研究领域

Solid state chemistry and chemical crystallography, crystal Engineering.Structures and modify the properties of crystalline solids through controlled design of their internal structure or architecture. A variety of methods of synthesis are used including solvothermal and flux approaches. Areas range from organic crystals (including natural products, co-crystals, N-H-O hydrogen bonds, pharmaceutical formulation, chiral determination and resolution) to metal-organic network polymers and inorganic and hybrid framework crystals.

Solid state chemistry and chemical crystallography Crystal Engineering Dr Williams’ research aims to expore the structures and modify the properties of crystalline solids through controlled design of their internal structure or architecture. A variety of methods of synthesis are used including solvothermal and flux approaches. Areas range from organic crystals (including natural products, co-crystals, N-H-O hydrogen bonds, pharmaceutical formulation, chiral determination and resolution) to metal-organic network polymers and inorganic and hybrid framework crystals.

近期论文

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""Controlled Hydrothermal Growth and enhanced Up-conversion Emission of NaLnF4 (Ln =Y, Dy-Yb)"" Inorganic Chemistry 46(13): 5404-5410 (2007). ""Short N ... O hydrogen bonds in the 1:1 adduct of 4,4 '-bipyridyl and oxalic acid"" Acta Crystallographica Section E-Structure Reports Online 63: o1240-o1242 (2007). ""Antibacterial diterpenoids from Sagittaria pygmaea"" Planta Medica 73(1): 84-90 (2007). ""Effect of 2,6-disubstituted Aryl Groups on Acyclic Conformation: Preference for an Antiperiplanar Orientation of the Geminal and Vicinal Hydrogens"" Journal of Organic Chemistry 71, 8835-8841 (2006). ""Neutron diffraction studies of the 1 : 1 and 2 : 1 cocrystals of benzene-1,2,4,5-tetracarboxylic acid and 4,4 '-bipyridine"" Acta Crystallographica Section C -Crystal Structure Communications 62: o157-o161 (2006) ""Hydrothermal Synthesis of Indium Tartrates: Structures of the Chiral Polymer [In(L-TAR)3-H2O] 0.5H2O containing the Tartrate Trianion, and a Microporous Hybrid Solid [In(OH)(D/L-TAR)2-]2H2O"" Inorg.Chem.Commun. 9,507-511 (2006). ""Ent-rosane and Labdane Diterpenoids from Sagittaria sagittifolia with Anti-bacterial Activity against Three Oral Pathogens"" J. Natural Products 69(2): 255-260 (2006). ""Variable-Temperature Neutron Diffraction Studies of the Short, Strong Hydrogen Bonds in the Crystal Structure of Pyridine-3,5-Dicarboxylic Acid"" Acta Crystallographica Sect. B-Structural Sci 61: 724-730 Part 6, DEC 2005. ""Microporous Chiral Metal Coordination Polymers: Hydrothermal Synthesis, Channel Engineering and Stability of Lanthanide Tartrates"" Chemical Communications, 5515-5517 (2005). ""Cytotoxic diterpenoids from the roots of Euphorbia ebracteolata"" Planta Medica, (2005) 71 (4): 349-354 Apr 2005 ""Synthesis of Elliptical Vanadoborates housing Bimetallic Centers [Zn4(B2O4H2)(V10B28O74H8)](8-) and [Mn4(C2O4)(V10B28O74H8)](10-)"" Chemical Communications (14): 1827-1829 (2005). ""Variable-temperature Neutron Diffraction Studies of the Short, Strong N...O Hydrogen Bonds in the 1:2 Co-crystal of Benzene-1,2,4,5-tetracarboxylic acid and 4,4'-Bipyridyl""Acta Crystallographica Section B-Structural Science 59: 794-801 (2003). ""Physical Stability versus Chemical Lability in Microporous Metal Coordination Polymers"" Chemical Communications (15): 1642-1643 (2002) ""Hydrothermal Synthesis of three new 3-D Framework Rare-earth Mellitates"" Inorg. Chem. Commun. 4, 467-470 (2001). ""A Templated Borate Polymer from Boric Acid Flux Synthesis, [Cu(en)2(B7O13H3)]"" Inorg. Chem. Commun. 3, 401-404 (2000). ""Solvothermal Synthesis of a Stable Coordination Polymer with Copper-I-Copper-II Dimer Units: [Cu4{1,4-C6H4(COO)2}3(4,4’-bipy)2]n"" J. Amer Chem. Soc. 122, 6293-6294 (2000). ""Cooperative Magnetic Behavior in the Coordination Polymers [Cu3(TMA)2L3]"" J. Appl. Phys. 87, 6007-6009 (2000). ""A Chemically Functionalizable Nanoporous Material [Cu3(TMA)2(H2O)3]n"" Science 283, 1148-1150 (1999). ""A Metal Rich Fluorinated Indium Phosphate with 14 Membered Ring Cavities 4[pnH2]3[H3O][In9(PO4)6(HPO4)2F16]3[H2O]"" Chem. Mater. 10, 773-776 (1998). ""An Organo templated Vanadium Borate Polymer from Molten Boric Acid Flux Synthesis 4[enH]2[enH2][V6B22O53H8] "" Chem. Commun., 2463-2464 (1998).