Highly Strained, Ring-Tilted [1]Ferrocenophanes Containing Group 16 Elements in the Bridge: Synthesis, Structures, and Ring-Opening Oligomerization and Polymerization of [1]Thia- and [1]Selenaferrocenophanes
作者:Ron Rulkens、Derek P. Gates、David Balaishis、John K. Pudelski、Douglas F. McIntosh、Alan J. Lough、Ian Manners
DOI:10.1021/ja972043u
日期:1997.11.1
highly strained structures with tilt-angles between the cyclopentadienyl ligands of 31.05(10)° and 26.4(2)°, respectively. Compounds 6 and 7 are purple and red-purple, respectively; comparison of the structures of known [1]ferrocenophanes 1 showed that when the second period (from group 14−16) is traversed, there is a substantial increase in cyclopentadienyl ring-tilting in main group element bridged
第一个硫属元素桥接的 [1] 二茂铁 Fe(η-C5H3R)2E (6, E = S, R = H; 7, E = Se, R = H; 12, E = S, R = Me) 已被合成并在结构和光谱上进行表征。通过二锂硫二茂铁·TMEDA(TMEDA =四甲基乙二胺)与双(苯磺酰基)硫化物S(O2SPh)2和二乙基二硫代氨基甲酸硒Se(S2CNEt2)2在20℃反应,合成了硫桥和硒桥物种6和7 −30% 产率。6 和 7 的结构表征揭示了高度应变的结构,环戊二烯基配体之间的倾斜角分别为 31.05(10)° 和 26.4(2)°。化合物6和7分别为紫色和红紫色;已知 [1] 二茂铁 1 的结构比较表明,当遍历第二个时期(来自第 14-16 组)时,