Citation:
AN Cai-Xia, HOU Rui-Bin, QIU Han, ZHAO Liang, YIN Bing-Zhu, SU Zhong-Min. Synthesis and Theoretical Calculation for Non-linear Properties of Pyrrolotetrathiafulvalene-Based D-π-A Diads[J]. Chinese Journal of Applied Chemistry,
;2009, 26(7): 795-800.
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Two tetrathiafulvalene-based D-π-A diad compounds(6a,7a) were prepared from starting compound(1) via Vilsmeier formylation and Wittig reaction or cross-coupling reaction.To study the effect of the N-methyl,two N-methylated D-π-A diad analogues(6b,7b) were also synthesized from the interme-diate(2) via the same process.Their electrochemical and photophysical properties were studied with cyclic voltammetry and UV-Vis spectrometry,and theoretical calculations were carried out for their third-order nonlinear optical properties.Experimental results showed that the maximum absorption wavelengths of the target compounds were 325~383 nm and the results calculated showed that compounds 7a and 7b with a longer conjugated structure possessed better third-order nonliner susceptibilities,and their γ values were 5×10-33 esu at λ=1 064 nm.
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