Synthesis, characterization, and electrochemical properties of diiron propaneditellurolate (PDTe) complexes as active site models of [FeFe]-hydrogenases
作者:Li-Cheng Song、Qian-Li Li、Zhan-Heng Feng、Xiao-Jing Sun、Zhao-Jun Xie、Hai-Bin Song
DOI:10.1039/c2dt31976d
日期:——
[(μ-PDTe)Fe2(CO)5]2(dppf) (10) in 25–37% yields. All the new substituted model complexes 2–10 are characterized by combustion analysis and spectroscopy, and particularly for 2, 3, 5, and 7–10, by X-ray crystallography. In addition, a comparative study on the electrochemical and electrocatalytic properties of the PDTe-type model complexes 1 and 7 with their corresponding selenium and sulfur analogs are
Substitution reactions of diiron diselenolato complex with bisphosphine ligands
作者:Qian-Li Li、Shuang Lü、Ru-Fen Zhang、Dong Zhao、Chun-Lin Ma
DOI:10.1016/j.poly.2018.12.044
日期:2019.3
Me3NO in toluene/MeCN at room temperature to give (μ-PhCH2Se)2Fe2(CO)4(k2-dppv) (2), where two phosphorus atoms of dppv are chelated to a single iron. While the (μ-PhCH2Se)2Fe2(CO)4(μ-dppm) (3) and (μ-PhCH2Se)2Fe2(CO)4(μ-dppn) (4) can be prepared by treatment of A with 1 equiv of dppm or dppn in refluxing xylene, where the phosphine acts as a bidentate ligand. Interestingly, the C Se bond homolysis is
Carbonyl substitution reactions of [μ-(SCH2)2CHC6H5]Fe2(CO)6 with bidentate phosphine ligands, cis-1,2-bis(diphenylphosphine)ethylene (cis-dppv) and N,N-bis(diphenylphosphine)propylamine [(Ph2P)2N-Pr-n], yielded an asymmetrically substituted chelated complex [(μ-SCH2)2CHC6H5]Fe2(CO)4(k2-dppv) and a symmetrically substituted bridging complex [(μ-SCH2)2CHC6H5]Fe2(CO)4[μ-(PPh2)2N-Pr-n] under different
Synthesis of Luminescent Trinuclear Silver(I) Acetylides of Bis(diphenylphosphino)methane and Bis(diphenylphosphino)-<i>n</i>-propylamine. X-ray Crystal Structures of [Ag<sub>3</sub>(μ-dppm)<sub>3</sub>(μ<sub>3</sub>-η<sup>1</sup>-C⋮C-C<sub>6</sub>H<sub>4</sub>-NO<sub>2</sub>-<i>p</i>)]<sup>2+</sup> and [Ag<sub>3</sub>(μ-dppm)<sub>3</sub>(μ<sub>3</sub>-η<sup>1</sup>-C⋮C-C<sub>6</sub>H<sub>4</sub>-NO<sub>2</sub>-<i>p</i>)<sub>2</sub>]<sup>+</sup>
A series of soluble trinuclear silver(I) complexes containing monocapped and bicapped acetylides, [Ag3(LL)3(μ3-η1-C⋮CR)]2+ and [Ag3(LL)3(μ3-η1-C⋮C-C6H4-NO2-p)2]+ [LL=[(C6H5)2P]2CH2 (dppm), [(C6H5)2P]2NnPr (nPrPNP)], have been synthesized. The X-raycrystalstructures of [Ag3(μ-dppm)3(μ3-η1-C⋮C-C6H4-NO2-p)]2+ and [Ag3(μ-dppm)3(μ3-η1-C⋮C-C6H4-NO2-p)2]+ have been determined.
A convenient synthesis and the characterization of six new electronically and coordinatively unsaturated complexes of the formula [Ru2(CO)4(μ-H)(μ-PtBu2)(μ-L2)] (2b–g) (RuRu) is described exhibiting a close relation to the known [Ru2(CO)4(μ-H)(μ-PtBu2)(μ-dppm)] (2a). The complexes 2b–g were obtained in a kind of one-pot synthesis starting from [Ru3(CO)12] and PtBu2H in the first step followed by the