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

• Autor(a) principal: Yang, Li-li
• Data de Publicação: 2020
• Outros Autores: Zhou, Jian, Fu, Lianshe
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/37569
• topic: Hydrothermal syntheses; Iodocuprates; Structure; Luminescent properties

The 1-tetrazole-4-imidazole-benzene (HL) used as a tetrazole-functionalized spacer constructs 3-D [Cu2(μ3-I)(L)]n (1) with longer Cu⋯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 CuI-tetrazolate systems have not been investigated, while this work first reveals that CuI-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.