Fwu Ming Shen, Shie Fu Lush
Department of Medical Laboratory Science Biotechnology, Yuanpei University, No. 306, Yuanpei Street, Hsinchu, Taiwan 30015, ROC.
Department of Biotechnology, Yuanpei University, No. 306, Yuanpei Street, Hsinchu, Taiwan 30015, ROC.
Acta Crystallogr E Crystallogr Commun. 2020 Nov 24;76(Pt 12):1868-1870. doi: 10.1107/S2056989020014322. eCollection 2020 Dec 1.
In the title polymeric Zn compound, [Zn(CHO)(CHN)] , the Zn cation is coordinated by two N atoms from 1,2-bis-(pyridin-4-yl)ethane unit and four O atoms from two mandelate [or hy-droxy(phen-yl)acetate] anions in a slightly distorted octa-hedral coordination geometry. The 1,2-bis-(pyridin-4-yl)ethane unit bridges two Zn cations, related by an inversion centre, to form a polymeric chain along [110]. The crystal structure features extensive O-H⋯O and weak C-H ⋯O hydrogen bonds, with C-H ⋯ π inter-actions and π-π inter-actions also being present. The centroid-centroid distance between the phenyl ring of the mandelate group and the 1,2-bis-(pyridine-4-yl)ethane moiety is 4.951 (2) Å. The 1,2-bis-(pyridin-4-yl)ethane ligand is disordered over two positions, with a refined occupancy of 0.578 (14) for the major component.
在标题聚合物锌化合物[Zn(CHO)(CHN)]中，锌阳离子由1,2-双（吡啶-4-基）乙烷单元中的两个氮原子和来自两个扁桃酸根[或羟基（苯基）乙酸根]阴离子的四个氧原子配位，形成略微扭曲的八面体配位几何构型。1,2-双（吡啶-4-基）乙烷单元桥连两个通过对称中心相关的锌阳离子，沿[110]方向形成聚合物链。晶体结构具有广泛的O-H⋯O和弱的C-H⋯O氢键，同时还存在C-H⋯π相互作用和π-π相互作用。扁桃酸基团的苯环与1,2-双（吡啶-4-基）乙烷部分之间的质心-质心距离为4.951（2）Å。1,2-双（吡啶-4-基）乙烷配体在两个位置上无序，主要组分的精修占有率为0.578（14）。
