Synthesis and reactivity of bimetallic acetylide-bridged Pt-Pt complexes. Crystal and molecular structure of [(PPh3)(C6F5)Pt(mu-C=CPh)2Pt(C6F5)(PPh3)]
- Berenguer, J.R. 1
- Forniés, J. 1
- Martínez, F. 1
- Cubero, J.C. 1
- Lalinde, E. 3
- Moreno, M.T. 3
- Welch, A.J. 2
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1
Instituto de Nanociencia y Materiales de Aragón
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2
University of Edinburgh
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3
Universidad de La Rioja
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ISSN: 0277-5387
Year of publication: 1993
Volume: 12
Issue: 14
Pages: 1797-1804
Type: Article
beta Ver similares en nube de resultadosMore publications in: Polyhedron
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). © 1993.