Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh3)(C6F5)Pt(μ-CCPh)2Pt(C6F5)(PPh3)]

J. R. Berenguer; J. Forniés; F. Martínez; J. C. Cubero; E. Lalinde; M. T. Moreno; A. J. Welch

doi:10.1016/S0277-5387(00)84615-X

Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh₃)(C₆F₅)Pt(μ-CCPh)₂Pt(C₆F₅)(PPh₃)]

J. R. Berenguer, J. Forniés^*, F. Martínez, J. C. Cubero, E. Lalinde, M. T. Moreno, A. J. Welch

^*Corresponding author for this work

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Abstract

The binuclear double-bridged acetylide complexes [Pt(μ-CCR)(C₆F₅)PPh₃)]₂ [R = Ph (1), Bu^t (2), SiMe₃ (3)] have been synthesized from [trans-Pt(CCR)₂(PPh₃)₂] and [cis-Pt(C₆F₅)₂(THF)₂] (THF = tetrahydrofuran). The crystal structure of [Pt(μ-CCPh) (C₆F₅)(PPh₃)]₂ (1) has been established by X-ray diffraction methods. The structure shows that two identical [(PPh₃)(C₆F₅)PtCCPh] units are joined together through η²-bonding of MCCPh units. This indicates that the complex is formed via a rearrangement of groups between the two metal centres. Treatment of [Pt(μ-CCR)(C₆F₅)(PPh₃)]₂ with L (L = PPh₃, py = pyridine) produces simple bridge-cleavage reactions giving the mono-nuclear complexes [trans-Pt(C₆F₅)(CCR)(PPh₃)L] (4-9).

Original language	English
Pages (from-to)	1797-1804
Number of pages	8
Journal	Polyhedron
Volume	12
Issue number	14
DOIs	https://doi.org/10.1016/S0277-5387(00)84615-X
Publication status	Published - Jul 1993

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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@article{602a9870400d49f2908ec93a49ab959d,

title = "Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh3)(C6F5)Pt(μ-CCPh)2Pt(C6F5)(PPh3)]",

abstract = "The binuclear double-bridged acetylide complexes [Pt(μ-CCR)(C6F5)PPh3)]2 [R = Ph (1), But (2), SiMe3 (3)] have been synthesized from [trans-Pt(CCR)2(PPh3)2] and [cis-Pt(C6F5)2(THF)2] (THF = tetrahydrofuran). The crystal structure of [Pt(μ-CCPh) (C6F5)(PPh3)]2 (1) has been established by X-ray diffraction methods. The structure shows that two identical [(PPh3)(C6F5)PtCCPh] units are joined together through η2-bonding of MCCPh units. This indicates that the complex is formed via a rearrangement of groups between the two metal centres. Treatment of [Pt(μ-CCR)(C6F5)(PPh3)]2 with L (L = PPh3, py = pyridine) produces simple bridge-cleavage reactions giving the mono-nuclear complexes [trans-Pt(C6F5)(CCR)(PPh3)L] (4-9).",

author = "Berenguer, {J. R.} and J. Forni{\'e}s and F. Mart{\'i}nez and Cubero, {J. C.} and E. Lalinde and Moreno, {M. T.} and Welch, {A. J.}",

year = "1993",

month = jul,

doi = "10.1016/S0277-5387(00)84615-X",

language = "English",

volume = "12",

pages = "1797--1804",

journal = "Polyhedron",

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TY - JOUR

T1 - Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh3)(C6F5)Pt(μ-CCPh)2Pt(C6F5)(PPh3)]

AU - Berenguer, J. R.

AU - Forniés, J.

AU - Martínez, F.

AU - Cubero, J. C.

AU - Lalinde, E.

AU - Moreno, M. T.

AU - Welch, A. J.

PY - 1993/7

Y1 - 1993/7

N2 - The binuclear double-bridged acetylide complexes [Pt(μ-CCR)(C6F5)PPh3)]2 [R = Ph (1), But (2), SiMe3 (3)] have been synthesized from [trans-Pt(CCR)2(PPh3)2] and [cis-Pt(C6F5)2(THF)2] (THF = tetrahydrofuran). The crystal structure of [Pt(μ-CCPh) (C6F5)(PPh3)]2 (1) has been established by X-ray diffraction methods. The structure shows that two identical [(PPh3)(C6F5)PtCCPh] units are joined together through η2-bonding of MCCPh units. This indicates that the complex is formed via a rearrangement of groups between the two metal centres. Treatment of [Pt(μ-CCR)(C6F5)(PPh3)]2 with L (L = PPh3, py = pyridine) produces simple bridge-cleavage reactions giving the mono-nuclear complexes [trans-Pt(C6F5)(CCR)(PPh3)L] (4-9).

AB - The binuclear double-bridged acetylide complexes [Pt(μ-CCR)(C6F5)PPh3)]2 [R = Ph (1), But (2), SiMe3 (3)] have been synthesized from [trans-Pt(CCR)2(PPh3)2] and [cis-Pt(C6F5)2(THF)2] (THF = tetrahydrofuran). The crystal structure of [Pt(μ-CCPh) (C6F5)(PPh3)]2 (1) has been established by X-ray diffraction methods. The structure shows that two identical [(PPh3)(C6F5)PtCCPh] units are joined together through η2-bonding of MCCPh units. This indicates that the complex is formed via a rearrangement of groups between the two metal centres. Treatment of [Pt(μ-CCR)(C6F5)(PPh3)]2 with L (L = PPh3, py = pyridine) produces simple bridge-cleavage reactions giving the mono-nuclear complexes [trans-Pt(C6F5)(CCR)(PPh3)L] (4-9).

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DO - 10.1016/S0277-5387(00)84615-X

M3 - Article

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Synthesis and reactivity of bimetallic acetylide-bridged PtPt complexes. Crystal and molecular structure of [(PPh₃)(C₆F₅)Pt(μ-CCPh)₂Pt(C₆F₅)(PPh₃)]

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