Details

Autor(en) / Beteiligte

• Ng, Victor Wee Lin
• Kuan, Seah Ling
• Weng, Zhiqiang
• Leong, Weng Kee
• Vittal, Jagadese J.
• Koh, Lip Lin
• Tan, Geok Kheng
• Goh, Lai Yoong

Titel

Reactivity of [CpCr(CO) 3] 2 towards thione (C S) moieties in some sulfur-containing substrates

Ist Teil von

• Journal of organometallic chemistry, 2005-04, Vol.690 (9), p.2323-2332

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2005

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [CpCr(CO) 3] 2 reacts with (i) 2,5-dimercapto-1,3,4-thiadiazole, (ii) vinylene trithiocarbonate and (iii) isopropylxanthic disulfide to give the respective major products: (i) 2 and 5, (ii) 4, 6 and 7, and (iii) 8. The reaction of [CpCr(CO) 3] 2 (Cp = η 5-C 5H 5) ( 1) with 1 mol equivalent of 2,5-dimercapto-1,3,4-thiadiazole ( DMcTH 2) at ambient temperature led to the isolation of a reddish-brown crystalline solid of CpCr(CO) 3(η 1-DMcTH) ( 5) and a green solid of CpCr(CO) 3H ( 2) in yields of ca. 28% and 30%, respectively, along with some [CpCr(CO) 2] 2 ( 3) and [CpCr(CO) 2] 2S ( 4). The reaction of 1 with 1 mol equivalent of vinylene trithiocarbonate (SCS(CH) 2S) ( VTTC) at 90 °C led to the isolation of a red crystalline solid of CpCr(CO) 2(η 2-SCHSC 2H 2) ( 6) in ca. 15% yield while the reaction of 1 with isopropylxanthic disulfide ((CH 3) 2CHOCS 2) 2 resulted in the formation of CpCr(CO) 2(η 2-S 2COCH(CH 3) 2) ( 8) in ca. 80% yield. The complexes 5, 6 and 8 have been determined by single crystal X-ray diffraction analysis.