Synthesis and crystal structure of a copper coordination polymer [(Cu(btapo)2BrCH3OH)+Br−]n (btapo=1,3-bis(benzotriazol-1-yl) propan-2-ol)
作者:Guo-Fang Zhang、Yin-Li Dou、Jiang-Bo She、Mai-Hua Yin
DOI:10.1007/s10870-006-9152-y
日期:2006.12.27
A new coordination polymer [(Cu(btapo)2BrCH3OH)+Br−]n (btapo = 1,3-bis(benzotria- zol-1-yl) propan-2-ol) was synthesized by the reaction of CuBr2 and btapo, a new ligand synthesized in our laboratory, in THF. Its structure was determined by single-crystal X-ray crystallography. It crystallizes in tetragonal I4(1)/a space group with the crystal cell parameters of a=11.987(9) Å, c=54.24(4) Å, V=7794(10) Å3, and Z=8. The crystal X-ray analysis shows that each copper atom is five-coordinated with a bromine atom and four nitrogen atoms from four ligands to form a slightly distorted square pyramid. Each ligand bridges two copper atoms to form a two-strand helical chain. The chains are further extended to a three-dimensional network by the hydrogen bonds between the hydroxyl groups and the bromine anions.
通过 CuBr2 与本实验室合成的一种新配体 btapo 在 THF 中的反应,合成了一种新的配位聚合物 [(Cu(btapo)2BrCH3OH)+Br-]n (btapo = 1,3-双(苯并三唑-1-基)丙-2-醇)。它的结构是通过单晶 X 射线晶体学确定的。它在四方 I4(1)/a 空间群中结晶,晶胞参数为 a=11.987(9) Å,c=54.24(4) Å,V=7794(10) Å3,Z=8。晶体 X 射线分析表明,每个铜原子与四个配体的一个溴原子和四个氮原子五配位,形成一个略微扭曲的正方金字塔。每个配体连接两个铜原子,形成一条双股螺旋链。这些链通过羟基和溴阴离子之间的氢键进一步延伸成三维网络。