Systematic Investigations on 1,2,3-Triazole-Based Compounds Capable of Second Harmonic Generation
作者:Daniel Lumpi、Florian Glöcklhofer、Brigitte Holzer、Berthold Stöger、Christian Hametner、Georg A. Reider、Johannes Fröhlich
DOI:10.1021/cg4014762
日期:2014.3.5
(selenophene) ring fragmentation followed by azide–alkyne cycloaddition, were investigated as a basis for nonlinear optical (NLO) materials capable of second harmonic generation (SHG). The structure–property relationship was mapped by systematic variation of the molecular scaffold, viz., elongation of the alkyl groups, isomerizations of both the double bond as well as the triazole moiety, sulfur oxidations
研究了1,2,3-三唑官能化的烯-炔化合物,该化合物是由噻吩(硒烯)环断裂,然后叠氮化物-炔烃环加成而合成的,作为能够产生二次谐波(SHG)的非线性光学(NLO)材料的基础。通过分子支架的系统变化,即烷基的伸长,双键和三唑部分的异构化,硫的氧化以及硫-硒的交换,来绘制结构与性质之间的关系。合成了九种新型分子化合物,其中八种在室温下为固体。后者通过单晶X射线衍射(XRD)进行表征。五个晶体结构缺乏反对称性,这是NLO活性的先决条件。检查了有关材料的SHG,UV-vis吸收,和粉末XRD。通过用S代替Se,我们可以将SH强度提高20倍。根据结果,我们提出了一种策略,可以进一步提高此类材料的SHG效率。