A5102827154- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Organometallic Compounds Synthesis and Characterization
- Inorganic Chemistry and Materials
- Crystallography and molecular interactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Crystal structures of chemical compounds
- Metal complexes synthesis and properties
- Forensic Fingerprint Detection Methods
- Organoselenium and organotellurium chemistry
- Sulfur-Based Synthesis Techniques
- Forensic and Genetic Research
- Ferrocene Chemistry and Applications
- Chemical Thermodynamics and Molecular Structure
- Inorganic Fluorides and Related Compounds
- Crystal Structures and Properties
- Magnetism in coordination complexes
- Chemical Synthesis and Reactions
- Organic Chemistry Cycloaddition Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Catalysis and Oxidation Reactions
- Mass Spectrometry Techniques and Applications
- Inorganic and Organometallic Chemistry
- Analytic Number Theory Research
Loughborough University
2014-2024
Foster + Freeman (United Kingdom)
2021
London South Bank University
2021
University of Calgary
2005
University of Oulu
2005
Finland University
2005
Université Paris-Sud
2001
Centre National de la Recherche Scientifique
2001
Imperial College London
1986-1994
University of Warwick
1990
A seventh blind test of crystal structure prediction was organized by the Cambridge Crystallographic Data Centre featuring seven target systems varying complexity: a silicon and iodine-containing molecule, copper coordination complex, near-rigid cocrystal, polymorphic small agrochemical, highly flexible drug candidate, morpholine salt. In this first two parts focusing on generation methods, many (CSP) methods performed well for but agrochemical compound, successfully reproducing...
A seventh blind test of crystal structure prediction has been organized by the Cambridge Crystallographic Data Centre. The results are presented in two parts, with this second part focusing on methods for ranking structures order stability. exercise involved standardized sets seeded from a range generation methods. Participants 22 groups applied several periodic DFT-D methods, machine learned potentials, force fields derived empirical data or quantum chemical calculations, and various...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelenoether Macrocyclic Chemistry: Syntheses, NMR Studies, Redox Properties, and Single-Crystal Structures of [M([16]aneSe4)](PF6)2.cntdot.2MeCN (M = Pd, Pt; [16]aneSe4 1,5,9,13-Tetraselenacyclohexadecane)Neil R. Champness, Paul F. Kelly, William Levason, Gillian Reid, Alexandra M. Z. Slawin, David J. WilliamsCite this: Inorg. Chem. 1995, 34, 3, 651–657Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published...
Reaction of a solution CuSO4 and S,S′-diphenylsulfimide, Ph2SNH 1, with sodium salts trimesic acid (H3tma) in MeOH gives the 2-D coordination network [Cu3(Ph2SNH)6(tma)2] which each trimesate is bound to three copper centres. Addition other solvents reaction mixture causes change shape network. By this route, forms have been prepared characterised by X-ray crystallography. These include known honeycomb, 2, brick-wall, 3, motifs herringbone, 4, arrangement novel for transition...
Latent fingerprints at crime scenes are frequently recovered using forensic gel-lifters, which can help to preserve the scene and enhance visualisation of traces such as blood or paint. In addition providing fingerprint ridge detail, additional chemical information also be from gel lifts that may prove pertinent an investigation. However, while DNA metal ions have been shown able detected in gel-lifted fingerprints, determination other types presence drugs prints has not previously shown....
Pt(IV)-mediated addition of the sulfimide Ph2SNH and mixed sulfide/sulfimides o- p-{PhS(NH)}(PhS)C6H4 by SNH group to metal-bound nitriles in platinum(IV) complexes [PtCl4(RCN)2] proceeds smoothly at room temperature CH2Cl2 results formation heterodiazadiene compounds [PtCl4{NHC(R)NSR'Ph}2] (R' = Ph, R Me, Et, CH2Ph, Ph; R' p-(PhS)C6H4; Et). While trans-[PtCl4(RCN)2] (R Ph) reacting with leads exclusively trans-[PtCl4{NHC(R)NSPh2}2], cis/trans-[PtCl4(MeCN)2] cis/trans mixtures...
Exposure of fingerprints to S(2)N(2) vapour results in the prints being visually imaged by polymeric (SN)(x) on an unprecedented range media; addition, polymer forms response interaction with traces inkjet inks, for example minute amounts left contact between printed paper and envelope.
Reaction of Me3SiNSNSNSNSiMe3 with [PPh4]2[Pd2Cl6] resulted in a mixture [PPh4][PdCl2(S2N3)] and [PPh4]2[Pd2Cl4(S3N2)]; addition to the analogous bromo species, reaction [PPh4]2[Pd2Br6] also generated [PPh4]2[Pd2Br6(S2N2)]. The crystal structure [PPh4][PdBr2(S2N3)], only second full characterization complex [S2N3]–, confirmed presence two distinct S–N bond lengths (1.49 1.6 Å), while 15N NMR spectrum partially 15N-labelled confirms absence protonation on ligand. Potential mechanisms for...
A new method utilising an <italic>in situ</italic> sampling probe coupled with mass spectrometry for rapid identification and age estimation of biofluids.
Polymerisation of S2N2 to (SN)x on metallic surfaces is induced by interaction with the minute corrosion signatures removed (by washing) fingerprints; as vapour-phase employed, it follows that process has potential rapidly screen large/convoluted metal pieces, such explosive device fragments whose prints were wiped detonation.
Reaction of cis-PtCl2(PMe3)2 with [Me2Sn(S2N2)]2 and [NH4][PF6] in dichloromethane gives [Pt(S2N2H)(PMe3)2][PF6], (1), or alternatively protonation [Pt(S2N2)(PMe2Ph)2] yields [Pt(S2N2H)(PMe2Ph)2][BF4],(2); the crystal structures (1) (2) reveal that planar cations stack significant close interactions.
Residual traces of the metals copper and lead on an individual's skin may be elucidated by reaction rubeanic acid with a gelatine lift taken from target area in question, yielding intensely coloured products. This non-invasive technique has been shown to offer promise chemically mapping distribution minute metal residues across hand deposited through touching items, potential forensic significance.
P. F. Kelly, A. M. Z. Slawin and K. W. Waring, J. Chem. Soc., Dalton Trans., 1997, 2853 DOI: 10.1039/A704276K
Aqueous molybdenum(VI) has been studied between pH 6 and 1.2 by 17O 95Mo n.m.r. spectroscopy. Heptamolybdate, [Mo7O24]6–, its monoprotonated form, β-octamolybdate, [Mo8O26]4, are clearly identified, evidence also found for an intermediate species [H3Mo8O28]5–. The protonation site of heptamolybdate kinetic structural data have correlated to yield a scheme the transformation octamolybdate upon acidification.
Reaction of Na(S3N3) with [MCl2(PR3)2](M = Pt, PR3= PMe3, PMe2Ph, PMePh2, PPh3, PEt3, PPrn3, PBun3 or ½Ph2PCH2CH2PPh2; M Pd, PR3=½Ph2PCH2CH2PPh2) gives complexes the type [M(S2N2)(PR3)2] in high yield (quantitatively by 31P n.m.r. > 60% isolated). The identity was established n.m.r., i.r., microanalysis and, case [Pt(S2N2)(PMe3)2], X-ray crystallography.
Abstract The new nonsymmetric ditertiary phosphane, Ph 2 P(CH ) PAd ( 1 ), was prepared in one‐step from PCH=CH andH‐PAd (H‐PAd = 1,3,5,7‐tetramethyl‐2,4,8‐trioxa‐6‐phosphaadamantane) by a hydrophosphination reaction using 2,2′‐azo‐bisisobutyronitrile (AIBN) as free radical initiator. sterically encumbered phosphaadamantane cage found to influence the coordination capabilities of this ligand. with [PdCl (cod)] or [Pt(CH 3 (cod cycloocta‐1,5‐diene) gave corresponding κ ‐ P,P′ ‐chelate...
In contrast to similar reactions of Cu, Co and Pd species, the platinum(II) complex [Pt(MeCN)2Cl2] reacts with Ph2SNH (ratio 1:2) in MeCN via a metal assisted addition sulfimide acetonitrile give [Pt(Ph2SNH)(Ph2SNC(Me)NH)Cl]Cl·MeCN, first example bidentate [Ph2SNC(Me)N(H)] ligand.