Bera, Jitendra K. ; Fanwick, Phillip E. ; A. Walton, Richard (2000) The structural characterization of Re2Cl4(μ-dcpm)2 (dcpm=Cy2PCH2PCy2) and a new crystallographic form of Re2Cl4(μ-dppm)2 (dppm=Ph2PCH2PPh2) Inorganica Chimica Acta, 311 (1-2). pp. 138-142. ISSN 0020-1693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0020-1693(00)00321-2
Abstract
The single crystal X-ray structures of the triply bonded complexes Re2Cl4(μ-dcpm)2 (1) (dcpm=Cy2PCH2PCy2) and a new crystal form of Re2Cl4(μ-dcpm)2 (2) (dppm=Ph2PCH2PPh2) have been determined and are compared with literature data for other complexes of this type. Complexes 1 and 2 both possess staggered rotational geometries. Complex 1 has Re-Re distances of 2.2256(4) and 2.2267(4) Å for two crystallographically independent molecules. Complex 2 also has two independent molecules in the asymmetric unit, one of which is normal with Re-Re=2.2497(4) Å, whereas the other exhibits a twofold orientational disorder for the Re-Re unit (distances 2.2368(5) Å and 2.231(4) Å for the major (90%) and minor (10%) forms respectively).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Crystal Structures; Dirhenium(II) Complexes; Bis(diphenylphosphino)methane; Bis(dicyclohexylphosphino)methane; Metal–metal Multiple bonds |
| ID Code: | 100227 |
| Deposited On: | 27 Nov 2016 13:22 |
| Last Modified: | 27 Nov 2016 13:22 |
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