Mathur, Pradeep ; Mukhopadhyay, Sarbani ; Lahiri, Goutam K. ; Chakraborty, Soma ; Thone, Carsten (2002) Synthesis, structure, and electrochemistry of acetylide and oxo incorporated mixed Fe/Mo and Fe/W chalcogen-bridged clusters Organometallics, 21 (24). pp. 5209-5215. ISSN 0276-7333
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Official URL: http://pubs.acs.org/doi/abs/10.1021/om020420s?prev...
Related URL: http://dx.doi.org/10.1021/om020420s
Abstract
Thermolysis of a benzene solution containing [Fe2Mo(CO)10(μ3-Se)2] (1) and [(η5-C5Me5)W(CO)3C≡CPh] (2) under an optimum concentration of oxygen in the reaction medium yields the cluster [(η5-C5Me5)MoWFe2(O)(μ3-Se)(μ4-Se)(CO)8(CCPh)] (3), containing a monooxygenated metal center. Under an argon atmosphere, thermolysis of [Fe2Mo(CO)10(μ3-S)2] (4) with [(η5-C5Me5)W(CO)3CCPh] (2) in benzene leads to an oxygen-free mixed metal cluster [(η5-C5Me5)MoWFe4(μ3-S)3(μ4-S)(CO)14(CCPh)] (9). Interestingly, on reacting a benzene solution of 4 with 2 and [(η5-C5Me5)Mo(CO)3C≡CPh] (5) under an increased concentration of oxygen in the reaction medium gave way to clusters [(η5-C5Me5)WMo2(μ-O)2(μ-S)(μ3-CCPh){Fe2(CO)6(μ3-S)2}2] (6), [(η5-C5Me5)WMo(O)2(μ-O)(μ-CCPh){Fe2(CO)6(μ3-S)2}] (7), and [(η5-C5Me5)Mo3(μ-O)2(μ-S)(μ3-CCPh){Fe2(CO)6(μ3-S)2}2] (8) with higher oxygen content. The structures of the newly formed clusters 3, 6, 7, 8, and 9 were established crystallographically and the oxo-containing Mo and W clusters investigated electrochemically.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 24861 |
| Deposited On: | 01 Dec 2010 12:38 |
| Last Modified: | 06 Jun 2011 04:38 |
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