Mukhopadhyay Rahul Dev, Praveen Vakayil K, Hazra Arpan, Maji Tapas Kumar, Ajayaghosh Ayyappanpillai
Photosciences and Photonics Group , Chemical Sciences and Technology Division , India . Email:
Academy of Scientific and Innovative Research (AcSIR) , CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum-695019 , India.
Chem Sci. 2015 Nov 1;6(11):6583-6591. doi: 10.1039/c5sc02233a. Epub 2015 Aug 12.
Control over the self-assembly process of porous organic-inorganic hybrids often leads to unprecedented polymorphism and properties. Herein we demonstrate how light can be a powerful tool to intervene in the kinetically controlled mesoscale self-assembly of a coordination polymeric gelator. Ultraviolet light induced coordination modulation photoisomerisation of an azobenzene based dicarboxylate linker followed by aggregation mediated crystal growth resulted in two distinct morphological forms (flowers and stars), which show subtle differences in their physical properties.
对多孔有机-无机杂化物自组装过程的控制常常会带来前所未有的多晶型现象和性质。在此,我们展示了光如何能够成为一种强大的工具,用于干预配位聚合物凝胶剂的动力学控制中尺度自组装。紫外光诱导基于偶氮苯的二羧酸连接体的配位调制光异构化,随后通过聚集介导的晶体生长产生了两种不同的形态形式(花状和星状),它们在物理性质上表现出细微差异。