Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Heteroleptic ionic copper(I) complexes based on pyrazolo[1,5-A] [1,10]phenanthrolines: synthesis, structure, and photoluminescence. / Виноградова, Катерина Александровна; Рахманова, Мариана Ивановна; Тайгина, Марина Дмитриевна и др.
в: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, Том 49, № 12, 2024, стр. 567-578.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Heteroleptic ionic copper(I) complexes based on pyrazolo[1,5-A] [1,10]phenanthrolines: synthesis, structure, and photoluminescence
AU - Виноградова, Катерина Александровна
AU - Рахманова, Мариана Ивановна
AU - Тайгина, Марина Дмитриевна
AU - Первухина, Наталья Викторовна
AU - Naumov, D. Yu
AU - Sannikova, Victoria A.
AU - Филиппов, Игорь Романович
AU - Колыбалов, Дмитрий Сергеевич
AU - Воробьев, Алексей Юрьевич
N1 - The study was supported by the Russian Science Foundation (Project no. 22-73-00255). Публикация для корректировки.
PY - 2024
Y1 - 2024
N2 - Heteroleptic copper(I) tetrafluoroborate complexes with pyrazolo[1,5-a][1,10]phenanthrolines (Ln, n = 1–3) and bis[(2-diphenylphosphino)phenyl] ether (POP) were synthesized and structurally characterized. The coordination compounds with the general formula [CuLn(POP)]BF4·Solv (n =1, Solv =0.5MeCN, complex I; n = 2, Solv = 0.5CH2Cl2, complex II; n = 3, Solv = 1.25Et2O, complex III·Et2O) were prepared by the reaction of CuBF4 with Ln and POP in organic solvents (MeCN/CH2Cl2/Et2O) at 1 : 1 : 1 molar ratio. Compound III·Et2O gradually loses solvate molecules to be converted to the complex [CuL3(POP)]BF4 (III). According to single-crystal X-ray diffraction data, the complexes (I, II, III·Et2O) are ionic; the copper atom in the [CuLn(POP)]+ cation is located in a distorted tetrahedral environment (CuN2P2). The photoluminescence properties of the obtained complexes (I–III) were studied in the solid state and in solution. In the absorption spectra of the complexes, a charge transfer band is observed at 380–385 nm; excitation in this range gives rise to two emission bands at 480 and 650 nm in solution. In the solid state, the complexes show photoluminescence only in the red range (λmax = 600–610 nm) with microsecond lifetimes. It was Found that complexes I and III with a more regular tetrahedral environment have quantum yields an order of magnitude higher than the quantum yield observd for complex II.
AB - Heteroleptic copper(I) tetrafluoroborate complexes with pyrazolo[1,5-a][1,10]phenanthrolines (Ln, n = 1–3) and bis[(2-diphenylphosphino)phenyl] ether (POP) were synthesized and structurally characterized. The coordination compounds with the general formula [CuLn(POP)]BF4·Solv (n =1, Solv =0.5MeCN, complex I; n = 2, Solv = 0.5CH2Cl2, complex II; n = 3, Solv = 1.25Et2O, complex III·Et2O) were prepared by the reaction of CuBF4 with Ln and POP in organic solvents (MeCN/CH2Cl2/Et2O) at 1 : 1 : 1 molar ratio. Compound III·Et2O gradually loses solvate molecules to be converted to the complex [CuL3(POP)]BF4 (III). According to single-crystal X-ray diffraction data, the complexes (I, II, III·Et2O) are ionic; the copper atom in the [CuLn(POP)]+ cation is located in a distorted tetrahedral environment (CuN2P2). The photoluminescence properties of the obtained complexes (I–III) were studied in the solid state and in solution. In the absorption spectra of the complexes, a charge transfer band is observed at 380–385 nm; excitation in this range gives rise to two emission bands at 480 and 650 nm in solution. In the solid state, the complexes show photoluminescence only in the red range (λmax = 600–610 nm) with microsecond lifetimes. It was Found that complexes I and III with a more regular tetrahedral environment have quantum yields an order of magnitude higher than the quantum yield observd for complex II.
U2 - 10.1134/S1070328424600657
DO - 10.1134/S1070328424600657
M3 - Article
VL - 49
SP - 567
EP - 578
JO - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
JF - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
SN - 1070-3284
IS - 12
ER -
ID: 60724127