A5076058516- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Organometallic Complex Synthesis and Catalysis
- Advanced Thermoelectric Materials and Devices
- Coordination Chemistry and Organometallics
- Catalytic Cross-Coupling Reactions
- Copper Interconnects and Reliability
- Thermal properties of materials
- Magnetism in coordination complexes
- biodegradable polymer synthesis and properties
- Thermal Radiation and Cooling Technologies
- Synthetic Organic Chemistry Methods
- Silicon Nanostructures and Photoluminescence
- 2D Materials and Applications
- Topological Materials and Phenomena
- Nanowire Synthesis and Applications
- ZnO doping and properties
- Carbon dioxide utilization in catalysis
- Advanced Polymer Synthesis and Characterization
- Semiconductor materials and interfaces
- Advanced Thermodynamics and Statistical Mechanics
- Electrodeposition and Electroless Coatings
- Cyclopropane Reaction Mechanisms
- Corrosion Behavior and Inhibition
University of Southampton
2018-2020
University of Bath
2002-2017
University of Warwick
2008
Heriot-Watt University
2002
The stoichiometric reaction between thiols and maleimide-functional poly(ester)s is demonstrated to be a quantitative, tolerant, mild efficient method for polymer modification.
Thermolysis of Ru(PPh3)3(CO)H2 with the N-heterocyclic carbene bis(1,3-(2,4,6-trimethylphenyl)imidazol-2-ylidene) (IMes) results in C-C activation an Ar-CH3 bond one mesityl rings ligand. Upon addition IMes to at room temperature presence alkene, C-H is observed instead. The thermodynamics these and cleavage reactions have been probed using density functional theory.
Two unprecedented hydrogen bonds were observed in the adducts obtained by reactions of an N-heterocyclic carbene with a bulky phenol and diphenylamine. In former case, proton transfer yields imidazolium aryloxide (1) containing shortest C−H⋅⋅⋅O interaction seen to date latter, atom remains bound organic acid but forms unique N−H⋅⋅⋅C bond (2).
A homologous and homoleptic series of stable Group 11 metal triazenide complexes with the general formula [M(L')](n) (M = Cu or Au, n 2; M Ag, 3) featuring bulky ligand N,N'-bis(2,6-di-isopropylphenyl)triazene, L'H, have been prepared by reaction Li[L'] chlorides, CuCl, AgCl, [(THT)AuCl], respectively, in a 1:1 stoichiometric ratio. The compounds [Cu(2)(L')(2)] [Au(2)(L')(2)] crystallized as dimers M...M separations 2.4458(4) 2.6762(4) A, respectively. In comparison, AgCl results formation...
A series of multinuclear Copper(I) guanidinate complexes have been synthesized in a succession reactions between CuCl and the lithium systems Li{L} (L = Me2NC(iPrN)2 (1a), Me2NC(CyN)2 (1b), Me2NC(tBuN)2(1c), Me2NC(DipN)2 (2d) (iPr iso-propyl, Cy cyclohexyl, tBu tert-butyl, Dip 2,6-disopropylphenyl) made situ, structurally characterized. The di-copper guanidinates with general formula [Cu2{L}2] {Me2NC(iPrN)2} (2a), {Me2NC(CyN)2} (2b), {Me2NC(DipN)2} differed significantly from related...
Reaction of Al(OiPr)3 with the tris-phenol amine ligand L1H3 in toluene at ambient temperature results formation iso-propanol adduct [HOiPr·Al(L1)]. Single crystal X-ray diffraction analysis reveals structure to be a hydrogen bonded dimer. (or AlMe3) THF affords related, and structurally characterised adduct, [THF·Al(L1)]. Similar reaction bis-phenol tetra-phenol diamine ligands, L2H3 L3H4, isolation complexes [Al(L2)]2 [Al(L3)H] respectively, both which have been viasingle studies. alkoxide...
We report the synthesis and characterization of a family organometallic cobalt(I) metal precursors based around cyclopentadienyl diene ligands. The molecular structures complexes cyclopentadienyl-cobalt(I) diolefin are described, as determined by single-crystal X-ray diffraction analysis. Thermogravimetric analysis thermal stability studies highlighted isoprene, dimethyl butadiene, cyclohexadiene derivatives [(C5H5)Co(η(4)-CH2CHC(Me)CH2)] (1), [(C5H5)Co(η(4)-CH2C(Me)C(Me)CH2)] (2),...
Ungewöhnliche Wasserstoffbrücken wurden bei den Addukten beobachtet, die aus einem sterisch anspruchsvollen N-heterocyclischen Carben mit Phenol und Diarylamin erhalten wurden. Im ersten Fall – hier wird das protoniert enthält Addukt 1 bislang kürzeste C−H⋅⋅⋅O-Brücke; im zweiten entsteht kein Ionenpaar, sondern neutrale Carben-Amin-Addukt 2 einer einzigartigen N−H⋅⋅⋅C-Brücke.
Micro-thermoelectric generators are attractive for autonomous sensor systems. This work reports an approach fabricating thin film micro-thermoelectric via selective chemical vapor deposition. The utilizes our single-source precursors, which enable the production of high-quality thermoelectric materials, as exemplified by Sb2Te3 in this work. It also allows great control over properties as-deposited simply varying deposition temperature. A competitive power factor 16.5 μW/(cm·K2) can be...
[MCl<sub>3</sub>(E<sup>n</sup>Bu<sub>2</sub>)<sub>3</sub>] (M = Sb, Bi; E Se, Te) enable CVD growth of ternary Bi<sub>2</sub>(Se<sub>1−x</sub>Te<sub>x</sub>)<sub>3</sub> and (Bi<sub>1−y</sub>Sb<sub>y</sub>)<sub>2</sub>Te<sub>3</sub> thin films with good compositional, structural morphological control.
Abstract The thriving of the Internet Things is set to increase demand for low-power wireless sensing devices. Thin-film thermoelectric generators are ideal as a sustainable power source devices they allow low maintenance and energy autonomy. This work presents model estimate performance thin-film generator. Verified by finite-element method simulation, results from show that increasing interconnect electrical conductivity reducing device pitch increases density. density can also be...
We report here a synthetic route to bis(N,N′-aryl)-6-aminofulvene-2-aldimine (AFA) ligand systems, specifically Ph2-AFAH and Dip2-AFAH. The synthesis structural characterization of series Cu(I) complexes [(Ph2-AFA)Cu(CNPh)2] (2), [(Ph2-AFA)Cu(CNiPr)] (3), [(Dip2-AFA)Cu(CNiPr)] (4), from the reaction corresponding lithiated AFA systems with Cu−Cl derivatives are reported; notably in case studies have revealed existence two isomers (2a 2b), both which can be isolated structurally...
A series of unsymmetrical nickel β‐diketonate derivatives have been synthesised and structurally characterised for application as atmospheric‐pressure metal–organic chemical vapour deposition (AP‐MOCVD) precursors oxide. (TMEDA)Ni[MeC(O)CHC(O)OEt] 2 (TMEDA = tetramethylethylenediamine) was selected used to deposit NiO films varying thickness onto commercial indium tin oxide (ITO)‐coated glass; the work function ITO raised a consequence.
Abstract Novel processes were developed for fabricating silicon nanocrystals and nanocomposite materials which could be used as absorbers in third generation photovoltaic devices. A conventional high‐temperature annealing technique was studied a reference process, with some new insights crystallisation mechanisms. Innovative methods nanocrystal synthesis at much lower temperature demonstrated, namely chemical vapour deposition (CVD), physical (PVD) aerosol‐assisted CVD. Besides the advantage...
We report the synthesis and characterisation of a new family copper(I) metal precursors based around alkoxy-N,N′-di-alkyl-ureate ligands, their subsequent application in production pure copper thin films. The molecular structure complexes bis-copper(I)(methoxy-N,N′-di-isopropylureate) (1) bis-copper(I)(methoxy-N,N′-di-cyclohexylureate)(5) are described, as determined by single crystal X-ray diffraction analysis. Thermogravimetric analysis highlighted complex 1 possible CVD precursor. Low...