二铁二硫醇盐的路易斯碱性与布朗斯特碱性：“旋转结构”的光谱检测以及乙烷二硫醇盐与丙烷二硫醇盐的显著影响
Lewis vs. Brønsted-basicities of diiron dithiolates: spectroscopic detection of the "rotated structure" and remarkable effects of ethane- vs. propanedithiolate.
作者信息
Justice Aaron K, Zampella Giuseppe, De Gioia Luca, Rauchfuss Thomas B
机构信息
Department of Chemistry, University of Illinois, Urbana, IL, USA.
出版信息
Chem Commun (Camb). 2007 May 28(20):2019-21. doi: 10.1039/b700754j.
DOI:10.1039/b700754j
PMID:17713064
Abstract
The new complexes Fe2(S2CnH2n)(CO)2(dppv)2 (n = 2, 3; dppv = cis-1,2-C2H2(PPh2)2) form adducts with AlBr3 and B(C6F5)3, which adopt the "rotated structure" proposed for the active site of the Fe-only hydrogenases--the propanedithiolate is significantly more Lewis basic due to nonbonded interactions between the dithiolate strap and the ligands on Fe.
摘要
新型配合物Fe2(S2CnH2n)(CO)2(dppv)2（n = 2, 3；dppv = 顺式-1,2-C2H2(PPh2)2）与AlBr3和B(C6F5)3形成加合物，这些加合物采用了为仅含Fe的氢化酶活性位点所提出的“旋转结构”——由于二硫醇盐带与Fe上配体之间的非键相互作用，丙二硫醇盐的路易斯碱性明显更强。
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