The terminal phosphido complex trans-[PtCl(PHCy2) 2(PCy2)] (1) has been prepared, exploiting the reversibility of the reaction with HCl, by action of 1,8-diazabicyclo[5.4.0] undec-7-ene (DBU) on [PtCl(PHCy2)3]Cl, and its reactivity towards elemental sulfur studied. The first product obtained by reaction of 1 with 1 equiv. of sulfur is trans-[PtCl(PHCy2)2{κP- P(S)-Cy2}] (2), which rapidly isomerises in halogenated solvents into cis-[PtCl(PHCy2)2{κP-P(S)Cy2}] (3). Further addition of sulfur causes the formation of a mixture of [Pt(κ2S,S′-PS2Cy2)-(PHCy 2)2]Cl (4) and [Pt(κ2S,S′-PS 2Cy2){κP-P(S)Cy2}(PHCy2)] (5), which could be selectively synthesised; the first upon sulfuration of pure 3 and the second by reaction of 4 with 1 equiv. of sulfur in the presence of DBU. Complex 5 can be further sulfurated to [Pt(κ2S,S′- PCy2S2)(κS-PCy2S2)(PHCy 2)] (6), which is fluxional in solution and was also characterised by single-crystal X-ray diffraction

Stepwise Sulfuration of the Terminal Phosphido Complex trans-[PtCl(PHCy2)2(PCy2)]: Synthesis of [Pt(k2S,S'-PS2Cy2)(PHCy2)2]Cl and [Pt(k2S,S'-PS2Cy2){kP-P(S)Cy2}(PHCy2)] and Crystal Structure of [Pt(k 2-S,S-PCy2S2)(k-S-PCy2S2)(PHCy2)] / Gallo, Vito; Latronico, Mario; Mastrorilli, Pietro; Nobile, C. F.; Ciccarella, G.; Englert, U.. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 13:(2006), pp. 2634-2641. [10.1002/ejic.200600174]

Stepwise Sulfuration of the Terminal Phosphido Complex trans-[PtCl(PHCy2)2(PCy2)]: Synthesis of [Pt(k2S,S'-PS2Cy2)(PHCy2)2]Cl and [Pt(k2S,S'-PS2Cy2){kP-P(S)Cy2}(PHCy2)] and Crystal Structure of [Pt(k 2-S,S-PCy2S2)(k-S-PCy2S2)(PHCy2)]

GALLO, Vito;LATRONICO, Mario;MASTRORILLI, Pietro;
2006-01-01

Abstract

The terminal phosphido complex trans-[PtCl(PHCy2) 2(PCy2)] (1) has been prepared, exploiting the reversibility of the reaction with HCl, by action of 1,8-diazabicyclo[5.4.0] undec-7-ene (DBU) on [PtCl(PHCy2)3]Cl, and its reactivity towards elemental sulfur studied. The first product obtained by reaction of 1 with 1 equiv. of sulfur is trans-[PtCl(PHCy2)2{κP- P(S)-Cy2}] (2), which rapidly isomerises in halogenated solvents into cis-[PtCl(PHCy2)2{κP-P(S)Cy2}] (3). Further addition of sulfur causes the formation of a mixture of [Pt(κ2S,S′-PS2Cy2)-(PHCy 2)2]Cl (4) and [Pt(κ2S,S′-PS 2Cy2){κP-P(S)Cy2}(PHCy2)] (5), which could be selectively synthesised; the first upon sulfuration of pure 3 and the second by reaction of 4 with 1 equiv. of sulfur in the presence of DBU. Complex 5 can be further sulfurated to [Pt(κ2S,S′- PCy2S2)(κS-PCy2S2)(PHCy 2)] (6), which is fluxional in solution and was also characterised by single-crystal X-ray diffraction
2006
Stepwise Sulfuration of the Terminal Phosphido Complex trans-[PtCl(PHCy2)2(PCy2)]: Synthesis of [Pt(k2S,S'-PS2Cy2)(PHCy2)2]Cl and [Pt(k2S,S'-PS2Cy2){kP-P(S)Cy2}(PHCy2)] and Crystal Structure of [Pt(k 2-S,S-PCy2S2)(k-S-PCy2S2)(PHCy2)] / Gallo, Vito; Latronico, Mario; Mastrorilli, Pietro; Nobile, C. F.; Ciccarella, G.; Englert, U.. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 13:(2006), pp. 2634-2641. [10.1002/ejic.200600174]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/6598
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