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Article: Organometallic radical-initiated carbon-sulfur bond cleavage and carbon-carbon coupling in dithiocarbamate and thiocarbenoid cyclopentadienylchromium complexes

TitleOrganometallic radical-initiated carbon-sulfur bond cleavage and carbon-carbon coupling in dithiocarbamate and thiocarbenoid cyclopentadienylchromium complexes
Authors
Issue Date2002
Citation
Organometallics, 2002, v. 21, n. 21, p. 4408-4414 How to Cite?
AbstractCothermolysis 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.
Persistent Identifierhttp://hdl.handle.net/10722/237556
ISSN
2017 Impact Factor: 4.051
2015 SCImago Journal Rankings: 2.043
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGoh, Lai Yoong-
dc.contributor.authorWeng, Zhiqiang-
dc.contributor.authorHor, Andy T S-
dc.contributor.authorLeong, Weng Kee-
dc.date.accessioned2017-01-16T06:09:44Z-
dc.date.available2017-01-16T06:09:44Z-
dc.date.issued2002-
dc.identifier.citationOrganometallics, 2002, v. 21, n. 21, p. 4408-4414-
dc.identifier.issn0276-7333-
dc.identifier.urihttp://hdl.handle.net/10722/237556-
dc.description.abstractCothermolysis 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.-
dc.languageeng-
dc.relation.ispartofOrganometallics-
dc.titleOrganometallic radical-initiated carbon-sulfur bond cleavage and carbon-carbon coupling in dithiocarbamate and thiocarbenoid cyclopentadienylchromium complexes-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1021/om020294s-
dc.identifier.scopuseid_2-s2.0-0037819710-
dc.identifier.volume21-
dc.identifier.issue21-
dc.identifier.spage4408-
dc.identifier.epage4414-
dc.identifier.isiWOS:000178522200021-

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