Spectroscopic and Electrochemical Probes of Electronic Coupling in Some Cyanide-Bridged Transition Metal Donor/Acceptor Complexes

1997 ◽  
Vol 101 (45) ◽  
pp. 8441-8459 ◽  
Author(s):  
Murielle A. Watzky ◽  
Ariel V. Macatangay ◽  
Richard A. Van Camp ◽  
Selma E. Mazzetto ◽  
Xiaoqing Song ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electronic Coupling ◽  
Donor Acceptor

scholarly journals Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Wang ◽  
Zhubin Hu ◽  
Xiancheng Nie ◽  
Linkun Huang ◽  
Miao Hui ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Electronic Coupling ◽  
Temperature Dependent ◽  
Molecular Systems ◽  
Donor And Acceptor ◽  
Theoretical Investigations ◽  
Donor Acceptor ◽  
And Control ◽  
Two Temperature

AbstractAggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theoretical investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global minima from the lowest triplet excited state (T1). The reported molecular construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom molecular systems with complex excited-state dynamics.

scholarly journals In-Depth Investigation of a Donor–Acceptor Interaction on the Heavy-Group-14@Group-13-Diyls in Transition-Metal Tetrylone Complexes: Structure, Bonding, and Property

ACS Omega ◽  
2020 ◽  
Vol 5 (33) ◽  
pp. 21271-21287
Author(s):  
Huynh Thi Phuong Loan ◽  
Thanh Q. Bui ◽  
Tran Thi Ai My ◽  
Nguyen Thi Thanh Hai ◽  
Duong Tuan Quang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Group 14 ◽  
Acceptor Interaction ◽  
Group 13 ◽  
Donor Acceptor ◽  
Heavy Group

Donor-Acceptor Couples and Late Transition Metal Complexes of Oxidation-Labile 1,4,5,8-Tetrakis(guanidino)naphthalene Superbases

2011 ◽  
Vol 2011 (10) ◽  
pp. 1593-1604 ◽  
Author(s):  
Viktoriia Vitske ◽  
Pascal Roquette ◽  
Simone Leingang ◽  
Christian Adam ◽  
Elisabeth Kaifer ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Late Transition Metal ◽  
Donor Acceptor ◽  
Late Transition

Origin of dual emission in σ-bridged donor–acceptor TADF compounds

2019 ◽  
Vol 7 (40) ◽  
pp. 12601-12609 ◽  
Author(s):  
Rokas Skaisgiris ◽  
Tomas Serevičius ◽  
Karolis Kazlauskas ◽  
Yan Geng ◽  
Chihaya Adachi ◽  
...  
Keyword(s):  
Electronic Coupling ◽  
Dual Emission ◽  
Donor And Acceptor ◽  
Donor Acceptor

Minimization of electronic coupling between donor and acceptor units in σ-spaced TADF compounds leads to emergence of unexpected emission mechanisms, deteriorating TADF properties.

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