研究领域

Synthesis

Our interests encompass a number of areas spanning conventional organic, biological and inorganic chemistry. In all our work, nuclear magnetic resonance (NMR) spectroscopy is used as the principal tool for the structural and dynamic characterisation of a diverse range of compounds. Rational Design and Synthesis of Multimetal Supramolecular Systems (in collaboration with Prof. J.K.M. Sanders). Large and often complex molecules are prepared in order to mimic specific properties inherent in nature or of interest in the laboratory. Construction employs covalent and non-covalent linkages between building blocks - often using metal-ligand interactions (Zn, Ru, Ni, Sn). The first phase involves modelling the target molecules to ensure that they will exhibit the desired structural characteristics, which influence specific binding interactions. A typical system is shown on the right. Spectroscopy at the Interface between the Solid and Solution State. One aspect of our interest involves characterisation and manipulation of molecules at the atomic level. Collaborative studies (Prof. M.E. Welland, Department of Engineering, and Dr Q. Guo, Department of Physics at Birmingham University) have allowed us to "see" single complex molecules on substrate surfaces using STM (a striking example of a porphyrin dimer is shown on the right) and AFM. The second aspect involves synthesis and characterisation (by HR-MAS NMR) of molecules bound to solid supports which exhibit part solid/part liquid properties and can generate sensors and molecular switches (in collaboration with Prof. M. J. Gunter, Department of Chemistry, University of New England, Australia). Small Molecule NMR Characterisation. The large arsenal of high resolution spectrometers in this department and our range of new state of the art probes (gradient, gel- phase, CryoProbe) have allowed us to deal with a diverse range of challenging organic and inorganic compounds.

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‘Click’ functionalised polymer resins: a new approach to the synthesis of surface attached bipyridinium and naphthalene diimide [2]rotaxanes H Wilson, S Byrne, N Bampos, KM Mullen – Org Biomol Chem (2013) 11, 2105 (DOI: 10.1039/c3ob27273g) Synthesis of a four-component [3]catenane using three distinct noncovalent interactions. MÁ Alemán García, N Bampos – Org Biomol Chem (2013) 11, 27 (DOI: 10.1039/c2ob26587g) Host–guest interactions in acid–porphyrin complexes MJ Webb, S Deroo, CV Robinson, N Bampos – Chemical communications (Cambridge, England) (2012) 48, 9358 (DOI: 10.1039/c2cc33668e) Noncovalent interactions in acid-porphyrin complexes MJ Webb, N Bampos – Chemical Science (2012) 3, 2351 (DOI: 10.1039/c2sc20271a) One-pot synthesis of indene-expanded porphyrins. GR Peterson, N Bampos – Angew Chem Int Ed Engl (2010) 49, 3930 (DOI: 10.1002/anie.200906580) Anion templated assembly of an indolocarbazole containing pseudorotaxane on beads and silica nanoparticles LY Zhao, KM Mullen, MJ Chmielewski, A Brown, N Bampos, PD Beer, JJ Davis – New Journal of Chemistry (2009) 33, 760 (DOI: 10.1039/b818854h) Crown-ether- and porphyrin-attached gel-phase resins in thermodynamically controlled rotaxane assembly KM Mullen, KD Johnstone, D Nath, N Bampos, JK Sanders, MJ Gunter – Org Biomol Chem (2009) 7, 293 (DOI: 10.1039/b816115a) Monitoring the thermodynamically-controlled formation of diimide-based resin-attached rotaxanes by gel-phase HR MAS 1H NMR spectroscopy KM Mullen, KD Johnstone, M Webb, N Bampos, JK Sanders, MJ Gunter – Org Biomol Chem (2008) 6, 278 (DOI: 10.1039/b716325h) Needles and clusters of zinc porphyrin molecules on mica H George, RE Palmer, Q Guo, N Bampos, JKM Sanders – Surface Science (2006) 600, 3274 (DOI: 10.1016/j.susc.2006.06.021) A chemically switchable molecular pinwheel. OP Vaughan, FJ Williams, N Bampos, RM Lambert – Angew Chem Int Ed Engl (2006) 45, 3779 (DOI: 10.1002/anie.200600683) Gel-phase HR-MAS H-1 NMR spectroscopy as a probe for solid-tethered diimide rotaxanes and catenanes KD Johnstone, N Bampos, JKM Sanders, MJ Gunter – New Journal of Chemistry (2006) 30, 861 (DOI: 10.1039/b602555b) Giant contrast reversal in scanning tunnelling microscopy of zincporphyrin monolayers on graphite Q Guo, J Yin, RE Palmer, N Bampos, JKM Sanders – Chemical Physics Letters (2005) 402, 121 (DOI: 10.1016/j.cplett.2004.12.007) First observation of capping/uncapping by a ligand of a Zn porphyrin adsorbed on Ag(100). OPH Vaughan, FJ Williams, KJ Knox, N Bampos, RM Lambert – ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY (2004) 228, U471 First observation of capping/uncapping by a ligand of a Zn porphyrin adsorbed on Ag(100). FJ Williams, OP Vaughan, KJ Knox, N Bampos, RM Lambert – Chemical communications (Cambridge, England) (2004) 10, 1688 (DOI: 10.1039/b407374f) Solid state C-13 CP MAS NMR study of molecular motions and interactions of urea adsorbed on cotton cellulose JH Kristensen, N Bampos, M Duer – Physical Chemistry Chemical Physics (2004) 6, 3175 (DOI: 10.1039/b403537b) Synthesis and characterization of carboxylate complexes of Sn(IV) porphyrin monomers and oligomers. JC Hawley, N Bampos, JK Sanders – Chemistry (2003) 9, 5211 (DOI: 10.1002/chem.200304862) Liquid phase deposition of supramolecular monolayers of zinc porphyrin molecules on graphite Q Guo, J Yin, F Yin, RE Palmer, N Bampos, JKM Sanders – Journal of Physics: Condensed Matter (2003) 15, S3127 (DOI: 10.1088/0953-8984/15/42/010) Growth of densely packed gold nanoparticles on graphite using molecular templates QM Guo, P Fallon, JL Yin, RE Palmer, N Bampos, JM Sanders – Advanced Materials (2003) 15, 1084 (DOI: 10.1002/adma.200304938) Supramolecular monolayers of zinc porphyrin trimers on graphite I Yin, Q Guo, RE Palmer, N Bampos, JKM Sanders – The Journal of Physical Chemistry B (2003) 107, 209 (DOI: 10.1021/jp026490u) A self-assembling polymer-bound rotaxane under thermodynamic control. KD Johnstone, N Bampos, JK Sanders, MJ Gunter – Chemical communications (Cambridge, England) (2003) 9, 1396 (DOI: 10.1039/b302071a)