Glavee, George N. ; Jagirdar, Balaji R. ; Schneider, Joerg J. ; Klabunde, Kenneth J. ; Radonovich, Lewis J. ; Dodd, Kelly (1992) Synthesis, chemistry, and structures of mono-η6-arene complexes of chromium(II) bearing trichlorosilyl and carbon monoxide ligands Organometallics, 11 (3). pp. 1043-1050. ISSN 0276-7333
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Official URL: http://pubs.acs.org/doi/abs/10.1021/om00039a008
Related URL: http://dx.doi.org/10.1021/om00039a008
Abstract
(η6-Arene)chromium tricarbonyl complexes have been photolyzed in the presence of trichlorosilane. The first reaction to take place is the expected loss of CO followed by oxidative addition to yield (η6-arene)-Cr(CO)2(H)(SiCl3). However, further photolysis causes the elimination of H2 and formation of (η6-arene)Cr(CO)2(SiCl3)2. During this process the arene ligand becomes labilized and undergoes exchange with other arene ligands present. In some instances, the hydride intermediate is too short-lived to be isolated and the -Cr(CO)2(SiCl3)2 derivative is preferentially formed. Evidence is presented that the presence of the SiCl3 groups helps labilize the η6 arene group both thermally and photochemically. Attempts to incorporate heteroatom-containing arenes are discussed, and X-ray structural elucidations of (η6-mesitylene)Cr(CO) 2(SiCl3)2 and square-planar (2,4,6-collidine)2CrCl2 are presented.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 102251 |
| Deposited On: | 12 Feb 2018 12:18 |
| Last Modified: | 12 Feb 2018 12:18 |
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