Synthesis, structure, and reactivity of novel iron(II) complexes with a five-membered chelate ligand κ2(Si,N)-SiMe2O(2-C5H4N)
作者:Takahiro Sato、Masaaki Okazaki、Hiromi Tobita、Hiroshi Ogino
DOI:10.1016/s0022-328x(03)00043-3
日期:2003.3
Photolysis of Cp′(CO)2FeSiMe2O(2-C5H4N) (1a: Cp′=η5-C5H5 (Cp), 1b: Cp′=η5-C5Me5 (Cp*)) afforded Cp′(CO)Fe[κ2(Si,N)-SiMe2O(2-C5H4N)] (2a: Cp′=Cp, 2b: Cp′=Cp*) in good yield each. These cyclic compounds also formed in moderate yields through photoreaction of Cp′(CO)2FeSiMe3 with HSiMe2O(2-C5H4N) (3). Single-crystal X-ray diffraction study confirmed the structure of 2b containing a five-membered chelate
Cp的光解'(CO)2 FeSiMe 2 O(2-C 5 H ^ 4 N)(1A:CP'=η 5 -C 5 H ^ 5(CP),1B:CP'=η 5 -C 5我5(得到的Cp * CP))'(CO)的Fe [κ 2(硅,ñ)-SiMe 2 O(2-C 5 H ^ 4 N)](2A:CP'= CP,图2b:在CP'= CP *)每个产量高。这些环状化合物还通过Cp'(CO)2 FeSiMe 3的光反应以中等收率形成。用HSiMe 2 O(2-C 5 H 4 N)(3)。X射线单晶衍射研究证实了2b的结构,该结构包含由Fe,Si,O,C和N组成的五元螯合环。配合物2a和2b具有热稳定性,不会与过量的PR 3反应低于80°C的苯-d 6溶液中的(R = Me,Ph)。高于80°C,2a与PR 3缓慢反应,生成Cp(CO)(PR 3)FeSiMe 2 O(2-C 5 H 4 N)(6:R = Me,7:R