Please use this identifier to cite or link to this item:
|Title:||Organometallic radical-initiated carbon-sulfur bond cleavage and carbon-carbon coupling in dithiocarbamate and thiocarbenoid cyclopentadienylchromium complexes||Authors:||Goh, L.Y.
|Issue Date:||14-Oct-2002||Citation:||Goh, L.Y., Weng, Z., Hor, A.T.S., Leong, W.K. (2002-10-14). Organometallic radical-initiated carbon-sulfur bond cleavage and carbon-carbon coupling in dithiocarbamate and thiocarbenoid cyclopentadienylchromium complexes. Organometallics 21 (21) : 4408-4414. ScholarBank@NUS Repository. https://doi.org/10.1021/om020294s||Abstract:||Cothermolysis of the dithiocarbamate complex CpCr(CO)2(S2CNEt2) (2b) with [CpCr(CO)3]2 (1) in toluene at 110 °C for 2 h led to the isolation of a yellowish red low-melting solid of CpCr(CO)2(CNEt2) (3b; 6%), a dark red viscous liquid of CpCr(CO)2(SCNEt2) (4b; 19%), dark red crystalline solids of CpCr(CO)2(η2(C,O)-C(O)C(NEt2)CH(NEt2 )) (5b; 4%), dark green solids of Cp4Cr4S4 (30%), dark brown solids of the double cubane Cp6Cr8S8(C(S)NEt2)2 (6b; 13%), and blue solids of Cr(S2CNEt2)3 (8b; 9% yield). Except for 5b, the same product composition (3b, 11%; 4b, 14%; 6b, 37%; Cp4Cr4S4, 20%) was obtained from a similar thermal treatment of 8b with 1. A similar reaction of the thiocarbenoid complex CpCr(CO)2(SCNMe2) (4a) yielded yellow crystalline solids of CpCr(CO)2(CNMe2) (3a, 16%), a dark brown solid of Cp4Cr4S2-(CO)(CNMe2) (7a, 36%), Cp4Cr4C4 (10% yield), and Cp2Cr2(CO)4 (17%). Complexes 3a, 5b, and 7a have been characterized by single-crystal X-ray diffraction analysis. The structures of 3a and 5b possess a metal - carbyne and a metal-alkenylacyl moiety, respectively. Complex 7a is a μ3-aminocarbyne cubane complex.||Source Title:||Organometallics||URI:||http://scholarbank.nus.edu.sg/handle/10635/94450||ISSN:||02767333||DOI:||10.1021/om020294s|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 14, 2019
WEB OF SCIENCETM
checked on Aug 6, 2019
checked on Aug 17, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.