邻-(4-甲基苯甲酰基)-苯甲酸双核镉(Ⅱ)配合物的水热合成、晶体结构及热稳定性

<正>羧酸因其具有多样的配位方式、羧基氧原子易参与形成氢键以及本身能减缓抗衡离子效应的负电性而被广泛应用于配合物的合成中1-4]。目前,研究主要集中于苯甲酸及其衍生物构筑的配合物,而其

Hydrothermal Synthesis, Crystal Structure and Thermal Stability of Binuclear Cadmium Complex with the o-Methylbenzoyl-benzoic Acid

One novel binuclear cadmium(Ⅱ) Complex Cd_2(phen)_2(C_(15)H_(11)O_3)_4 ]·(H_2O) with o-methylbenzoyl-benzoic acid and 1,10-phenanthroline(phen) has been synthesized by means of hydrothermal way and characterized.It was characterized as crystallizing in the Triclinic space group P1,with a= 1.1155(2)nm,b= 1.2069(2)nm,c= 1.4355(3) nm,α=99.79(3)°,β=111.27(3)°,γ=98.17(3)°,V=1.730 5(6) nm~3,D_c=1.514 g·cm~(-3),Z=1,F(000)=804.Final GooF=1.060,R_1=0.024 7,wR_2=0.063 2.The crystal structure shows that the cadmium ion is coordinated with four oxygen atoms from three o-methylbenzoyl-benzoic acid radical,two nitrogen atoms from one 1,10-phenanthroline molecule,forming a distorted octahedral coordination geometry.There exist two coordination types with the o-methylbenzoyl-benzoic acid,which coordination with the center cadmium ion with the bridging and chelating bidentatein types.Two o-methylbenzoyl-benzoic acid molecules and two cadmium(Ⅱ) ions form a octatomic ring stable under 220.0℃.CCDC:741934.