首页> 中文期刊> 《无机化学学报》 >1,3-金刚烷二乙酸配体构筑的两个镉配合物的合成、表征及晶体结构

1,3-金刚烷二乙酸配体构筑的两个镉配合物的合成、表征及晶体结构

         

摘要

Two new one-dimensional coordination polymers,[CdL(2,2'-bipy)]_n·nH_2O(1)and[CdL(2,2'-bipy)(H_2O)]_n·4nH_2O(2)(H_2L=1,3-adamantanediacetie acid,2,2'bipy=2,2'bipyridine),have been synthesized and characterized by single-crystal X-ray diffraction.Complex 1 belongs to triclinic system,space group p1 with a=1.0372(1)nm,b=1.043 2(1)nm,c=1.0907(1)am,α=90.616(4)°,β=92.526(4)°,γ=108.756(4)°,V=1.1160(1)nm~3,Z=2,M_r=536.88,F(000)=548,D_c=1.598g·cm~(-3),μ=1.017mm~(-1),the final R=0.0220 and wR=0.054 9 for 4834 observed reflections (I>2σ(Ⅰ)).Complex 2 belongs to monoclinic system,space group P2_1 with α=1.366 3(1)nm,b=1.413 2(1)nm,c=1.5102(1)nm,β=114.611(2)°,V=2.6511(1)nm~3,Z=4,M_r=608.95,F(000)=1256,C_c=1.526g·cm~(-3),μ=0.877mm~(-1),the final R=0.030 1 and wR=0.0712 for 4592 observed reflections(I>2σ(I)).The cadmium ion is seven.coordinated in a distorted monocapped triangular prismatic arrangement for 1 and in a distorted pentagonal.bipyramidal arrangement for 2,and 1,3-adamantanediacetic acids act as the bridge to link the cadmiums to 1D chains.Noncovalent interactions, such as hydrogen-bonding and aromatic π-π interactions,lead the complexes to supramoleeular architectures.The luminescent property for 1 has also been studied.%合成了2个一维Cd(Ⅱ)配合物[CdL(2,2'-bipy)]_n·nH20(1)和 [CdL(2,2'-bipy)(H_2O)]_n·4nH_2O(2)(H2L为1,3金刚烷二乙酸),并经X-射线单晶衍射方法测定了它们的晶体结构.在配合物1中,中心金属Cd(Ⅱ)为七配位的单帽三棱柱结构,而在配合物2中,Cd(Ⅱ)为七配位的五角双锥结构.1,3金刚烷二乙酸根作为桥联配体连接中心金属cd(Ⅱ)离子形成一维链.同时通过氢键和π-π堆积作用形成三维超分子结构.研究了配合物1的荧光光谱.

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