Chakravarty, Akhil R. ; Albert Cotton, F. ; Schwotzer, Willi (1984) New preparations and molecular structures of cis-MCl2(Ph2PCH2PPh2)2, M = Ru, Os &trans-RuCl2(Ph2PCH2PPh2)2 Inorganica Chimica Acta, 84 (2). pp. 179-185. ISSN 0020-1693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00201...
Related URL: http://dx.doi.org/10.1016/S0020-1693(00)82405-6
Abstract
The title compounds were made by reacting bis(diphenylphosphino)methane (dppm) with reduced solutions of OsCl64- and Ru2OCl104. The crystal and molecular structures of these compounds have been determined form three-dimensional X-ray study. The cis-isomers crystallize with one CHCl3 per molecule of the complex. All three compounds crystallize in the monoclinic space group P21/n with unit cell dimensions as follows: Cis-OsCl2(dppm)2.CHCl3: a = 13.415(4) Å, b = 22.859(4) Å, c = 16.693(3) Å, β = 105.77(3)°, V = 4926(3) Å3, Z = 4. cis-RuCl2(dppm)2·CHCl3: a = 13.442(3) Å, b = 22.833(7) Å, c = 16.750(4) Å, β = 105.53(2)°, V = 4953(3) Å3, Z = 4. trans-RuCl2(dppm)2: a = 11.368(7) Å, b = 10.656(6) Å, c = 18.832(12) Å; β = 103.90(6)°, V = 2213(7) Å3; Z = 2. The structures were refined to R = 0.044 (Rw = 0.055) for cis-OsCl2(dppm)2·CHCl3; R = 0.065 (Rw = 0.079) for cis-RuCl2(dppm)2·CHCl3 and R = 0.028 (Rw = 0.038) for trans-RuCl2(dppm)2. The complexes are six coordinate with stable four-membered chelate rings. The P---M---P angle in the chelate rings is ca. 71° in each case.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 6284 |
| Deposited On: | 20 Oct 2010 11:18 |
| Last Modified: | 27 May 2011 05:45 |
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