Synthetic and Structural Study of Cyclopentadienylchromium Dithiocarbamate Complexes and Their Thermolytic Derivatives
作者:Lai Yoong Goh、Zhiqiang Weng、Weng Kee Leong、Pak Hing Leung
DOI:10.1021/om0202930
日期:2002.10.1
solution after 3 days at −29 °C. At 90 °C for 2 h, the same reaction or the thermal degradation of 3 led to the isolation of the thiocarbenoid complex CpCr(CO)2(η2-SCNR2) (4) as dark red crystals (ca. 10%), double cubanes Cp6Cr8S8(η2:η4-SCNR2)2 (5a, R = Me; 5b, R = Et) as dark brown crystals (3−7%), Cp6Cr8S8(η1:η2-S2CNR2)2 (6) as dark crystals (7−14%), Cr(η2-S2CNR2)3 (7) as dark blue crystals (16−21%),
研究了[CpCr(CO)3 ] 2(1)与四烷基秋兰姆二硫化物[R 2 NC(S)S] 2(R = Me,Et,i -Pr)的反应。在环境温度下,CPCR(CO)2(η 2 -S 2 CNR 2)(3)中的溶液中得到的固体为空气稳定的暗红色晶体在81-87%的收率从溶液中反应和以定量产率从反应状态(3a,R = Me); 前体配合物CPCR(CO)3(η 1 -S 2 CNME 2)(图2a)在-29°C下放置3天后,与3a从产品溶液中以1:1混合物结晶出来。在90℃下2小时,在相同的反应或热降解3导致了复杂的thiocarbenoid CPCR(CO)的分离2(η 2 -SCNR 2)(4如)暗红色晶体(约10%) ,双立方烷的Cp 6的Cr 8小号8(η 2:η 4 -SCNR 2)2(5A,R =甲基;图5b,R = ET),为暗棕色结晶(3-7%)中,Cp 6的Cr 8小号8(η1:η