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• W3137449721 abstract "• Reaction of [Cu(MeCN) 4 ]PF 6 with diphenyl(2-pyrimidyl)phosphine (L) and 1,4-dicyanobenzene (DCB) produces either 1D coordination polymer [Cu 2 L 3 (DCB)] n (PF 6 ) 2n or dinuclear complex [Cu 2 L 6 (DCB)](PF 6 ) 2 . • At 300 K, these compounds emits green luminescence with PLQYs are 16% and 71% for [Cu 2 L 3 (DCB)] n (PF 6 ) 2n and Cu 2 L 6 (DCB)](PF 6 ) 2 , respectively. One-dimensional coordination polymer [Cu 2 L 3 (DCB)] n (PF 6 ) 2n ( 1 ) and dinuclear complex [Cu 2 L 6 (DCB)](PF 6 ) 2 ( 2 ) have been synthesized through three-component reaction between [Cu(MeCN) 4 ]PF 6 , diphenyl(2-pyrimidyl)phosphine (L) and 1,4-dicyanobenzene (DCB). The DCB ligand within these products acts as a N , N’ -linker connecting two [CuL 3 ] + cations in 2 , and assembling the alternating [Cu 2 L 3 ] 2+ units of 1 into a 1D chain. At ambient temperature, both 1 and 2 emit green and turquoise luminescence, respectively, with quantum yields of 16 and 71%. At 300 K, the emission lifetimes of 1 and 2 are 21 and 14 μs, and upon cooling to 77 K, they increase to 600 and 1420 μs, accordingly. Basing on temperature-dependent photophysical data and DFT computations, the emission of the title complexes is tentatively ascribed to thermally activated delayed fluorescence. The Δ(S 1 –T 1 ) energy gaps for 1 and 2 are estimated to be 670 and 1250 cm −1 ." @default.
• W3137449721 created "2021-03-29" @default.
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• W3137449721 date "2021-06-01" @default.
• W3137449721 modified "2023-10-03" @default.
• W3137449721 title "Cu(I) complexes designed on 2-pyrimidylphosphine and 1,4-dicyanobenzene: Synthesis and thermally activated delayed fluorescence" @default.
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• W3137449721 doi "https://doi.org/10.1016/j.ica.2021.120347" @default.
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