Imperial College London

Prof. Ramon Vilar

Faculty of Natural SciencesDepartment of Chemistry

Professor of Medicinal Inorganic Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 1967r.vilar Website

 
 
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Location

 

301HMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Publication Type
Year
to

168 results found

Dura-Vila V, Mingos DMP, Vilar R, White AJP, Williams DJet al., 2000, Insertion of O2 into a Pd(I)-Pd(I) dimer and subsequent C-O bond formation by Activation of a C-H bond, Chemical Communications, Pages: 1525-1526, ISSN: 1359-7345

Journal article

Arifhodzic-Radojevic S, Burrows AD, Choi N, McPartlin M, Mingos DMP, Tarlton SV, Vilar Ret al., 1999, Reactivity of the palladium dimer [Pd<inf>2</inf>(μ-SO<inf>2</inf>)(μ-dba)(PBz<inf>3</inf>)<inf>2</inf>]. Syntheses and structural characterisation of [Pd<inf>3</inf>(μ-SO<inf>2</inf>)<inf>3</inf>(PBz<inf>3</inf>)<inf>3</inf>], [Pd<inf>2</inf>(μ-SO<inf>2</inf>)(μ-dppm)(PBz<inf>3</inf>)<inf>2</inf>], [Pd(SO<inf>2</inf>)(PBz<inf>3</inf>)<inf>2</inf>], Journal of the Chemical Society - Dalton Transactions, Pages: 3981-3988, ISSN: 0300-9246

The reaction between [Pd2(dba)3]·solvent (dba = dibenzylideneacetone, solvent = CHCl3 or C6H6) and PBz3 (Bz = benzyl) in the presence of SO2 led to either [Pd2(μ-SO2)(μ-dba)(PBz3)2] 1 or [Pd3(μ-SO2)3(PBz3)3] 2 depending on the absence or presence of an excess of SO2 in solution or in the recrystallisation. The crystal structure of 2 shows it to be a regular triangulo-cluster with Pd-Pd bond distances 2.7225(9) Å. Complex 1 reacted with dppm with displacement of dba to give [Pd2(μ-SO2)(μ-dppm)(PBz3)2] 3. The crystal structure of 3 shows it to have a much shorter Pd-Pd bond length than 1 [2.670(2) Åfor 3 cf. 2.885(2) Å for 1], which can be rationalised on the basis of the palladium atoms having been formally oxidised to PdI and the SO2 reduced to SO22-. Complex 1 reacted with PBz3 to give two mononuclear complexes, the previously characterised [Pd(dba)(PBz3)2] and the new complex [Pd(SO2)(PBz3)2] 4 which was characterised by a single crystal X-ray analysis. Complex 4 forms a distorted T-shaped structure with the P-Pd-P angle 163.67(14)°. It contains a η1-pyramidal SO2 ligand, and is the first mononuclear palladium SO2 complex to be crystallographically characterised. Complex 1 reacts with CO to give a mixture of the triangulo-clusters [Pd3(μ-CO)2(μ-SO2)(PBz3) 3] 5 and [Pd3(μ-CO)(μ-SO2)2(PBz3) 3] 6. Reaction with an excess of CO converted 6 into 5, and the crystal structure of 5 reveals relatively short Pd-Pd bond lengths consistent with a 42-electron cluster. Complex 1 reacted with CNBut to give [Pd3(μ-SO2)2(CNBut) 2(PBz3)3] which has also been crystallographically characterised. © The Royal Society of Chemistry 1999.

Journal article

Long NJ, Martin AJ, Vilar R, White AJP, Williams DJ, Younus M, Long NJ, Martin AJ, Vilar R, White AJP, Williams DJ, Younus Met al., 1999, Synthesis, characterization, and theoretical studies of new alkynylferrocene and -biferrocene ligands and their platinum- containing dimers and oligomers, Organometallics, Vol: 18, Pages: 4261-4269, ISSN: 0276-7333

Journal article

Arifhodzic-Radojevic S, Burrows AD, Choi N, McPartlin M, Mingos DMP, Tarlton SV, Vilar Ret al., 1999, Reactivity of the palladium dimer [Pd-2(mu-SO2)(mu-dba)(PBz(3))(2)]. Syntheses and structural characterisation of [Pd-3(mu- SO2)(3)(PBz(3))(3)], [Pd-2(mu-SO2)(mu-dppm)(PBz(3))(2)], [Pd(SO2)(PBz(3))(2)], [Pd-3(mu-CO)(2)(mu-SO2)(PBz(3))(3)] and [Pd- 3(mu-SO2)(2)(CNBut)(2)(PBz(3))(3)] (Bz = benzyl), Journal of the Chemical Society-Dalton Transactions, Pages: 3981-3988, ISSN: 0300-9246

Journal article

Tarlton SV, Choi N, McPartlin M, Mingos DMP, Vilar Ret al., 1999, Synthesis and structural characterisation of the novel tetranuclear cluster compound [Pd-4(mu-SO2)(2)(mu(3)-S)(CO)(PBz(3))(4)] (Bz=C6H5CH2), Journal of the Chemical Society-Dalton Transactions, Pages: 653-654, ISSN: 0300-9246

Journal article

Vilar R, Mingos DMP, White AJP, Williams DJet al., 1999, Aufbau synthesis of a mixed-metal anion receptor cage, Chemical Communications, Pages: 229-230, ISSN: 1359-7345

Journal article

Burrows AD, Choi N, McPartlin M, Mingos DMP, Tarlton SV, Vilar Ret al., 1999, Syntheses and structural characterisation of the compounds [Pd(dba)L- 2] (where L = PBz(3) and PPh2Np) and the novel dimer [Pd-2(mu- dba)(mu-SO2)(PBz(3))(2)], Journal of Organometallic Chemistry, Vol: 573, Pages: 313-322, ISSN: 0022-328X

Journal article

Mingos DMP, Vilar R, McPartlin M, Scowen Iet al., 1998, Reactivity studies of [Pd2(-Br)2(PBut3)2], and structural characterization of the phosphine cyclometallated cluster [Pd4(-Br)3(-CO)2(But2PCMe2CH2)(PBut3)2], London, Electronic Conference on Trends in Organometallic Chemistry, Publisher: Royal Society of Chemistry

Conference paper

Vilar R, Mingos DMP, White AJP, Williams DJet al., 1998, Anion control in the self-assembly of a cage coordination complex, Angewandte Chemie-International Edition in English, Vol: 37, Pages: 1258-1261, ISSN: 1433-7851

Journal article

Mingos DMP, Vilar R, 1998, Synthesis and reactivity of palladium cluster compounds, Journal of Organometallic Chemistry, Vol: 557, Pages: 131-142, ISSN: 0022-328X

Journal article

Vilar R, Lawrence SE, Menzer S, Mingos DMP, Williams DJet al., 1997, Synthesis and structural characterisation of tetranuclear palladium- cobalt clusters, Journal of the Chemical Society-Dalton Transactions, Pages: 3305-3309, ISSN: 0300-9246

Journal article

Vilar R, Lawrence SE, Mingos DMP, Williams DJet al., 1997, Cluster model for the catalytic hydrogenation of CFCs and the synthesis and structural characterisation (when X=Br) of [Pd-4(mu(3)- CF)(mu-X)(3)(PBu(3)(t))(4)] (X=Cl,Br), Chemical Communications, Pages: 285-286, ISSN: 1359-7345

Journal article

Vilar R, Mingos DMP, Cardin CJ, 1996, Synthesis and structural characterisation of [Pd-2(mu- Br)(2)(PBu(t)(3))(2)], an example of a palladium(I)-palladium(I) dimer, Journal of the Chemical Society-Dalton Transactions, Pages: 4313-4314, ISSN: 0300-9246

Journal article

Vilar R, Mingos DMP, 1996, Synthesis, characterization and reactivity studies of alkylidyne palladium cluster compounds, Journal of Cluster Science, Vol: 7, ISSN: 1040-7278

Journal article

ESCUDERO A, VILAR R, SALCEDO R, OGAWA Tet al., 1995, EFFECTS OF SUBSTITUENT GROUPS AND SUBSTITUTED BENZENES ON THE POLYMERIZATION OF PHENYLACETYLENES INITIATED BY DI-MU-PENTAFLUOROTHIOPHENOLATE BIS(1,5-CYCLOOCTADIENE) RHODIUM(I), EUROPEAN POLYMER JOURNAL, Vol: 31, Pages: 1135-1138, ISSN: 0014-3057

Journal article

LIKHATCHEV D, ALEXANDROVA L, TLENKOPATCHEV M, VILAR R, VERAGRAZIANO Ret al., 1995, SOLUBLE AROMATIC POLYIMIDES AND POLYAMIDES BASED ON 4,4'-DIAMINOTRIPHENYLMETHANE, JOURNAL OF APPLIED POLYMER SCIENCE, Vol: 57, Pages: 37-44, ISSN: 0021-8995

Journal article

BURROWS AD, MINGOS DMP, MENZER S, VILAR R, WILLIAMS DJet al., 1995, SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF [PD-4(MU(3)-CH)(MU-CL)(3)(PBU(3)(T))(4)] - A TETRAHEDRAL PALLADIUM CLUSTER-WITH A MU(3)-METHYLIDYNE LIGAND, JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, Pages: 2107-2108, ISSN: 0300-9246

Journal article

VILAR R, SALCEDO R, GAVINO R, OGAWA Tet al., 1994, POLYMERIZATION OF PHENYLACETYLENE WITH DI-MU-PENTAFLUOROTHIOPHENOLATE BIS(1,5-CYCLOOCTADIENE)RHODIUM(I) AND ITS ANALOGS, EUROPEAN POLYMER JOURNAL, Vol: 30, Pages: 1237-1242, ISSN: 0014-3057

Journal article

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