期刊
CHEMISTRYSELECT
卷 1, 期 11, 页码 2792-2801出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201600608
关键词
Donor-pi-acceptor molecule; intramolecular charge transfer; solvatochromism; triphenylamine; DFT study
资金
- Department of Science and Technology, New Delhi, India [SR/F/1584/2012-13]
- Council of Scientific and Industrial Research, New Delhi, India [01(2540)/11/EMR-II]
- Department of Science and Technology, Extramural Research [EMR/2015/000969]
We synthesized a new series of intramolecular charge transfer (ICT) molecules by attaching very strong electron- withdrawing groups to a triphenylamine backbone. ICT interactions can be found for all the triphenylamine (TPA) derivatives due to the electron withdrawing properties of the cyanide on the end terminal triphenylamine moiety. When introducing the electron withdrawing group on the TPA moiety giving rise to efficient emission tuning from blue to green in polar solvents, due to the increase in ICT interactions which results in the bathochromically shifted ICT band observed. Further, from these results, we found that all the compounds exhibit intensive ICT interactions leading to substantial extension of their absorption spectral response.
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