A New Pyridine-substituted Azadithiolate 2Fe_2S Complex Related to the Active Site of [FeFe]-hydroge

• 作 者: XU Fen-Fen FENG Ya-Nan DU Shao-Wu CHEN Yi-Feng
• 机 构: No.2 Middle School of Nanchang,State Key Laboratory of Structural Chemistry,Fujian Institute of Rese
• 出 处: 结构化学
• 发表日期: 2016年02期
• 关键词: substituted pyridine triclinic monoclinic treating bridged complexes heterocycli

A new 2Fe2 S complex[(2-C_5H_4N)N(μ-CH_2S)_2Fe_2(CO)_6](1) related to the active site of[FeFe]-hydrogenase was obtained by treating(HS)_2Fe_2(CO)_6 with(pyridin-2-ylazanediyl)dimethanol.Protonation occurred at the pyridine nitrogen atom when two equivalents of HBF_4·OEt_2acid were added to the toluene solution of 1,leading to the formation of[(2-C_5H_4NH)N(μ-CH_2S)_2Fe_2(CO)_6]·BF_4·OEt_2(1H~+),whose molecular structure was further established by singlecrystal X-ray analysis.Complex 1 crystallizes in the monoclinic system,space group P2_1/n with α=7.728(3),b = 11.825(4),c = 17.888(6) A,β= 92.968(5)°,while complex 1H~+ crystallizes in the triclinic system,space group P1 with a = 7.672(4),b = 10.382(5),c = 16.480(10) A,α=106.575(13),β= 93.18(3),γ=104.262(17)°.

A new 2Fe2 S complex [(2-C_5H_4N) N (μ-CH_2S) _2Fe_2 (CO) _6] (1) related to the active site of [FeFe] -hydrogenase was obtained by treating (pyridin-2-ylazanediyl) dimethanol.Protonation occurred at the pyridine nitrogen atom when two equivalents of HBF_4 · OEt_2acid were added to the toluene solution of 1, leading to the formation of [(2-C_5H_4NH) N (μ-CH_2S) (CO) _6] · BF_4 · OEt_2 (1H ~ +), which molecular structure was further established by singlecrystal X-ray analysis. Complex 1 crystallizes in the monoclinic system, space group P2_1 / n with α = 7.728 (3), b = 11.825 (4), c = 17.888 (6) A, β = 92.968 (5) °, while complex 1H ~ + crystallizes in the triclinic system, space group P1 with a = 7.672 (4), b = 10.382 (5) , c = 16.480 (10) A, α = 106.575 (13), β = 93.18 (3), γ = 104.262 (17) °.