobial properties of a chitosan dextran-based hydrogel for surgical use. Antimicrobial Agents & Chemotherapy, 56(1), 280-287. doi: 10.1128/aac.05463-11

Journal - Research Article

Hutchinson, D. J., Hanton, L. R., & Moratti, S. C. (2011). Metal ion-controlled self-assembly using pyrimidine hydrazone molecular strands with terminal hydroxymethyl groups: A comparison of Pb(II) and Zn(II) complexes. Inorganic Chemistry, 50(16), 7637-7649. doi: 10.1021/ic200670w

Journal - Research Article

Abdul-Kadir, M., Hanton, L. R., & Sumby, C. J. (2011). Self-assembled metallo-macrocycle based coordination polymers with unsymmetrical amide ligands. Dalton Transactions, 40, 12374-12380. doi: 10.1039/c1dt10853k

Journal - Research Article

Hanton, L. R., Moratti, S. C., Shi, Z., & Simpson, J. (2010). N-Methacryloyl-4-(piperidin-1-yl)-1,8-naphthalimide. Acta Crystallographica Section E, 66(6), o1476. doi: 10.1107/S1600536810018994

Journal - Research Article

Crowley, J. D., Bandeen, P. H., & Hanton, L. R. (2010). A one pot multi-component CuAAC ″click″ approach to bidentate and tridentate pyridyl-1,2,3-triazole ligands: Synthesis, X-ray structures and copper(II) and silver(I) complexes. Polyhedron, 29(1), 70-83. doi: 10.1016/j.poly.2009.06.010

Journal - Research Article

Crees, R. S., Cole, M. L., Hanton, L. R., & Sumby, C. J. (2010). Synthesis of a zinc(II) imidazolium dicarboxylate ligand metal-organic framework (MOF): A potential precursor to MOF-tethered N-heterocyclic carbene compounds. Inorganic Chemistry, 49(4), 1712-1719. doi: 10.1021/ic9021118

Journal - Research Article

Valentine, R., Athanasiadis, T., Moratti, S., Hanton, L., Robinson, S., & Wormald, P.-J. (2010). The efficacy of a novel chitosan gel on hemostasis and wound healing after endoscopic sinus surgery. American Journal of Rhinology & Allergy, 24(1), 70-75. doi: 10.2500/ajra.2010.24.3422

Journal - Research Article

Hollis, C. A., Hanton, L. R., Morris, J. C., & Sumby, C. J. (2009). 2-D coordination polymers of hexa(4-cyanophenyl)[3]-radialene and silver(I): Anion...π-interactions and radialene C-H...anion hydrogen bonds in the solid-state interactions of hexaaryl[3]-radialenes with anions. Crystal Growth & Design, 9(6), 2911-2916. doi: 10.1021/cg9002302

Journal - Research Article

Hutchinson, D. J., Hanton, L. R., & Moratti, S. C. (2009). 2-Methyl-4,6-bis(1-methylhydrazino)pyrimidine. Acta Crystallographica Section E, E65, o1546. doi: 10.1107/s1600536809021643

Journal - Research Article

Romain, S., Duboc, C., Neese, F., Rivière, E., Hanton, L. R., Blackman, A. G., … Collomb, M.-N. (2009). An unusual stable mononuclear MnIII bis-terpyridine complex exhibiting Jahn-Teller compression: Electrochemical synthesis, physical characterisation and theoretical study. Chemistry: A European Journal, 15(4), 980-988. doi: 10.1002/chem.200801442

Journal - Research Article

Munro, N. H., Hanton, L. R., Moratti, S. C., & Robinson, B. H. (2009). Preparation and graft copolymerisation of thiolated β-chitin and chitosan derivatives. Carbohydrate Polymers, 78(1), 137-145. doi: 10.1016/j.carbpol.2009.04.018

Journal - Research Article

Sumby, C. J., & Hanton, L. R. (2009). Syntheses and studies of flexible amide ligands: A toolkit for studying metallo-supramolecular assemblies for anion binding. Tetrahedron, 65(24), 4681-4691. doi: 10.1016/j.tet.2009.04.031

Journal - Research Article

Munro, N. H., Hanton, L. R., Moratti, S. C., & Robinson, B. H. (2009). Synthesis and characterisation of chitosan-graft-poly(OEGMA) copolymers prepared by ATRP. Carbohydrate Polymers, 77(3), 496-505. doi: 10.1016/j.carbpol.2009.01.026

Journal - Research Article

Liu, G., Shi, Z., Kuriger, T., Hanton, L. R., Simpson, J., Moratti, S. C., Robinson, B. H., … Robinson, S. (2009). Synthesis and characterization of chitosan/dextran-based hydrogels for surgical use. Macromolecular Symposia, 279, 151-157. doi: 10.1002/masy.200950523

Journal - Research Article

Munro, N. H., Hanton, L. R., McAdam, C. J., & McMorran, D. A. (2008). 4-[(E)-2-Ferrocenylethenyl]-1,8-naphthalic anhydride. Acta Crystallographica Section E, E64, m572. doi: 10.1107/S1600536808007393

Journal - Research Article

Munro, N. H., & Hanton, L. R. (2008). A redetermination at low temperature of the structure of triethylammonium bromide. Acta Crystallographica Section E, E64, o2236. doi: 10.1107/S1600536808034843

Journal - Research Article

Buchholz, R. R., Etienne, M. E., Dorgelo, A., Mirams, R. E., Smith, S. J., Chow, S. Y., Hanton, L. R., … Gahan, L. R. (2008). A structural and catalytic model for zinc phosphoesterases. Dalton Transactions, 43, 6045-6054. doi: 10.1039/b806391e

Journal - Research Article

Osman, H., Larsen, D. S., Hanton, L. R., & Simpson, J. (2008). Phenyl 2,3-O-isopropylidene-1-thio-α-D-rhamnopyranoside. Acta Crystallographica Section E, E64, o24-o25. doi: 10.1107/S1600536807061004

Journal - Research Article

Young, A. G., & Hanton, L. R. (2008). Square planar silver(I) complexes: A rare but increasingly observed stereochemistry for silver(I). Coordination Chemistry Reviews, 252, 1346-1386. doi: 10.1016/j.ccr.2007.07.017

Journal - Research Article

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