Chinese Journal of Organic Chemistry >
Synthesis of Novel Organic Nonlinear Optical Chromophores and the Enhancement of Electro-optic Activity of the Additional Donors
Received date: 2012-09-13
Revised date: 2012-12-12
Online published: 2012-12-18
Supported by
Project supported by the National Natural Science Foundation of China (No. 60771044).
In order to study the impact of different additional donors on molecular thermal decomposition temperature (Td) value of the chromophores as well as the second polarization (μgβ) value. Three novel materials EFC-OH, EFC-OBu and EFC- OBe were synthesized by attaching additional donors to the benzene ring based on the reported 2-[{4-(4-diethylamino)sty- reneyl}-3-cyano-5,5-dimethyl-5H-furan-2-ylidene]malononitrile (DCDHF-2-V). The three chromophores were characterized by 1H NMR, 13C NHR, FT-IR and elemental analysis. The Td value was determined by TGA testing, and the result showed that three molecules had a good thermal performance. EFC-OBe processing a Td of 278.6 ℃ showed the best among these molecules. The hyperpolarizability was measured and calculated by solvatochromism method. EFC-OBe still showed the best μgβ value of 4.7149×10-44 esu. Comparing to the DCDHF-2-V without additional donors on Td value and μgβ value, additional donors had little effect on Td value while achieved an improvement of one order of magnitude in μgβ values, which indicates that the molecules can work in high temperature and performance better in optics.
You Yingcai , Tang Xianzhong , Tang Xiang , Jia Kunpeng , Wang Yang , Li Yushu , Zhang Yu . Synthesis of Novel Organic Nonlinear Optical Chromophores and the Enhancement of Electro-optic Activity of the Additional Donors[J]. Chinese Journal of Organic Chemistry, 2013 , 33(03) : 530 -534 . DOI: 10.6023/cjoc201209020
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