化学学报 ›› 1993, Vol. 51 ›› Issue (11): 1053-1058. 上一篇    下一篇

研究论文

异双核化合物PdMo(μ-Ph~2Ppy)~2(μ-CO)(CO)~2I~2.0.5CH~2Cl~2的合成和晶体结构

张正之;席华平;王宏根;王如骥   

  1. 南开大学元素有机化学研究所;南开大学中心实验室
  • 发布日期:1993-11-15

Synthesis and crystal structure of PdMo(μ-Ph~2Ppy)~2(μ -CO)(CO)~2I~2.0.5CH~2Cl~2

ZHANG ZHENGZHI;XI HUAPING;WANG HONGGEN;WANG RUJI   

  • Published:1993-11-15

本文合成了新的异双核化合物PdMo(μ-Ph~2Ppy)~2(μ-CO)(CO)~2I~2.0.5CH~2Cl~2, 对它进行了表征, 并测定其晶体和分子结构。该化合物属PI空间群, a=0.9500(2), b=1.1302(2), c=1.993(1)nm, α=102.82(3),β=101.21(3), γ=94.57(2)°, D~x=1.82g/cm^3, Z=2, R=0.064。晶体结构测定表明, 该化合物具有Pd-Mo键, 键长为0.28596(9)nm。如将Pd-Mo键考虑在内, Pd原子为d^9五配位构型, Mo原子为d^5七配位构型。两者的形式氧化态均为+1。

关键词: 吡啶 P, 晶体结构, 膦, 钼络合物, 双核络合物, 钯络合物

A new complex containing a Pd-Mo bond, PdMo(m-Ph2Ppy)2(m-CO)(CO)2I3.0.5CH2Cl2 (Ph2Ppy = 2-(diphenylphosphino)pyridine) was synthesized and characterized by elemental anal., IR, 31P NMR spectroscopies. The structure of the complex was determine by x-ray single crystal diffraction anal. The mol. crystd. in the triclinic space group P1 with a 0.9500(2), b 1.1302(2), c 1.993(1) nm, a 102.82(3), b 101.21(3), g 94.57(2)? V = 2.029(2) nm3, Z = 2, F(000) = 1036, m = 23.6 cm-1, R = 0.064 for 3492 unique reflections [I ?3s(I)]. The Pd atom is d9 5-coordinated and the Mo atom is d5 7-coordinated. Both metal atoms possess the +1 formal oxidation state. The mol. is chiral and belongs to the C1 point group.

Key words: PYRIDINE P, CRYSTAL STRUCTURE, PHOSPHINE, MOLYBDENUM COMPLEX, DINUCLEAR COMPLEX, PALLADIUM COMPLEX

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