150174-17-7Relevant academic research and scientific papers
Synthesis and molecular structures of di- and trinuclear molybdenum complexes containing pyridine-2-thiolato (pyS) ligand
Shi, Youmao,Lu, Shiwei,Guo, Hefu,Wu, Qiangjing,Hu, Ninghai
, p. 183 - 189 (1996)
Dinuclear complexes [Mo2(μ-pyS)2(CO)4(PPh3)2] (1), [Mo2(μ-pyS)2(CO)5(PPh3)] (2) and a trace quality of trinuclear complex [Mo3(μ-pyS)2(μ3-pyS)2(CO)6] (3) were obtained from the reaction of [Mo(CO)3(MeCN)3] with pyridine-2-thione (pySH) and PPh3 in THF. The crystal structures of 1 · 2C7H8 and 3 ·; C7H8 have been determined by X-ray diffraction studies. Crystals of 1 · 2C7H8 are monoclinic, space group C2/c and Z = 4, with a = 18.797(3), b = 11.143(4), c = 28.157(7) A?, β = 101.23(2)°. The structure was refined to R = 0.050 and Rw = 0.057 for 3146 observed reflections. Crystals of 3 · C7H8 are monoclinic, space group P21/a and Z = 4, with a = 13.912(2), b = 17.161(2), c = 15.577(3) A?, β = 101.17(1)°. The structure was refined to R = 0.046 and Rw = 0.051 for 4357 observed reflections. The molecule of 1 consists of two Mo(CO)2(PPh3) fragments linked by an Mo-Mo bond (2.974(2) A?) and by two doubly-bridging pyS ligands. The compound 3 contains a bent open geometry of three molybdenum atoms (Mo(1)-Mo(2)-Mo(3) angle 122.99(3)°) linked by two Mo-Mo bonds (2.943(1) and 2.950(1) A?) and by two doubly- and two triply-bridging pyS ligands.
