Liang Xu, Hai Zhu, Guankui Long
Aug 27, 2015
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Journal
Journal of Materials Chemistry C
Abstract
Through the integration of a 4-diphenylamino-phenyl unit with a pyrazine segment, a series of novel organic conjugated molecules with different spacers and shapes have been synthesized and fully characterized. These as-prepared compounds exhibit reversible acidochromism in response to protonation and deprotonation. The investigation of the nonlinear optical (NLO) properties reveals that the neutral forms of these structures display a reverse saturated absorption (RSA), while the protonated forms show a saturated absorption (SA).