Facile synthesis, X-ray analysis, and spectroscopic studies of di-iron propanedithiolate complexes with tris(aromatic)phosphine ligands
作者： Pei-Hua Zhao , Xin-Hang Li , Yun-Feng Liu , Ya-Qing Liu
DOI: 10.1080/00958972.2014.903329
关键词: X ray analysis 、 Tris 、 Chemistry 、 NMR spectra database 、 Photochemistry 、 Single crystal 、 Propanedithiolate 、 Elemental analysis 、 Phosphine 、 Crystallography 、 Infrared spectroscopy
摘要: Three new propanedithiolate-type iron–sulfur complexes containing tris(aromatic)phosphine ligands, [{(μ-SCH2)2CH2}Fe2(CO)5L] (L = P(PhOMe-p)3, 1; P(PhMe-p)3, 2; P(PhF-p)3, 3), have been prepared through carbonyl substitution in the presence of Me3NO. The 1–3 were characterized by elemental analysis, IR, 1H, 13C{1H}, and 31P{H} NMR spectra. molecular structures unequivocally determined single crystal X-ray diffraction, which coordinated to Fe resides an apical position pseudo-square-pyramidal geometry. IR spectroscopy crystallographic analysis for indicated that highly electron rich ligands (where corresponding electron-donating abilities display following order P(PhOMe-p)3 > P(PhMe-p)3 > P(PhF-p)3) result a considerable red shift CO-stretching frequencies clear change Fe–Fe bond distances 1–3.
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