Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Toward highly efficient TADF-active Cu(i), Ag(i) and Au(i) carbene complexes using symmetry-based design strategy. / Artem'ev, Alexander v.; Rogovoy, Maxim i.; Odud, Ilia M. и др.
в: Inorganic Chemistry Frontiers, Том 11, № 24, 29.10.2024, стр. 8778-8788.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Toward highly efficient TADF-active Cu(i), Ag(i) and Au(i) carbene complexes using symmetry-based design strategy
AU - Artem'ev, Alexander v.
AU - Rogovoy, Maxim i.
AU - Odud, Ilia M.
AU - Davydova, Maria p.
AU - Rakhmanova, Marianna i.
AU - Petrov, Pavel a.
AU - Brel, Valery K.
AU - Artushin, Oleg I.
AU - Brylev, Konstantin a.
AU - Samsonenko, Denis g.
AU - Berezin, Alexey s.
AU - Gorbunov, Dmitry e.
AU - Gritsan, Nina p.
N1 - This work was supported by Russian Science Foundation (Project 19-73-20196). N. P. G., D. E. G. and I. M. O. also acknowledge the Russian Science Foundation (Project No. 22-13-00077) for financial support of the computational part of this work and the Supercomputer Centre of Novosibirsk State University for the computational resources.
PY - 2024/10/29
Y1 - 2024/10/29
N2 - Coinage metal(i) complexes exhibiting thermally activated delayed fluorescence (TADF) have attracted worldwide attention as emitters for OLEDs. Reducing the emission lifetime and improving the quantum efficiency of such emitters is a current challenge in this hot field. To address this issue (challenge), a symmetry-based design strategy has been applied herein to obtain pseudo-symmetric complexes [M2(tdpb)(NHC)2]2+ (M = Cu, Ag, Au) scaffolded by 1,2,4,5-tetrakis(diphenylphosphino)benzene (tdpb) and N-heterocyclic carbene (NHC) ligands. In the solid state at ambient temperature, the synthesized compounds exhibit cyan to yellow TADF of the metal-to-ligand charge transfer type with excellent quantum yields (58-89%) and short decay times (2.5-15 mu s). It is shown that the symmetry-based design strategy leads to a significant increase in the radiative rate constants for the "dimers" [M2(tdpb)(NHC)2]2+ compared to the "monomers" [M(dppb)(NHC)]+ based on 1,2-bis(diphenylphosphino)benzene (dppb). The practical potential of the developed TADF emitters was also demonstrated through their application as innovative thermo- and vapor-chromic emission inks for advanced anti-counterfeiting labels.
AB - Coinage metal(i) complexes exhibiting thermally activated delayed fluorescence (TADF) have attracted worldwide attention as emitters for OLEDs. Reducing the emission lifetime and improving the quantum efficiency of such emitters is a current challenge in this hot field. To address this issue (challenge), a symmetry-based design strategy has been applied herein to obtain pseudo-symmetric complexes [M2(tdpb)(NHC)2]2+ (M = Cu, Ag, Au) scaffolded by 1,2,4,5-tetrakis(diphenylphosphino)benzene (tdpb) and N-heterocyclic carbene (NHC) ligands. In the solid state at ambient temperature, the synthesized compounds exhibit cyan to yellow TADF of the metal-to-ligand charge transfer type with excellent quantum yields (58-89%) and short decay times (2.5-15 mu s). It is shown that the symmetry-based design strategy leads to a significant increase in the radiative rate constants for the "dimers" [M2(tdpb)(NHC)2]2+ compared to the "monomers" [M(dppb)(NHC)]+ based on 1,2-bis(diphenylphosphino)benzene (dppb). The practical potential of the developed TADF emitters was also demonstrated through their application as innovative thermo- and vapor-chromic emission inks for advanced anti-counterfeiting labels.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85208383340&origin=inward&txGid=dc7d27c1e585eead554a60f1efe22f2a
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001346872400001
U2 - 10.1039/D4QI01996B
DO - 10.1039/D4QI01996B
M3 - Article
VL - 11
SP - 8778
EP - 8788
JO - Inorganic Chemistry Frontiers
JF - Inorganic Chemistry Frontiers
SN - 2052-1545
IS - 24
ER -
ID: 61201660