Compound 4 features a 2-fold interpenetrating 3D framework. Simultaneous TG-DSC techniques were applied to assess the thermal decomposition behavior of compounds 1–4. TG measurements indicate that compounds show higher stability as the interpenetrating number increase. The thermal analysis kinetic parameters (apparent activation energy E and the pre-exponential factor A) of skeleton collapse for the
四种互穿配位聚合物,即[Zn(bib)0.5(2,6-ndc)] n(1),[Cd(bib)(2,6-ndc)]·2H 2 O} n(2), [Cd 2(bib)2(1,4-ndc)2 ]·H 2 O} n(3),[Ni 2(bib)1.5(1,4-ndc)2(H 2 O)] n(4),(围嘴= 1,4-双(2-甲基-
咪唑-1-基)
丁烷,1,4-H 2 ndc =
萘-1,4-二
羧酸,2,6-H 2ndc =
萘-2,6-二
羧酸)是在溶剂热条件下合成的。通过元素分析,红外光谱,单晶和粉末X射线衍射对它们的结构进行了表征。结构分析表明,化合物1表现出具有pcu拓扑结构的3倍互穿3D网络。化合物2呈现5倍互穿的3D dia框架。化合物3显示了一个不寻常的[2 + 2] 4倍互穿3D dia框架。化合物4具有2互穿3D框架。同时TG-
DSC技术被应用到评估化合物的热分解行为1 - 4。TG测量表