Supramolecular interactions induced hinge-like motion of a metal-organic framework accompanied by anisotropic thermal expansion
Supramolecular interactions induced hinge-like motion of a metal-organic framework accompanied by anisotropic thermal expansion
复制标题
超分子相互作用诱导金属有机框架的铰链式运动并伴有各向异性热膨胀
DOI：
10.1039/c3dt53580k
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发表时间：
2014
影响因子：
4
通讯作者：
Canzhong Lu
中科院分区：
文献类型：
--
作者：
Lei Zhang;Xiaofei Kuang;Xiaoyuan Wu;Wenbin Yang;Canzhong Lu
A novel three-dimensional metal–organic framework (MOF), Ag4(tpt)4{δ-[Mo8O26]}·1.5H2O (A) (tpt = 2,4,6-tris(4-pyridyl)-1,3,5-triazine), possesses a ths-type topology with the hinge deformation mode. The single-crystal X-ray diffraction study shows that A and the dehydrated phase Ag4(tpt)4{δ-[Mo8O26]} (B) display distinct anisotropic thermal expansion with expansion in the b direction but contraction in the ac plane. This rare area negative thermal expansion (NTE) behavior is attributed to the hinged structure model and the supramolecular interactions (argentophilic interaction, π–π interaction) that act as the microscopic driving forces. In addition, supramolecular interactions also play a key role in thermochromic behavior of compound A.
