PMID- 33006821
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231110
IS  - 1521-3765 (Electronic)
IS  - 0947-6539 (Print)
IS  - 0947-6539 (Linking)
VI  - 26
IP  - 71
DP  - 2020 Dec 18
TI  - Thermally Activated Delayed Fluorescence from d(10) -Metal Carbene Complexes 
      through Intermolecular Charge Transfer and Multicolor Emission with a 
      Monomer-Dimer Equilibrium.
PG  - 17222-17229
LID - 10.1002/chem.202004106 [doi]
AB  - A series of two-coordinate Au(I) and Cu(I) complexes (3 a, 3 b and 5 a, 5 b) are 
      reported as new organometallic thermally activated delayed fluorescence (TADF) 
      emitters, which are based on the carbene-metal-carbazole model with a 
      pyridine-fused 1,2,3-triazolylidene (PyTz) ligand. PyTz features low steric 
      hindrance and a low-energy LUMO (LUMO=-1.47 eV) located over the pi* orbitals of 
      the whole ligand, which facilitates intermolecular charge transfer between a 
      donor (carbazole) and an accepter (PyTz). These compounds exhibit efficient TADF 
      with microsecond lifetimes. Temperature-dependent photoluminescence kinetics of 
      3 a supports a rather small energy gap between S(1) and T(1) (DeltaE S1-T1 =60 meV). 
      Further experiments reveal that there are dual-emission properties from a 
      monomer-dimer equilibrium in solution, exhibiting single-component multicolor 
      emission from blue to orange, including white-light emission.
CI  - (c) 2020 The Authors. Published by Wiley-VCH GmbH.
FAU - Cao, Lei
AU  - Cao L
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Huang, Shiqing
AU  - Huang S
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Liu, Wei
AU  - Liu W
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Zhao, Hongyan
AU  - Zhao H
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Xiong, Xiao-Gen
AU  - Xiong XG
AD  - Sino-French Institute for Nuclear Energy and Technology, Sun Yat-sen University, 
      Guangzhou, 510275, P.R. China.
FAU - Zhang, Jian-Ping
AU  - Zhang JP
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Fu, Li-Min
AU  - Fu LM
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
FAU - Yan, Xiaoyu
AU  - Yan X
AUID- ORCID: 0000-0003-3973-3669
AD  - Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China.
LA  - eng
GR  - 21602249/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20201118
PL  - Germany
TA  - Chemistry
JT  - Chemistry (Weinheim an der Bergstrasse, Germany)
JID - 9513783
SB  - IM
PMC - PMC7839463
OTO - NOTNLM
OT  - charge transfer
OT  - donor-acceptor systems
OT  - dual-emission systems
OT  - emission
OT  - fluorescence
COIS- The authors declare no conflict of interest.
EDAT- 2020/10/03 06:00
MHDA- 2020/10/03 06:01
PMCR- 2021/01/27
CRDT- 2020/10/02 12:10
PHST- 2020/09/10 00:00 [received]
PHST- 2020/10/03 06:00 [pubmed]
PHST- 2020/10/03 06:01 [medline]
PHST- 2020/10/02 12:10 [entrez]
PHST- 2021/01/27 00:00 [pmc-release]
AID - CHEM202004106 [pii]
AID - 10.1002/chem.202004106 [doi]
PST - ppublish
SO  - Chemistry. 2020 Dec 18;26(71):17222-17229. doi: 10.1002/chem.202004106. Epub 2020 
      Nov 18.