218909-60-5Relevant articles and documents
Tuning optical and electronic properties of poly(4,4'-triphenylamine vinylene)s by post-modification reactions
Grigoras, Mircea,Catargiu, Ana Maria,Ivan, Teofilia,Vacareanu, Loredana,Minaev, Boris,Stromylo, Evgeniy
, p. 227 - 238 (2015)
New triphenylamine-based polyarylenevinylenes with pendant phenylethynyl- and 3-pyridylethynyl substituents were synthesized by Stille polycondensation of trans-1,2-bis(tributylstannyl)ethene with two new ethynyl substituted triphenylamine monomers, i.e., N,N-bis(4-iodophenyl)-4'-(phenylethynyl) phenylamine and N,N-bis(4-iodophenyl)-4'-(3-pyridylethynyl) phenylamine. The polymers were characterized by spectral methods and cyclic voltammetry and their properties were compared with those of the unsubstituted poly(4,4'-triphenylamine vinylene). Chemical post-modifications of the polymers by tetracyanoethylene addition to the triple bond, and quaternization of pyridyl group with accent on the fine-tuning of the optical and electrochemical properties were also studied. Density functional theory calculations provide a reliable interpretation of the observed spectra and electrochemical data.
Acid-induced tunable white light emission based on triphenylamine derivatives
Liu, Xi,Qin, Yi,Zhu, Junlong,Zhao, Xiaoli,Cheng, Tanyu,Jiang, Yanrong,Sun, Haitao,Xu, Lin
supporting information, p. 1537 - 1540 (2020/11/12)
A series of triphenylamine (TPA) derivatives with various substituent groups were prepared and showed different absorption and fluorescence characteristics due to the substituent effect. On account of the existence of pyridine units, these TPA derivatives exhibited acid-induced tunable multicolor fluorescence emission including white light emission. In addition, acid-induced fluorescence regulation of these compounds has been also realized in the solid state, which enable them to be successfully constructed the stimuli-responsive fluorescent films and fluorescent inks for inkjet printing.
Multipodal arrangement of push-pull chromophores: a fundamental parameter affecting their electronic and optical properties
Klikar,Kityk,Kulwas,Mikysek,Pytela,Bure?
supporting information, p. 1459 - 1472 (2017/02/23)
A series of model push-pull molecules with linear, quadrupolar, and tripodal arrangements, a varyingly substituted amino donor, two acceptors, and a partially extended π-system has been prepared. Two peripheral electron acceptors, namely N,N′-dibutylbarbituric acid and dicyanovinyl, were employed. The fundamental properties of 24 push-pull chromophores were investigated by differential scanning calorimetry, electrochemistry, one-photon absorption spectroscopy, photoinduced piezooptics, and were supported by DFT calculations. Thorough structure-property relationships were elucidated, while a significant influence of the structural arrangement/branching on the electronic and optical properties has been revealed. The fundamental optoelectronic properties of push-pull molecules are affected by their arrangement (linear/quadrupolar/tripodal), the peripheral acceptor attached, extension and planarization of the π-system, and also by the type of auxiliary N-substituent.
