title: Nonlinear optical chromophores with pyrrole moieties as the conjugated bridge: enhanced NLO effects and interesting optical behavior.
abstract: A series of nonlinear optical (NLO) chromophores were successfully prepared, in which pyrrole moieties were the conjugated bridge. In comparison with their analogues containing furan or thiophene groups as the bridge, these chromophores demonstrated similar or enhanced NLO effects (up to 3.3 times) and interesting optical behavior. While the acceptor groups were malononitrile (Mal), 3-phenyl-5-isoxazolone (Iso), and 1,3-diethylthiobarbituric acid (Bar), the chromophores exhibited much blue-shifted maximum absorption wavelengths (lambda max) (up to 36 nm); however, the lambda max of the chromophore containing tricyanovinyldihydrofuran (TCF) as acceptor became much longer than that of the analogue (up to 75 nm).
authors: Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Opto-Electronic Materials, Wuhan University, Wuhan 430072, China.
authors: Qianqian
authors: Q
authors: Li
authors: Changgui
authors: C
authors: Lu
authors: Jing
authors: J
authors: Zhu
authors: Enqin
authors: E
authors: Fu
authors: Cheng
authors: C
authors: Zhong
authors: Suyue
authors: S
authors: Li
authors: Yiping
authors: Y
authors: Cui
authors: Jingui
authors: J
authors: Qin
authors: Zhen
authors: Z
authors: Li