Mathur, Pradeep ; Sekar, P. (1997) Synthesis and spectroscopic characterisation CpCoFe2(CO)5(μ3-Se)2(P⌢P) [P⌢P = dppm or dppe]: crystal structure of CpCoFe2(CO)5(μ3-Se)2(dppm) Journal of Organometallic Chemistry, 527 (1-2). pp. 29-34. ISSN 0022-328X
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0022-328X(96)06629-6
Abstract
The room temperature reactionsof CpCoFe2(CO)6(μ3-Se)2 (1) with bis(diphenylphosphino)methane and 1,2-bis(diphenylphosphino)ethane gave the phosphine derivatives of mixed-metal chalcogen clusters, [CpCoFe2(CO)5(μ3-Se)2(P⌢P) P⌢P = dppm (2), dppe (3)], respectively. Compounds 2 and 3 have been characterised by IR, and 1H, 13C, 31P and 77Se NMR spectroscopy and their compositions have been confirmed by elemental analysis. The structure of 2 has been elucidated by X-ray crystallography. Compound 2 crystallised in the monoclinic, space group P21/n, with a=20.705(5), b=11.603(4), c=32.528(9)Å, β=107.38(2)73176;, ν=7108(4)Å3, z=8, Dc=1.716 Mgm−3 and R=0.053(Rw=0.057). The structure consists of an Fe2CoSe2 metal core in which the dppm ligand bridges Co and one of the Fe atoms.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Iron; Cobalt; Selenium; Phosphorous; Carbonyl; Cluster |
| ID Code: | 83061 |
| Deposited On: | 16 Feb 2012 07:52 |
| Last Modified: | 16 Feb 2012 07:52 |
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