摘要
分别用2,3-二甲基吡嗪,2,5-二甲基吡嗪,四甲基吡嗪做配体,以[Pd(CN)4]2-为构筑基元,与Fe(ClO4)2通过溶液缓慢扩散法制备了三种化合物的单晶.通过分析这三种化合物的晶体结构,发现由于吡嗪上取代基的空间位阻效应,使这些吡嗪衍生物的配位能力比水分子弱,因而形成了水为配体、吡嗪衍生物为客体分子,具有通式为Fe(H2O)2Pd(CN)4.G的二维Hofmann-H2O类配位聚合物.
Single crystals of three kinds of compounds have been obtained by the slow diffusion of solutions of iron(II) perchlorate,[Pd(CN)4]2 and pyrazine derivatives such as 2,3-dimethylpyrazine,2,5dimethylpyrazine,tetramethylpyrazine.Based on their crystal structures,we found that 2D Hofmann-H2Otype coordination polymers with the formula of Fe(H2O)2Pd(CN)4.G were formed by H2O,in which pyrazine derivatives act as guest molecules due to the steric hindrance of substituent groups of pyrazine.
出处
《新疆大学学报(自然科学版)》
CAS
2011年第4期379-382,388,共5页
Journal of Xinjiang University(Natural Science Edition)
基金
国家自然科学基金(21061014)
教育部重点项目(209138)
教育部新世纪优秀人才支持计划(NCET-09-0904)
新疆大学自然科学基金项目(2009211B02)资助