Titanocene – 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-yl complexes – crystal structures and their retro reaction
作者:Michal Horáček、Ivana Císařová、Jiří Kubišta、Anke Spannenberg、Kai Dallmann、Uwe Rosenthal、Karel Mach
DOI:10.1016/j.jorganchem.2004.08.035
日期:2004.11
complexes containing the unsaturated carbyl group which consists of one and half molecule of 1,4-bis(trimethylsilyl)buta-1,3-diyne (BSD) are formed by the reduction of titanocene dichlorides with one molar equivalent of magnesium in the presence of 1.5 molar equivalent BSD in tetrahydrofuran (THF) for titanocene moieties Ti(η5-C5H5 − nMen)2 (n = 5 (1), 4 (2), and 3 (3)) and TiMe2Si(η5-C5Me4)2} (4). The
顺磁性的钛茂配合物是由含1摩尔当量镁的二氯化钛茂二氯化物还原而成的,该顺磁性的钛茂配合物由一,半分子1,4-双(三甲基甲硅烷基)丁-1,3-二炔(BSD)组成。在四氢呋喃茂钛部分(η(THF)为1.5的Ti摩尔当量BSD的存在5 -C 5 H ^ - 5 ñ我ñ)2(ñ = 5(1),4(2),和3(3))和Ti 我2的Si(η 5 -C 5我4)2 }(第四)。已知的反磁性双(η相同的条件下的非甲基化的二茂钛基部分,得到5 -环戊二烯基)-2,4-双(三甲基硅乙炔)-3,5-双(三甲基甲硅烷)titanacyclopenta -2,4-二烯(5作为主要)产品。3和4的晶体结构对1,4,6-三(三甲基甲硅烷基)己-3-烯-1,5-二炔-3-基配体的键合方案与先前对化合物1的发现相同[P.-M 。Pellny,FG Kirchbauer,VV Burlakov,A.Spannenberg,K