Imperial College London

PROFESSOR CHARLOTTE K. WILLIAMS

Faculty of Natural SciencesDepartment of Chemistry

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 5790c.k.williams Website

 
 
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Location

 

317 RCS1ChemistrySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

157 results found

Wells TP, Hallett JP, Williams CK, Welton Tet al., 2008, Esterification in ionic liquids: The influence of solvent basicity, JOURNAL OF ORGANIC CHEMISTRY, Vol: 73, Pages: 5585-5588, ISSN: 0022-3263

JOURNAL ARTICLE

Wells TP, Hallett JP, Williams CK, Welton Tet al., 2008, Esterification in ionic liquids: The influence of solvent basicity, Pages: 103-106, ISSN: 1938-5862

The rate of esterification is reported in a range of ionic and molecular solvents. The effects of solvent on esterification rate are examined by using a linear solvation energy relationship based on the Kamlet-Taft solvent polarity descriptors (α, β, and π*). It is shown that the basicity (β) of the solvent is the major factor in determining esterification rate and that the highest rates are observed in low basicity solvents. ©The Electrochemical Society.

CONFERENCE PAPER

Westenhoff S, Howard IA, Hodgkiss JM, Kirov KR, Bronstein HA, Williams CK, Greenham NC, Friend RHet al., 2008, Charge recombination in organic photovoltaic devices with high open-circuit voltages, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 130, Pages: 13653-13658, ISSN: 0002-7863

JOURNAL ARTICLE

Williams CK, Hillmyer MA, 2008, Polymers from renewable resources: A perspective for a special issue of polymer reviews, POLYMER REVIEWS, Vol: 48, Pages: 1-10, ISSN: 1558-3724

JOURNAL ARTICLE

Haider AF, Williams CK, 2007, Application of dichlorovinyl xyloside for the novel synthesis of 2,3,4-tri-O-methyl-D-xylono-1,5-lactone, JOURNAL OF CARBOHYDRATE CHEMISTRY, Vol: 26, Pages: 411-418, ISSN: 0732-8303

JOURNAL ARTICLE

Platel RH, Hodgson LM, White AJP, Williams CKet al., 2007, Synthesis and characterization of a series of bis(oxo/thiophosphinic)diamido yttrium complexes and their application as initiators for lactide ring-opening polymerization, ORGANOMETALLICS, Vol: 26, Pages: 4955-4963, ISSN: 0276-7333

JOURNAL ARTICLE

Watkins SE, Chan KL, Cho SY, Evans NR, Grimsdale AC, Holmes AB, Mak CSK, Sandee AJ, Williams CKet al., 2007, Synthesis of host polymers and guests for electrophosphoreseence, IUPAC International Symposium on Advanced Polymers for Emerging Technologies, Publisher: POLYMER SOC KOREA, Pages: 129-133, ISSN: 1598-5032

CONFERENCE PAPER

Williams CK, 2007, Synthesis of functionalized biodegradable polyesters, CHEMICAL SOCIETY REVIEWS, Vol: 36, Pages: 1573-1580, ISSN: 0306-0012

JOURNAL ARTICLE

Williams CK, White AJP, 2007, An amido lithium tetra-zinc oxo complex: Synthesis and X-ray crystal structure of (mu(4)-oxo)-pentakis(mu(2)-diethylamido)-bis(N(ethyl)CHCH2)-lithium-tetrazinc, JOURNAL OF ORGANOMETALLIC CHEMISTRY, Vol: 692, Pages: 912-916, ISSN: 0022-328X

JOURNAL ARTICLE

Williams CK, White AJP, 2007, An amido lithium tetra-zinc oxo complex: Synthesis and X-ray crystal structure of (μ<inf>4</inf>-oxo)-pentakis(μ<inf>2</inf>-diethylamido)-bis(N(ethyl)CHCH<inf>2</inf>)-lithium-tetrazinc, Journal of Organometallic Chemistry, Vol: 692, Pages: 912-916, ISSN: 0022-328X

The synthesis of an unusual cyclometallated amido lithium-tetra-zinc complex, (μ4-oxo)-pentakis(μ2-diethylamido)-bis(N(ethyl)CHCH2)-lithium-tetrazinc, was achieved in reasonable yield by the reaction of zinc chloride and lithium diethylamide. The new complex was characterised and an X-ray crystal structure was reported. © 2006 Elsevier B.V. All rights reserved.

JOURNAL ARTICLE

Breyfogle LE, Williams CK, Young VG, Hillmyer MA, Tolman WBet al., 2006, Comparison of structurally analogous Zn-2, Co-2, and Mg-2 catalysts for the polymerization of cyclic esters, DALTON TRANSACTIONS, Pages: 928-936, ISSN: 1477-9226

JOURNAL ARTICLE

Evans NR, Devi LS, Mak CSK, Watkins SE, Pascu SI, Koehler A, Friend RH, Williams CK, Holmes ABet al., 2006, Triplet energy back transfer in conjugated polymers with pendant phosphorescent iridium complexes, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 128, Pages: 6647-6656, ISSN: 0002-7863

JOURNAL ARTICLE

Hodgson LM, White AJP, Williams CK, 2006, Yttrium(III) complex as a highly active catalyst for lactide polymerization, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Vol: 44, Pages: 6646-6651, ISSN: 0887-624X

JOURNAL ARTICLE

Hodgson LM, Williams CK, 2006, INOR 372-Yttrium(III) bis(thiophosphinic amide) complexes: Highly active and controlled catalysts for lactide polymerization, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 232, ISSN: 0065-7727

JOURNAL ARTICLE

Ragauskas AJ, Williams CK, Davison BH, Britovsek G, Cairney J, Eckert CA, Frederick WJ, Hallett JP, Leak DJ, Liotta CL, Mielenz JR, Murphy R, Templer R, Tschaplinski Tet al., 2006, The path forward for biofuels and biomaterials, SCIENCE, Vol: 311, Pages: 484-489, ISSN: 0036-8075

JOURNAL ARTICLE

Williams CK, 2006, INOR 1000-Yttrium(III) complexes: Highly active catalysts for ring opening polymerizations, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 232, ISSN: 0065-7727

JOURNAL ARTICLE

Cass ME, Rzepa HS, Rzepa DR, Williams CKet al., 2005, The use of the free, open-source program Jmol to generate an interactive web site to teach molecular symmetry, JOURNAL OF CHEMICAL EDUCATION, Vol: 82, Pages: 1736-1740, ISSN: 0021-9584

JOURNAL ARTICLE

Cass ME, Rzepa HS, Rzepa DR, Williams CKet al., 2005, An animated interactive overview of molecular symmetry, Journal of Chemical Education, Vol: 82, Pages: 1742-1743, ISSN: 0021-9584

An Animated Interactive Overview of Molecular Symmetry is a series of Web pages designed to help instructors teach molecular symmetry. The pages combine interactive images and instructional text that allow students to examine and explore the operations and elements that give rise to molecular symmetry. The Overview pages first illustrate what is and what is not a symmetry operation, and what constitutes a symmetry element versus a symmetry operation. Subsequent pages include Student Exercises, Extra Problems, Tutorial exercises, and Animated Vibrational Modes. Molecular animations of symmetry operations illustrate proper rotations, improper rotations, reflections, and inversion.

JOURNAL ARTICLE

Holmes AB, Chan KL, Evans NR, Mak CSK, Watkins SE, Williams CK, Boothby CE, Friend RH, Koehler A, Hayer A, Devi LSet al., 2005, Harnessing triplet emission in polymer leds., 229th National Meeting of the American-Chemical-Society, Publisher: AMER CHEMICAL SOC, Pages: U380-U380, ISSN: 0065-7727

CONFERENCE PAPER

Mak CSK, Watkins SE, Williams CK, Evans NR, Chan KL, Cho SY, Holmes AB, Boothby CE, Friend RH, Hayer A, Kohler Aet al., 2005, New light emitting polymers and high energy hosts for triplet emission, Symposium on Organic and Nanocomposite Optical Materials held at the 2004 MRS Fall Meeting, Publisher: MATERIALS RESEARCH SOCIETY, Pages: 165-170, ISSN: 0272-9172

CONFERENCE PAPER

Sandee AJ, Evans NE, Williams CK, Holmes AB, Koehler ABet al., 2005, Solution-processable phosphorescent materials, WO03091355

PATENT

Gibson VC, Long NJ, Long RJ, White AJP, Williams CK, Williams DJ, Grigiotti E, Zanello Pet al., 2004, Synthesis, characterization, and metal complexation of unsymmetrical 1,1 '-bis(organylthiolato)ferrocenes, ORGANOMETALLICS, Vol: 23, Pages: 957-967, ISSN: 0276-7333

JOURNAL ARTICLE

Mak CSK, Evans NR, Watkins SE, Williams CK, Holmes AB, Boothby CE, Kohler A, Friend RHet al., 2004, Singlet and triplet emission from polymers for OLED applications, 8th Conference on Organic Light-Emitting Materials and Devices, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 24-34, ISSN: 0277-786X

CONFERENCE PAPER

Sandee AJ, Williams CK, Evans NR, Davies JE, Boothby CE, Kohler A, Friend RH, Holmes ABet al., 2004, Solution-processible conjugated electrophosphorescent polymers, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 126, Pages: 7041-7048, ISSN: 0002-7863

JOURNAL ARTICLE

Breyfogle LE, Williams CK, Choi SK, Nam WW, Young VG, Hillmyer MA, Tolman WBet al., 2003, Highly active zinc catalyst for the controlled polymerization of lactide (Meeting abstract INOR-519), ISSN: 0065-7727

CONFERENCE PAPER

Gibson VC, Long NJ, Williams CK, Fontani M, Zanello Pet al., 2003, New unsymmetrical thioether- and thiolate-substituted ferrocenediyl ligands and their metal complexes, DALTON TRANSACTIONS, Pages: 3599-3605, ISSN: 1477-9226

JOURNAL ARTICLE

Long NJ, Williams CK, 2003, Metal alkynyl sigma complexes: Synthesis and materials, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol: 42, Pages: 2586-2617, ISSN: 1433-7851

JOURNAL ARTICLE

Williams CK, Breyfogle LE, Choi SK, Nam W, Young VG, Hillmyer MA, Tolman WBet al., 2003, A highly active zinc catalyst for the controlled polymerization of lactide, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 125, Pages: 11350-11359, ISSN: 0002-7863

JOURNAL ARTICLE

Gibson VC, Long NJ, White AJP, Williams CK, Williams DJet al., 2002, The synthesis and metal coordination chemistry of a novel phosphine- and thiolate-substituted ferrocenediyl ligand, ORGANOMETALLICS, Vol: 21, Pages: 770-772, ISSN: 0276-7333

JOURNAL ARTICLE

Gibson VC, Long NJ, White AJP, Williams CK, Williams DJ, Fontani M, Zanello Pet al., 2002, Synthesis, characterisation and catalytic activity of metal complexes of neutral, unsymmetrical P/S ferrocenediyl ligands, JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, Pages: 3280-3289, ISSN: 1472-7773

JOURNAL ARTICLE

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