Shi Yi-Xiang, Li Wu-Xiang, Chen Huan-Huan, Young David James, Zhang Wen-Hua, Lang Jian-Ping
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
Chem Commun (Camb). 2017 May 17;53(40):5515-5518. doi: 10.1039/c7cc02704d.
A protonated mononuclear complex [Zn(Hbpvp)Cl] (1) is assembled by solvothermal reaction of Zn(NO)·6HO with 3,5-bis-(2-(pyridin-4-yl)vinyl)pyridine (bpvp) in DMF/HO with a few drops of concentrated HCl added. Hydrogen-bonded zigzag chains of 1 crystallize over time to form large-size hollow hexagonal tubular crystals whose evolution from irregular crystal seeds is monitored by SEM and PXRD. Upon UV light irradiation, single crystals of 1 undergo a stereoselective [2+2] photocycloaddition while its Methyl Blue-coated crystals keep intact.
通过在二甲基甲酰胺/水体系中加入几滴浓盐酸，使硝酸锌六水合物与3,5-双（2-（吡啶-4-基）乙烯基）吡啶（bpvp）进行溶剂热反应，组装得到质子化单核配合物[Zn(Hbpvp)Cl]（1）。随着时间的推移，配合物1通过氢键形成锯齿链，结晶生成大尺寸的中空六边形管状晶体，通过扫描电子显微镜（SEM）和粉末X射线衍射（PXRD）监测其从不规则晶种的演变过程。在紫外光照射下，配合物1的单晶发生立体选择性[2+2]光环加成反应，而其包覆甲基蓝的晶体则保持完整。
