Howell, James A. S. ; Mathur, Pradeep ; Kumar, Rajesh ; Manning, Anthony R. ; Stephens, Frederic S. (1984) The preparation, structure and fluxional behavior of isonitrile derivatives of Cp2Fe2(CO)4-x(CS)x(x = 1, 2) Journal of Organometallic Chemistry, 262 (2). pp. 227-241. 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(00)99146-0
Abstract
The complexes Cp2Fe2(CO)2(CS)(CNR) (R = Me, Et, Pri, But; Cp = η5-C5H5) exist in solution as interconverting Cp(CO)Fe(μ-CO)(μ-CS)Fe(CNR)Cp ∡ Cp(CO)Fe(μ-CS)(μ-CNR)Fe(CO)Cp isomers, with the proportion of the bridged isonitrile isomer increasing in the order But < Pri < Et < Me. A single crystal X-ray determination of the CNPri derivative shows it to have a cis-Cp(CO)Fe(μ-CO)(μ-CS)Fe(CNPri)Cp geometry in the solid state. Cp2Fe2(CO)(CS)(CNMe)2 and Cp2Fe2(CO)(CS)2(CNMe) exist respectively as the single isomers Cp(CO)Fe(μ-CS)(μ-CNMe)Fe(CNMe)Cp and Cp(CO)Fe(μ-CS)2Fe(CNMe)Cp in solution. Interconversions of isomers are discussed in terms of the Adams-Cotton mechanism.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83035 |
| Deposited On: | 16 Feb 2012 04:17 |
| Last Modified: | 16 Feb 2012 04:17 |
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