(η5-C5H5)Fe(dppm)SiMe3 | 1021603-30-4

• 英文名称: (η5-C5H5)Fe(dppm)SiMe3
• 英文别名: (η5-C5H5)Fe(bis(diphenylphosphino)methane)SiMe3
• CAS: 1021603-30-4
• 化学式: C₃₃H₃₆FeP₂Si
• 分子量: 578.529
• InChiKey: JUZUGXHEAMFLSC-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  [dicarbonyl(η5-cyclopentadienyl)iron]trimethylsilane 、 双二苯基膦甲烷 以 四氢呋喃 为溶剂， 以60%的产率得到(η5-C5H5)Fe(dppm)SiMe3
  参考文献：
  名称：

  Synthesis and electrochemical aspects of group 14 iron complexes of the type (η5-C5H5)Fe(L)2ER3, L2= (CO)2, (Ph2P)2CH2; E = C, Si, Ge, Sn

  摘要：

  The dicarbonyl and diphosphine complexes of the type (eta(5)-C5H5)Fe(L)(2)ER3(L-2 = (CO)(2) (a), (Ph2P)(2)CH2 (b); ER3 = CH3 (1a/b); SiMe3 (2a/b), GeMe3 (3a/b), SnMe3 (4a/b)) were synthesized and studied electrochemically. Cyclic voltammetric studies on the dicarbonyl complexes 1a-4a revealed one electron irreversible oxidation processes whereas the same processes for the chelating phosphine series 1b-4b were reversible. The E-ox values found for the series 1a-4a were in the narrow range 1.3-1.5 V and in the order Si > Sn approximate to Ge > C; those for 1b-4b (involving replacement of the excellent retrodative pi-accepting CO ligands by the superior sigma-donor and poorer pi-accepting phosphines) have much lower oxidation potentials in the sequence Sn > Si approximate to Ge > C. This latter oxidation potential pattern relates directly to the solution 31 P NMR chemical shift data illustrating that stronger donation lowers the Eox for the complexes; however, simple understanding of the trend must await the results of a current DFT analysis of the systems. (C) 2007 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2006.12.043