Two-State Intramolecular Charge Transfer (ICT) with 3,5-Dimethyl-4-(dimethylamino)benzonitrile (MMD) and Its Meta-Isomer mMMD. Ground State Amino Twist Not Essential for ICT

2015 ◽  
Vol 119 (49) ◽  
pp. 11820-11836 ◽  
Author(s):  
Sergey I. Druzhinin ◽  
Victor A. Galievsky ◽  
Attila Demeter ◽  
Sergey A. Kovalenko ◽  
Tamara Senyushkina ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Intramolecular Charge Transfer ◽  
Meta Isomer

Planarized intramolecular charge transfer on triphenylamine-modified pyrazine and its application in organic light-emitting diodes

2020 ◽  
Vol 8 (14) ◽  
pp. 4754-4762 ◽  
Author(s):  
Bing Zhang ◽  
Haozhong Wu ◽  
Zhiming Wang ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Ground State ◽  
Light Emitting Diodes ◽  
Intramolecular Charge Transfer ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

PLICT molecules have twisted structures in the ground state, which are conducive to transport, while the planar conformations of the excited states facilitate radiation. Based on these advantages, they can serve as excellent emitters and hosts in OLEDs.

Effect of vinylene and 1,4-phenylene spacers on efficiency of the ground-state intramolecular charge-transfer in enlarged 4-dimethylamino-1-methylpyridinium cations

2009 ◽  
Vol 20 (4) ◽  
pp. 655-662 ◽  
Author(s):  
Ryszard Gawinecki ◽  
Branko Stanovnik ◽  
Arto Valkonen ◽  
Erkki Kolehmainen ◽  
Borys Ośmiałowski ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Intramolecular Charge Transfer

Synthesis and Unprecedented Electro-Optic Response Properties of Twisted π-System Chromophores

2005 ◽  
Vol 866 ◽  
Author(s):  
Hu Kang ◽  
Antonio Facchetti ◽  
Hua Jiang ◽  
Peiwang Zhu ◽  
Tobin J. Marks
Keyword(s):  
Charge Transfer ◽  
Structural Characteristic ◽  
Oscillator Strength ◽  
Ground State ◽  
Nonlinear Optical ◽  
Intramolecular Charge Transfer ◽  
Low Energy ◽  
Twisted Intramolecular Charge Transfer ◽  
Response Properties ◽  
Electro Optic

AbstractA series of unconventional twisted intramolecular charge-transfer (TICT) chromophores was designed and synthesized. These chromophores exhibit ultra-large first hyperpolarizabilities. The structural characteristic that promotes this unusual nonlinear optical response is a sterochemically enforced reduction of the D- π-A conjugation that enforces zwitterionic behavior in the ground state and provides a low-energy, large-oscillator strength intramolecular excitation feature. The consequence is that molecules with relatively small numbers of π-electrons exhibit responses far larger than those of traditional planar π-conjugated chromophores. At 1907 nm, non-resonant νβ values as high as -466,000 × 10-48 esu are observed.

scholarly journals Nonresonant femtosecond second hyperpolarizabilities of intramolecular charge-transfer molecules with great excited- and ground-state dipole-moment differences

1999 ◽  
Vol 75 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Mikio Yamashita ◽  
Shinji Kikuma ◽  
Yoshihisa Yamaoka ◽  
Hidetoshi Murakami ◽  
Ryuji Morita ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Charge Transfer ◽  
Ground State ◽  
Intramolecular Charge Transfer ◽  
Ground State Dipole Moment

Hammett Type Correlations for Intramolecular Charge Transfer (ICT) Dipole Moments of 4’-Substituted 9-Styrylacridines in the Ground State and in the Excited State

Heterocycles ◽  
2001 ◽  
Vol 55 (12) ◽  
pp. 2325 ◽  
Author(s):  
Jean-Pierre Desvergne ◽  
Mohamed El Azami ◽  
Najib Bitit ◽  
Abdelali Kerbal ◽  
Souad Lahlou ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Ground State ◽  
Intramolecular Charge Transfer ◽  
Dipole Moments

Dynamic adjustment of emission from both singlets and triplets: the role of excited state conformation relaxation and charge transfer in phenothiazine derivates

2021 ◽  
Author(s):  
Weidong Qiu ◽  
Xinyi Cai ◽  
Mengke Li ◽  
Liangying Wang ◽  
Yanmei He ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Dynamic Adjustment ◽  
Twisted Intramolecular Charge Transfer

Dynamic adjustment of emission behaviours by controlling the extent of twisted intramolecular charge transfer character in excited state.

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