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Article

Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine

Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
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Inorganics 2020, 8(9), 46; https://doi.org/10.3390/inorganics8090046
Received: 6 August 2020 / Revised: 22 August 2020 / Accepted: 24 August 2020 / Published: 26 August 2020
(This article belongs to the Special Issue Functional Coordination Polymers and Metal–Organic Frameworks)
Two Ag(I)-based metal-organic compounds have been synthesized exploiting 4,6-bis(diphenylphosphino)pyrimidine (L). The reaction of this ligand with AgNO3 and AgBF4 in acetonitrile produces dinuclear complex, [Ag2L2(MeCN)2(NO3)2] (1) and 1D coordination polymer, [Ag2L(MeCN)3]n(BF4)2n (2), respectively. In complex 1, µ2-P,P′-bridging coordination pattern of the ligand L is observed, whereas its µ4-P,N,N′,P′-coordination mode appears in 2. Both compounds exhibit pronounced thermochromic luminescence expressed by reversible changing of the emission chromaticity from a yellow at 300 K to an orange at 77 K. At room temperature, the emission lifetimes of 1 and 2 are 15.5 and 9.4 µs, the quantum efficiency being 18 and 56%, respectively. On account of temperature-dependent experimental data, the phenomenon was tentatively ascribed to alteration of the emission nature from thermally activated delayed fluorescence at 300 K to phosphoresce at 77 K. View Full-Text
Keywords: Ag(I) complexes; metal-organic coordination polymers; luminescence; thermally activated delayed fluorescence; phosphorescence; pyrimidylphosphines Ag(I) complexes; metal-organic coordination polymers; luminescence; thermally activated delayed fluorescence; phosphorescence; pyrimidylphosphines
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MDPI and ACS Style

Artem’ev, A.V.; Davydova, M.P.; Berezin, A.S.; Samsonenko, D.G. Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine. Inorganics 2020, 8, 46. https://doi.org/10.3390/inorganics8090046

AMA Style

Artem’ev AV, Davydova MP, Berezin AS, Samsonenko DG. Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine. Inorganics. 2020; 8(9):46. https://doi.org/10.3390/inorganics8090046

Chicago/Turabian Style

Artem’ev, Alexander V., Maria P. Davydova, Alexey S. Berezin, and Denis G. Samsonenko 2020. "Synthesis and Thermochromic Luminescence of Ag(I) Complexes Based on 4,6-Bis(diphenylphosphino)-Pyrimidine" Inorganics 8, no. 9: 46. https://doi.org/10.3390/inorganics8090046

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