Synthesis and properties of novel substituted 4,5,6,7-tetrahydroindenes and selected metal complexes
作者:Rachel N. Austin、T.Jeffrey Clark、Thomas E. Dickson、Christopher M. Killian、Terence A. Nile、Daniel J. Schabacker、Andrew T. McPhail
DOI:10.1016/0022-328x(94)05247-9
日期:1995.4
ease of oxidation is additive. A single crystal X-ray structure of two of the ferrocenes, bis(1,3-dimethyl-4,5,6,7-tetrahydroindenyl)iron(II), 10, and bis(1,2,3-trimethyl-4,5,6,7-tetrahydroindenyl)iron(II), 10, indicates that steric hindrance causes the alkyl substituents to be bent away from the plane of the cyclopentadienyl ring. However, the structures differ in that the cyclopentadienyl rings in
完整系列的取代4,5,6,7-四氢茚(4,5,6,7-四氢茚,1 ; 1-甲基-,1,3-二甲基-和1,2,3-三甲基-据报道有4,5,6,7-四氢茚,2-4。描述了由这些取代的环戊二烯合成二茂铁(bd8-11)。这些二茂铁的电化学表明这些配合物比二茂铁更容易被氧化,并且甲基或烷基取代基对易氧化性的影响是加和的。两个二茂铁双(1,3-二甲基-4,5,6,7-四氢茚基)铁(II),10和双(1,2,3-三甲基-4 )的单晶X射线结构,5,6,7-四氢茚基)铁(II),10表示空间位阻导致烷基取代基弯曲离开环戊二烯基环的平面。然而,结构的不同之处在于10中的环戊二烯基环是交错的,而11中的环戊二烯基环则黯然无光。还描述了由3和4合成钼和钨的环戊二烯基三羰基甲基化合物。