Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Bright green-to-yellow emitting Cu(i) complexes based on bis(2-pyridyl)phosphine oxides : Synthesis, structure and effective thermally activated-delayed fluorescence. / Artem'Ev, Alexander V.; Ryzhikov, Maxim R.; Taidakov, Ilya V. и др.
в: Dalton Transactions, Том 47, № 8, 20.02.2018, стр. 2701-2710.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Bright green-to-yellow emitting Cu(i) complexes based on bis(2-pyridyl)phosphine oxides
T2 - Synthesis, structure and effective thermally activated-delayed fluorescence
AU - Artem'Ev, Alexander V.
AU - Ryzhikov, Maxim R.
AU - Taidakov, Ilya V.
AU - Rakhmanova, Mariana I.
AU - Varaksina, Evgenia A.
AU - Bagryanskaya, Irina Yu
AU - Malysheva, Svetlana F.
AU - Belogorlova, Nataliya A.
PY - 2018/2/20
Y1 - 2018/2/20
N2 - A family of brightly luminescent dinuclear complexes of [Cu(μ2-X)(N^N)]2 type (X = I or SCN) has been synthesized in 76-90% yields by the reaction of bis(2-pyridyl)phosphine oxides (N^N) with the corresponding Cu(i) salts. The X-ray diffraction study reveals that the Cu2I2 core of the [Cu(μ2-I)(N^N)]2 complexes has either a butterfly- or rhomboid-shaped structure, while the eighth-membered [Cu(SCNNCS)Cu] ring in the [Cu2(SCN)2(N^N)]2 complexes is nearly planar. In the solid state, these compounds exhibit a strong green-to-yellow emission (λemmax = 536-592 nm) with high PLQYs (up to 63%) and short lifetimes (1.9-10.0 μs). The combined photophysical and DFT study indicates that the ambient-temperature emission of the complexes obtained can be assigned to the thermally activated-delayed fluorescence (TADF) from the 1(M + X)LCT excited state, while at 77 K, phosphorescence from the 3(M + X)LCT state is likely observed.
AB - A family of brightly luminescent dinuclear complexes of [Cu(μ2-X)(N^N)]2 type (X = I or SCN) has been synthesized in 76-90% yields by the reaction of bis(2-pyridyl)phosphine oxides (N^N) with the corresponding Cu(i) salts. The X-ray diffraction study reveals that the Cu2I2 core of the [Cu(μ2-I)(N^N)]2 complexes has either a butterfly- or rhomboid-shaped structure, while the eighth-membered [Cu(SCNNCS)Cu] ring in the [Cu2(SCN)2(N^N)]2 complexes is nearly planar. In the solid state, these compounds exhibit a strong green-to-yellow emission (λemmax = 536-592 nm) with high PLQYs (up to 63%) and short lifetimes (1.9-10.0 μs). The combined photophysical and DFT study indicates that the ambient-temperature emission of the complexes obtained can be assigned to the thermally activated-delayed fluorescence (TADF) from the 1(M + X)LCT excited state, while at 77 K, phosphorescence from the 3(M + X)LCT state is likely observed.
KW - COPPER IODIDE CLUSTERS
KW - TRANSFER RADICAL-ADDITION
KW - THERMOCHROMIC-LUMINESCENCE
KW - ELECTRON LOCALIZATION
KW - ELECTROCHEMICAL-CELLS
KW - METAL(I) COMPOUNDS
KW - CUPROUS COMPLEXES
KW - PHOSPHINE-LIGANDS
KW - VISIBLE-LIGHT
KW - DIVERSITY
UR - http://www.scopus.com/inward/record.url?scp=85042364195&partnerID=8YFLogxK
U2 - 10.1039/c7dt04758d
DO - 10.1039/c7dt04758d
M3 - Article
C2 - 29411811
AN - SCOPUS:85042364195
VL - 47
SP - 2701
EP - 2710
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 8
ER -
ID: 10420990