高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (7): 995.

• 论文 •    下一篇

富勒烯的电子模型物──丙烯酸甲酯的钼配合物(η2-CH2=CHCOOMe)2Mo(CO)2(biPy)的合成与结构表征

金祥林, 汤卡罗, 曾辉, 郑世俊, 唐有祺   

  1. 北京大学物理化学研究所, 北京 100871
  • 收稿日期:1997-01-13 出版日期:1997-07-24 发布日期:1997-07-24
  • 通讯作者: 汤卡罗.
  • 作者简介:金祥林, 男, 56岁, 教授.
  • 基金资助:

    国家自然科学基金

Synthesis and Structure Characterization of Molybdenum Complexes with an Electronic Model Compound of Fullerene──Methyl Acrylate (η2-CH2 =CHCOOMe)2,Mo (CO)2, (bipy)

JIN Xiang-Lin, TANG Ka-Luo, ZENG Hui, ZHENG Shi-Jun, TANG You-Qi   

  1. Institute of Physical Chemistry, Peking University, Beijing 100871
  • Received:1997-01-13 Online:1997-07-24 Published:1997-07-24

摘要: 合成了富勒烯的电子模型物─丙烯酸甲酯联吡啶二碳基合钼的2个几何异构体,用X射线单晶衍射法测定了它们的晶体结构,研究了它们的红外光谱.

关键词: 富勒烯, 丙烯酸甲酯, 钼配合物, 晶体结构, 几何异构体

Abstract: The title complexes were synthesized by the reaction of Mo (CO)4 (bipy) withmethyl acrylate, an electron-deficient alkene model compound of fullerene- Two crystals 1and 2 of a pair of geometrical isomers were obtained under different crystalization conditionsand characterized by XRDand IR.Crystal 1 belongs to the monoclinic system with spacegroup P21/n, a=0' 7800(2) nm, b= 1.9015(4) nm, c= 1.3996(2) nm, β= 1O3. 20(3)°,V=2.0210(8) nm3, Dc= 1.579 g/cm3, Z= 4.The final Ris 0.0235 for 3021 reflections[F>4.0 σ(F)].Crystal 2 belongs to the monoclinic system with space group P21/n, α =0.9075(2) nm, b=1.9491(4) nm, c=1.1291 (2) nm, β=100.52(3)°, V=1.9636(7)nm°, Dc= 1.686 g/cm3 , Z=4.The final Ris 0.0818 for 1473 reflections [F>4.0σ(F)].In the molecules of both crystals, molybdenum atom coordination is distorted octahedral.with the two COgroups cis to each orther, but each trans to a pyridyl group of 2,2' -bipyri-dine.The Mo atom is bound in an η2-fashion to C-Cdouble bonds of two methyl acrylatesin axial direction of the octahedron.The main difference in the two geometrical isomers isthat the methyl ester groups of the two methyl acrylate are rotated 180°

Key words: Fullerene, Methyl acrylate, Molybdenum complex, Crystal structure, Geomet-rical isomers

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