A luminescent three-dimensional coordination polymer (CP) of [Cd(pmd){Ag(CN)}] (1; pmd = pyrimidine) comprising two different coordination modes of Ag ions was synthesised herein. 1 exhibited thermochromic luminescence, accompanied by positive thermal elongation of the Ag⋯Ag distance. Moreover, 1 showed a bright phosphorescence with the highest photoluminescence quantum yield (), approximately 60% at room temperature, among previously reported phosphorescent Ag-based CPs or metal-organic frameworks.

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http://dx.doi.org/10.1039/d3cc00179bDOI Listing

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