Coordination and transformations of benzothienyl ligands by triosmium cluster complexes
- Univ. of South Carolina, Columbia, SC (United States)
The reactions benzothiophene and 1-bromobenzothiophene with Os{sub 3}(CO){sub 10}(NCMe){sub 2} have been investigated. The reaction of benzothiophene with Os{sub 3}(CO){sub 10}(NCMe){sub 2} at 25{degree}C yielded two products Os{sub 3}(CO){sub 10}({mu}-SCCHC{sub 6}H{sub 5})({mu}-H), 1 (10%), and Os{sub 3}(CO){sub 9}({mu}{sub 3}-SCCC{sub 6}H{sub 5})({mu}-H){sub 2}, 2 (8%). Both products were characterized by single crystal X-ray diffraction analyses. Both products contain benzothiophene ligands transformed by the activation of one and two of the C-H bonds, respectively, of the benzothiophene molecule. Compound 1 was transformed to 2 in 80% yield by heating to 125{degree}C in octane solvent. The reaction of 1-bromobenzothiophene with Os{sub 3}(CO){sub 10}(NCMe){sub 2} at 25{degree}C yielded two products: Os{sub 3}(CO){sub 10}({mu}-SCCHC{sub 6}H{sub 5})({mu}-Br), 3 (32%), and Os{sub 3}(CO){sub 9}({mu}{sub 3}-SCCHC{sub 6}H{sub 5})({mu}-Br), 4 (10%). Both products were characterized by single crystal X-ray diffraction analyses. Both products contain benzothienyl ligands formed by the oxidative addition of the C-Br bond of the bromobenzothiophene to the cluster. In 3 the benzothienyl ligand is coordinated across the open edge of an open triosmium cluster through the sulfur and adjacent carbon atom. 15 refs., 4 figs., 13 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 50796
- Journal Information:
- Organometallics, Journal Name: Organometallics Journal Issue: 5 Vol. 14; ISSN ORGND7; ISSN 0276-7333
- Country of Publication:
- United States
- Language:
- English
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