文献类型：期刊文献

英文题名：Twisted-Planar-Twisted expanded porphyrinoid dimer as a rudimentary reaction-based methanol indicator

作者：Li, Qizhao[1,2];Li, Chengjie[1,2];Baryshnikov, Glib[3];Ding, Yubin[1,2];Zhao, Chengxi[1,2];Gu, Tingting[4];Sha, Feng[1,2];Liang, Xu[4];Zhu, Weihua[4];Wu, Xinyan[1,2];Agren, Hans[3];Sessler, Jonathan L.[5];Xie, Yongshu[1,2]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Mat & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Mat & Dynam Chem, Sch Chem & Mol Engn,Joint Int Res Lab Precision C, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]KTH Royal Inst Technol, Sch Biotechnol, SE-10691 Stockholm, Sweden;[4]Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China;[5]Univ Texas Austin, Dept Chem, Austin, TX 78712 USA

年份：2020

卷号：11

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000585935000006)】；

基金：This work at ECUST was financially supported by the Shanghai Municipal Science and Technology Major Project (Grant No. 2018SHZDZX03), the International Cooperation Program of Shanghai Science and Technology Committee (17520750100), NSFC (21971063, 21772041, 21702062, 21811530005), Program of Introducing Talents of Discipline to Universities (B160170), the Fundamental Research Funds for the Central Universities (222201717003), Program of Shanghai Academic Research Leader (20XD1401400), China Postdoctoral Science Foundation (2019TQ0092, 2020M671016), and Natural Science Foundation of Shanghai (20ZR1414100). The work in Austin was supported by the National Science Foundation (CHE-1807152 to J.L.S.) and the Robert A. Welch Foundation (F-0018 to J.L.S.). We thank the Research Center of Analysis and Test of East China University of Science and Technology for help with material characterization.

语种：英文

摘要：Directly linked porphyrin dimers have attracted considerable attention because of their intriguing electronic features. Most emphasis has been placed on either dimers with large dihedral angles between the constituent planar monomeric subunits or those with overall planarity, referred to as "Planar-Twisted-Planar" and "Planar-Planar-Planar", respectively. Herein, we report a "Twisted-Planar-Twisted" framework, the hexaphyrin dimer D that exists in a trans configuration. Treatment of D with MeOH affords two isomeric dimers, MD1 and MD2, both of which incorporate a methoxy moiety and exist in cis orientations with respect to the tethering linkage. The methanol-promoted conversion is accompanied by a readily discernible color change from green to brown and is not induced to an appreciable level by other alcohols. Dimer D thus acts as a rudimentary, albeit highly selective, reaction-based methanol indicator. This work provides a promising approach for constructing reaction-based chemosensors using porphyrinoid dimers of nonplanar subunits with biased reactivity. Directly linked porphyrin dimers show intriguing electronic features but emphasis has been placed on planar monomeric units. Here, the authors report a Twisted-Planar-Twisted framework which can undergo a cis-trans transformation accompanied by a colour change in presence of methanol, making this framework applicable as a methanol sensor.