Structure-fluorescence relationships in pyrrole appended o-carborane crystalline materials  

作　　者：Dan Wang Gang Wang Ke Liu Jing Li Zhaolong Wang Jing Liu Liping Ding Rong Miao Yu Fang 

机构地区：[1]Key Laboratory of Applied Surface and Colloid Chemistry,Ministry of Education,School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi’an 710062,China

出　　处：《Chinese Chemical Letters》2022年第5期2532-2536,共5页中国化学快报（英文版）

基　　金：funding from the Natural Science Foundation of China (Nos. 22072084, 21820102005);111 Project (No. B14041);the Fundamental Research Funds for the Central Universities (Nos. GK202103048, GK202001005, 2020CSLY008);the Innovation Capability Support Program of Shaanxi (No. 2021TD-18)

摘　　要：Based on three rationally designed pyrrole-appended o-carborane derivatives,we present that fluores-cence properties of crystalline materials are highly dependent on intermolecular interaction and steric hinderance.Though the three molecules are similar in structure,single crystals of the three compounds showed obvious difference in molecular stacking and fluorescence behavior.Systematic studies indicate that fluorescence quantum yields,thermo-response as well as mechano-response are highly dependent on intermolecular interaction and steric hindrance.In the three crystalline materials,the CB-NMe crys-tals with weaker intermolecular interaction and looser molecular packing showed superior fluorescence quantum yield and temperature sensitivity.Accordingly,surface temperature detection strip with favor-able reversibility is prepared by doping CB-NMe into the polymer.In addition,the CB-NMe aggregates can be used for monitoring bovine serum albumin(BSA)denaturation,as temperature response of the aggregates can be reversed when co-assembled with BSA.

关 键 词：FLUORESCENCE o-Carborane crystal Steric hinderance Molecular packing Temperature sensing 

分 类 号：R318.08[医药卫生—生物医学工程] O657.3[医药卫生—基础医学]