两种新型Cu(Ⅱ)混配聚合物的合成和晶体结构(英文)

Synthesis and Crystal Structures of Two Novel Copper(Ⅱ) Coordination Polymers Constructed from Different Ligands

用水热法合成了2种新型的配位聚合物[Cu(4-Pya)(2,4-PydcH)]n(1)和[Cu2(2,6-Ndc)2(Bpobp)]n(2)(4-Hpya=4-吡啶羧酸,2,4-pydcH2=吡啶-2,4-二羧酸,2,6-H2ndc=2,6-萘二酸,Bpobp=4,4′-二(3-吡啶羟基)-联苯胺),并测定了其晶体结构。1属于正交晶系,Pna21空间群,晶胞参数a=2.13820(2)nm,b=0.99060(1)nm,c=0.60840(1)nm,V=1.28865(3)nm3,Z=4,R1=0.023,wR2=0.067。2属于三斜晶系,P1空间群,晶胞参数a=0.8102(3)nm,b=0.9979(4)nm,c=1.2705(5)nm,α=86.282(6)°,β=73.517(5)°,γ=89.107(6)°,V=0.9829(7)nm3,Z=2,R1=0.082,wR2=0.1602。配合物1为三维结构,其中五配位的铜为扭曲的四方锥构型。配合物2展示了由车轮状二铜结构单元连接而成的非互穿的三维网络结构。

Two novel coordination polymers of [Cu（4-Pya）（2,4-PydcH）]n （1） and [Cu2（2,6-Ndc）2（Bpobp）]n （2） （4-Hpya= 4-pyridinecarboxylic acid, 2,4-pydcH2 =pyridine-2,4-dicarboxylic acid, 2,6-Ndc =2,6-naphthalenedicarboxylate, Bpobp=4,4′-bis（3-pyridoxy）-biphenyl）） have been hydrothermally prepared by the reaction of Cu（NO3）2·3H2O and mixed ligands, and characterized by single crystal X-ray diffraction. 1 crystallizes in the orthorhombic system, and the space group is Pna21, with the crystal cell parameters a=2.138 20（2） nm, b=0.990 60（1） nm, c=0.608 40（1） nm, V=1.288 65（3） nm3, Z=4, R1=0.023, wR2=0.067. 2 crystallizes in the triclinic system with space group P1, a=0.810 2（3） nm, b=0.997 9（4） nm, c=1.270 5（5） nm, α=86.282（6）°, β=73.517（5）°, γ=89.107（6）°, and V=0.982 9（7） nm3, Z=2, R1= 0.082, wR2=0.160 2. Complex 1 displays a three-dimensional framework, in which the five-coordinated Cu2＋ shows distorted square pyramidal geometry. Complex 2 reveals a noninterpenetrating three-dimensional framework structure based on the dicopper paddle-wheel building units.