Structural investigation of homonuclear Pt2 and heteronuclear PdPt complexes containing a metal-metal bond bridged by hydrido and sulfido ligands
Clegg, William (University of Newcastle. Department of Chemistry)
Capdevila Vidal, Mercè (Universitat Autònoma de Barcelona. Departament de Química)
González Duarte, Pilar (Universitat Autònoma de Barcelona. Departament de Química)
Sola i Casadevall, Joan (Universitat Autònoma de Barcelona. Departament de Química)

Data:	1996
Resum:	The complex [Pt2(/. t-H)(#-S)(dppe)2](PF6) undergoes a displacive order-disorder transformation at ca 230 K. The low-temperature structure is ordered with one cation-anion pair as the asymmetric unit in space group P2Jn. At room temperature the b axis is halved and the space group is P2/n, imposing crystallographic twofold rotation symmetry on both ions; the anion shows major disorder and there is probably minor disorder in the cation, but its internal geometry remains essentially unchanged. The heteronuclear complex [PdPt(ft-H)(/. t-S)(dppe)2](PF6) is isostructural with the Pt2 complex at room temperature. All three structures have been determined crystallographically and both complexes have been extensively characterized by NMR spectroscopy, unambiguously confirming the genuine heteronuclear nature of the mixed-metal complex and the presence of the bridging hydride ligand.
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; Versió publicada
Matèria:	Química ; Cristal·lografia ; Crystallography ; Chemistry
Publicat a:	Acta crystallographica. Section B, Structural crystallography and crystal chemistry, Vol. 52, Issue 2 (April 1996) , p. 270-276, ISSN 0108-7681

DOI: 10.1107/S0108768195010640

7 p, 802.1 KB

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