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Zhaofu Fei

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Publications associées (133)

Ionic solid-state dimers and polymers derived from imidazolium dicarboxylic acids

Rosario Scopelliti, Paul Joseph Dyson, Zhaofu Fei, Wee Han Ang

A series of imidazolium dicarboxylic acids have been prepd. from the reaction of the 1,3-bis(carboxymethyl)imidazolium zwitterion with the Bronsted acids HX (X = F, Br, Cl, ClO4). The structures of these acids have been established in the solid ...

2006

Remarkable Anion and Cation Effects on Stille Reactions in Functionalised Ionic Liquids

Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei, Cinzia Chiappe

Task-specific ionic liquids bearing nitrile functional groups attached to the cation and nitrogen-donor-containing anions strongly affect the efficiency of the Stille cross-coupling, influencing the nature of the catalyst and its stability. The relative st ...

Wiley2006

Complexation associated rearrangement of iminobiphosphines to diphosphinoamines

Rosario Scopelliti, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei, Wee Han Ang

The reaction of the iminobiphosphines RN[dbnd]>PPh2-PPh2, where R = C6H4(p-CN), C6H4(m-CN), C6H4(o-C6H5), C6F5 or C6

2006

Metal-Organic Frameworks Derived from Imidazolium Dicarboxylates and Group I and II Salts

Rosario Scopelliti, Paul Joseph Dyson, Zhaofu Fei

A series of coordination polymers contg. Group I or II metal ions, connected via an imidazolium-centered dicarboxylate ligand, have been isolated from water and characterized by single crystal X-ray diffraction. All the structures incorporate water mols. t ...

2006

A Supercooled Imidazolium Iodide Ionic Liquid as a Low-Viscosity Electrolyte for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei, Wee Han Ang

A series of allyl-functionalized imidazolium salts are reported, including 1-allyl-3-ethylimidazolium iodide and 1-allyl-3-propylimidazolium iodide, which have m.ps. close to room temp. and show typical properties of supercooled fluids if heated above thei ...

2006

Influence of Ionic Liquids Bearing Functional Groups in Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

Ionic liquids containing the nitrile and vinyl functional groups attached to imidazolium cations combined with various anions, e.g., iodide, bis[(trifluoromethyl)sulfonyl]imide ([TFSI]-), or dicyanamide ([N(CN)2]-), have been prepared and characterized. Th ...

2006

From dysfunction to bis-function: on the design and applications of functionalised ionic liquids

Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

Some of the recent developments concerning the synthesis, properties and applications of functionalised ionic liqs. are highlighted. Various strategies are presented, including functionalisation of the cation, anion or both cation and anion in the same ion ...

2006

Ionic liquids based on imidazolium salts incorporating a nitrile functionality

Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

Novel chemical compounds of the general formula KA, in which K is a 5- or 6- membered heterocyclic ring having 1-3 hetereo atoms, which can be independently N, S, or 0 with the proviso that at least one of the hetereo atoms must be a quaternized n ...

2005

A nearly planar water sheet sandwiched between strontium-imidazolium carboxylate coordination polymers

Rosario Scopelliti, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

The crystal structure of a strontium-imidazolium polymeric material obtained from the reaction of zwitterionic 1,3-bis(carboxymethyl)-imidazolium with SrCO3 (2:1) in water is reported. The compound crystallized in the orthorhombic space group Pcc2 with a = ...

2005

Allyl-functionalised ionic liquids: Synthesis, characterisation, and reactivity

Gabor Laurenczy, Rosario Scopelliti, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

The two known Me- and allyl-substituted 1H-imidazol-3-ium bromides 1 and 2, respectively, were converted to the corresponding BF4- and BPh4- salts 3-6 (Scheme 1). Compounds 3 and 4 were liquids at ambient temperature. Reaction of 1 or 2 with [PdCl2] afford ...

2005

Structure of nitrile-functionalized alkyltrifluoroborate salts

Rosario Scopelliti, Paul Joseph Dyson, Dongbin Zhao, Zhaofu Fei

Two nitrile-functionalized alkyltriflouroborate anion based complexes [(Ph3P)(2)N][CH3CH(BF3)CH2CN] and [K(18-crown-6)][CH3CH(BF3)CH2CN] were synthesized and characterized by spectroscopic methods and single X-ray diffraction analysis. In the former comple ...

2005

NMR, PGSE diffusion, and X-ray diffraction studies of lithium and potassium salts derived from diphenylphosphino(o-cyanophenyl)aniline and their crown ether complexes

Paul Joseph Dyson, Zhaofu Fei

H-1, P-31, and Li-7 pulsed-gradient spin-echo (PGSE) diffusion and variable-temperature NMR results for THF solutions of the lithium and potassium salts derived from diphenylphosphino(o-cyanophenyl)aniline are reported and compared to the solid-state resul ...

2005

The chemistry of phosphinoamides and related compounds

Paul Joseph Dyson, Zhaofu Fei

This review commences with a survey of the general synthetic routes leading to aminophosphines containing the P-NH subgroup. Recent examples involving functionalised and chiral aminophosphines are included. The synthesis and structural properties of deprot ...

2005

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