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A luminescent supramolecular Cu2I2(NH3)2-sandwiched Cu3(pyrazolate)3 adduct as a temperature sensor
Shun-Ze Zhan1, Xia Jiang, Ji Zheng
1Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China. szzhan@stu.edu.cn.
Abstract:
A highly luminescent supramolecular Cu2I2(NH3)2-sandwiched Cu3(pyrazolate)3 adduct was reported as a temperature sensor. The adduct is stabilized by the synergy of intermolecular Cu3I (π acidbase), CuCu and NH interactions, to form a Cu8I2 cluster. The emission intensity exhibits a temperature-dependent effect in the solid state with a sensitivity of -0.685% K-1. DFT and TDDFT calculations revealed that the luminescence originates from the triplet state of Cu8I2 cluster-centered charge transfer (3CC).
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