Abstract In this paper, five diiron propane-1,3-dithiolate complexes containing substituted phosphine ligands were prepared and structurally characterized. Treatment of [Fe2(CO)6(μ-SCH2CH2CH2S)] (1) with a monophosphine ligand methyl diphenylphosphinite, ethyl diphenylphosphinite, 4-(dimethylamino)phenyldiphenylphosphine, tris(2-methoxyphenyl)phosphine, or tris(4-chlorophenyl)phosphine in the presence of Me3NO·2H2O as the decarbonylating agent gave the corresponding phosphine-substituted analogues [Fe2(CO)5(L)(μ-SCH2CH2CH2S)] [L = Ph2POCH3, 2; Ph2POCH2CH3, 3; Ph2P(4-C6H4 NMe2), 4; P(2-C6H4OCH3)3, 5; P(4-C6H4Cl)3, 6] in 73–93% yields. Complexes 2–6 have been characterized by elemental analysis, spectroscopy, and X-ray crystallography. Additionally, electrochemical studies have shown that 2–6 can catalyze the reduction of protons to H2 in the presence of HOAc.

中文翻译：

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五种具有取代膦配体的二铁丙烷-1,3-二硫醇配合物的合成、表征和电化学

摘要 本文制备了五种含有取代膦配体的二铁丙烷-1,3-二硫醇配合物并对其进行了结构表征。[Fe2(CO)6(μ-SCH2CH2CH2S)] (1) 用单膦配体甲基二苯基次膦酸盐、乙基二苯基次膦酸盐、4-（二甲氨基）苯基二苯基膦、三（2-甲氧基苯基）膦或三（4-氯苯基）膦处理在 Me3NO·2H2O 作为脱羰剂存在下，得到相应的膦取代类似物 [Fe2(CO)5(L)(μ-SCH2CH2CH2S)][L = Ph2POCH3, 2; Ph2POCH2CH3, 3; Ph2P(4-C6H4 NMe2), 4; P(2-C6H4OCH3)3, 5; P(4-C6H4Cl)3, 6] 产率为 73-93%。配合物 2-6 已通过元素分析、光谱学和 X 射线晶体学表征。此外，