一维双链4-氧-1(4H)-吡啶氮乙酸桥联铜配位聚合物[Cu(4-OPA)_2]_n的合成、结构及性能研究

Synthesis, Structure and Properties of 1D Double Chain Coordination Polymer [Cu(4-OPA)_2]_n Constructed by 4-oxo-1(4H)-pyridineacetate Ligand

A novel coordination polymer of [Cu(4-OPA)2]n (4-OPA-=4-oxo-1(4H)-pyridineacetate anion) was synthesized and characterized by elemental analysis, IR, TG, fluorescence and X-ray single crystal diffraction. The title complex crystallizes in triclinic with space group P1, a=0.713 17(14) nm, b=0.739 81(15) nm, c=0.753 02(15) nm, α=91.46(3)°, β=109.14(3)°, γ=111.31(3)°. V=0.344 92(17) nm3, Z=1, R=0.028 6, wR=0.080 3. The Cu atom occupies an inversion site in an octahedral environment, defined by two carbonyl O atoms and four carboxyl O atoms from different 4-OPA- ligands. Adjacent Cu髤 atoms are bridged by the 4-OPA- ligands, forming a one-dimensional double chain structure. The closest Cu...Cu distance is 0.850 6(3) nm. The results of TG and fluorescent analysis show that the title coordination polymer is stable under 262.8 ℃ and has two emission peaks at 422 and 484 nm. CCDC: 287038.

A novel coordination polymer of [Cu（4-OPA）2]n （4-OPA-=4-oxo-1（4H）-pyridineacetate anion） was synthesized and characterized by elemental analysis, IR, TG, fluorescence and X-ray single crystal diffraction. The title complex crystallizes in trielinie with space group P1, a=0.713 17（14） nm, b=0.739 81（15） nm, c=0.753 02（15） nm, α=91.46（3）°, β=109.14（3）°, γ=l 11.31（3）°, V=0.344 92（17） nm^3, Z=1, R=0.028 6, wR=0.080 3. The Cu atom occupies an inversion site in an oetahedral environment, defined by two earbonyl 0 atoms and four earboxyl 0 atoms from different 4-OPA- ligands. Adjacent Cu（II） atoms are bridged by the 4-OPA- ligands, forming a one-dimensional double chain structure. The closest Cu...Cu distance is 0.8506（3） nm. The results of TG and fluores- cent analysis show that the title coordination polymer is stable under 262.8 ℃ and has two emission peaks at 422 and 484 nm. CCDC： 287038.