A new chromophore 6-methoxy-1-[2-(4-nitrophenyl)ethenyl]-azulene was synthesized and tested for the Second Harmonic Generation (SHG) in solid state by the Kurtz powder technique. This compound was six times more efficient (58 times than the urea standard) than the unsubstituted compound 1-[2-(4-nitrophenyl)ethenyl]-azulene (10 times than the urea).

中文翻译：

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具有非线性光学性质的推挽式z基生色团

合成了一种新的生色团6-甲氧基-1- [2-（4-硝基苯基）乙烯基] -ul并通过Kurtz粉末技术测试了固态的第二谐波生成（SHG）。该化合物的效率（比尿素标准品高58倍）是未取代的化合物1- [2-（4-硝基苯基）乙烯基]-氮杂烯（比尿素高10倍）六倍。