Diiron models for active site of FeFe-hydrogenase armed with one or two chlorine butynyl groups: Synthesis, structures and electrochemistry - Details

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Abstract：

Two　new　model　complexes　related　to　the　[FeFe]-hydrogenase　active　site　(μ-SCH2CCCH2Cl)2Fe2(CO)6　(1)　and　(μ-SC2H5)(μ-SCH2CCCH2Cl)Fe2(CO)6　(2)　were　obtained　by　treating　(μ-LiS)2Fe2(CO)6　with　1,　4-dichloro-2-butyne.　By　controllable　CO　displacement　of　1　or　2　with　PPh3,　mono-　and　di-substituted　complexes,　namely　[(μ-SCH2CCCH2Cl)2Fe2(CO)6−X　(PPh3)X]　(3,　X　=　1;　5,　X　=　2),　and　[(μ-SC2H5)(μ-SCH2CCCH2Cl)Fe2(CO)6−X(PPh3)X]　(4,　X　=　1;　6,　X　=　2)　could　be　prepared　in　moderate　yields.　Treatment　of　1　or　2　with　bis(diphenylphosphino)ethane　(dppe)　afforded　a　double　butterfly　complex　[(μ-SCH2CCCH2Cl)2Fe2(CO)5]2(μ-dppe)　(7)　and　[(μ-SC2H5)(μ-SCH2CCCH2Cl)Fe2(CO)5]2(μ-dppe)　(8),　respectively.　These　molecular　structures　were　characterized　by　FT-IR,　1H,　31P　NMR　spectra　and　the　molecular　structures　of　complexes　1,　3,　6　and　8　were　determined　by　single　crystal　X-ray　analyses.　The　electrochemistry　of　1–8　was　studied　and　the　electrocatalytic　property　of　1　was　investigated　for　proton　reduction　in　the　presence　of　acetic　acid.　©　2018　Elsevier　B.V.

Keyword：

Bioinorganic chemistry; Crystal structure; Diiron dithiolato complexes; Model complexes; [FeFe] hydrogenase

Community：

[ 1 ] [Wen, N.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
[ 2 ] [Zhang, L.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
[ 3 ] [Lin, J.-D.]Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
[ 4 ] [Feng, Y.-N.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
[ 5 ] [Cao, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
[ 6 ] [Wen, C.-L.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
[ 7 ] [Wei, Y.]Department of Chemistry and the Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing, 100084, China

Reprint 's Address：

[Wen, N.]College of Materials Science and Engineering, Fuzhou UniversityChina

Email：

wennaa@fzu.edu.cn

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Source ：

Inorganica Chimica Acta

ISSN： 0020-1693

Year： 2019

Volume： 486

Page： 508-517

2 . 3 0 4

JCR@2019

2 . 7 0 0

JCR@2023

ESI HC Threshold：184

JCR Journal Grade：2

CAS Journal Grade：3

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WoS CC Cited Count：

SCOPUS Cited Count： 3

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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