syn-(Co(CO)2)2(η(5)-C5H3(SiMe2Si2Me4)η(5)-C5H3) | 197647-86-2

• 英文名称: syn-(Co(CO)2)2(η(5)-C5H3(SiMe2Si2Me4)η(5)-C5H3)
• CAS: 197647-86-2
• 化学式: C₂₀H₂₄Co₂O₄Si₃
• 分子量: 530.651
• InChiKey: OQZJQPHSXDCIBT-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  dicobalt octacarbonyl 、 1,1,2,2,4,4-hexamethylspiro[4aH-cyclopenta[e][1,2,4]trisiline-3,5'-cyclopenta-1,3-diene] 在 1,3-cyclohexadiene 作用下， 以 二氯甲烷 为溶剂， 以20%的产率得到syn-(Co(CO)2)2(η(5)-C5H3(SiMe2Si2Me4)η(5)-C5H3)
  参考文献：
  名称：

  π-H3C5(Me2Si) (Me2SiSiMe2)-π-C5H3: Ein neuartiger, zweifach verbrückter Dicyclopentadienyl-Ligand: Synthese und beispielhafter Einsatz in der Komplexchemie

  摘要：

  Deprotonation of dicyclopentadienyldimethylsilane with two equivalents of n-butyllithium and subsequent reaction with 1,2-dichlorotetramethyldisilane yields the double-bridged dicyclopentadiene H4C5(SiMe2)(Si2Me4)C5H4 (1 = H2L). Reaction of 1 with two equivalents of n-butyllithium leads to the dilithio compound Li-2 [H3C5(SiMe2)(Si2Me4)C5H3] (2 = Li2L) with the bridging dimethylsilyl and tetramethyldisilanyl group in 1,2 position (ortho-position) at each cyclopentadienyl unit 2 is used as starting material for the exemplary synthesis of the following metal complexes: Cp '' Cl2ZrLZrCl2Cp '' (3; Cp '' = 1,3-(t-Bu)(2)C5H3), Cp '' Cl2ZrLH (4); Me5C5RuLRuC5Me5 (syn: 5a; anti: 5b); syn-(CO)(2)CoLCo(CO)(2) (6). All compounds are characterized by spectroscopic and analytical data. X-ray crystal structures are presented for 1 and for 3. Stereochemical effects in metal complexes with the new unsymmetrically bridged dicyclopentadienyl ligand L are discussed.

  DOI：

  10.1016/s0022-328x(97)00011-9