Thermochromic luminescent properties of a tetrazole-functionalized iodocuprate without cuprophilic interaction


The 1-tetrazole-4-imidazole-benzene (HL) used as a tetrazole-functionalized spacer constructs 3-D [Cu-2(mu(3)-I)(L)](n) (1) with longer Cu center dot center dot center dot Cu distances to eliminate the existence of cuprophilic interaction. 1 shows important thermochromic luminescence and its emission maximum exhibits a gradual red shift with increasing temperature, indicating that 1 is a potential application for a luminescent thermometer with a wide range. Of particular interest, the thermochromic luminescent properties of the reported Cul-tetrazolate systems have not been investigated, while this work first reveals that Cul-tetrazolate system without cuprophilic interaction generates remarkable thermochromic luminescence. Moreover, 1 exhibits selectively photocatalytic degradation of methylene blue (MB) under UV light irradiation, and its density functional theory calculation has also been performed.



subject category

Chemistry; Engineering; Materials Science


Yang, LL; Zhou, J; Fu, LS

our authors


This work was supported by the NNSF of China (No. 21671029), the NSF of Chongqing (No. cstc2018jcyjAX0157), Program for Leading Talents of Scientific and Technological Innovation in Chongqing (No. CSTCCXLJRC201707), the Innovation Program for Chongqing's Overseas Returnees (No. ex2018008) and Program for Excellent Talents in Chongqing Higher Education Institutions. This work was also developed within the scope of the project CICECO-Aveiro Institute of Materials, FCT Ref. UID/CTM/50011/2019, financed by national funds through the FCTMCTES.

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