Reaction of Molybdenum Hexa-carbonyl with Mercapto-pyridine (PySH) or Mercapto-pyridine Oxide (PyS→O) and Crystal Structure of [Et4N][Mo2(PyS)3(CO)5]

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2004,（11）
• 页码范围: 1291-1296
• 页数: 6页
• 语种: 英文

摘要

Mixed-valence dinuclear molybdenum complex [Et4N][Mo2(PyS)3(CO)5] (1) (PyS=C5H4NS) has been synthesized and characterized by crystallography. 1 crystallizes in monoclinic system with space group P21/c with a= 1.5769(11) nm, b= 1.3144(5) nm, c= 1.6935(10) nm; β= 111.20(4)°; V=3.2724 nm3; Z=4, Dc=1.61 g/cm3,μ=9.7 cm-1 and F(000)=1600. The final R=0.054 and wR=0.073, for 1811 observed reflection with I＞3σ (I). In compound 1, one chelating PyS ligand and two bridging PyS ligands are 3-electron and 5-electron donors, respectively, and two molybdenum atoms are located in different coordination environments resulting in mixed-valence state. The reaction mechanism of Mo(CO)6 with PySH and PyS→O (C5H5SN→O) was investigated and two reaction pathways were proposed.