Synthesis and Structure of Molybdenum citrato Cluster μ2-S Bridge

Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (10): 1464.

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Synthesis and Structure of Molybdenum citrato Cluster μ₂-S Bridge

LI Dong-Mei¹, LI Ya-Feng¹, XING Yong-Heng¹, WANG Ren-Zhang¹, LIU Shu-Qing¹, SUN Hao-Ran¹, WANG Tie-Gang¹, XU Ji-Qing^1,2, XING Yan³, LIN Yong-Hua³, JIA Heng-Qing³

1. Departmentof Chemistry, Jilin University, Changchun 130023, China;
2. State Key Laboratoryof Coordination Chemisty, Nanjing University, Nanjing 210093, China;
3. Changchun Instituteof Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:1999-06-18 Online:2000-10-24 Published:2000-10-24

Abstract

Abstract: Anew molybdenum-citrato cluster containing [Mo₂O₂( μ-S)₂(C₆H₅O₇)(C₆H₄O₇)]^5- anion was synthesized and characterized by elemental analysis, IR, UV-Vis spectra, XPS and X-ray diffraction. The parameters of the crystal structure of the compound are monoclinic, space group P2₁/c, a =2.3766(5) nm, b =1.3274(3) nm, c =2.2471(5) nm, β =118.21°, V =6.247(2) nm³, Z=8, D_c=2.128 g/cm³, F(000)=3984, μ =1694 cm^-1 , R=0.0831 and R_2,w=0.1549. The anion is binuclear molybdenum citrato complex with μ₂-S bridge. Each molybdenum atom pocesesses a distorted octahedral struture, which is coordinated with a terminal oxygen, two sulfur atoms, three oxygen atoms of hydroxyl, α-carboxylate, β-carboxylate from citrate.

Key words: Nitrogenase, Citric acid, Synthesis, Crystal structure, Binuclear molybdenum cluster with μ₂-S bridge

CLC Number:

O7.723

TrendMD:

LI Dong-Mei, LI Ya-Feng, XING Yong-Heng, WANG Ren-Zhang, LIU Shu-Qing, SUN Hao-Ran, WANG Tie-Gang, XU Ji-Qing, XING Yan, LIN Yong-Hua, JIA Heng-Qing. Synthesis and Structure of Molybdenum citrato Cluster μ₂-S Bridge[J]. Chem. J. Chinese Universities, 2000, 21(10): 1464.

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Synthesis and Structure of Molybdenum citrato Cluster μ₂-S Bridge

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