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Possible application of the organic barbiturates as NLO materials

机译:有机巴比妥酸盐作为NLO材料的可能应用

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摘要

The self-assembly, crystal structures, and optical properties are reported for eight novel organic crystals of derivatives of barbituric acid, i.e. 4-methoxypyrydinium barbiturate dihydrate (1), 1,10-phenanthrolinium barbiturate monohydrate (2), 1-amino isoquinolinium barbiturate monohydrate (3), 5-hydrohy-L-tryptophan barbituric acid complex (4), 5-hydroxy-L-tryptophan 1,3-dimethylbarbituric acid dihydrate molecule complex (5), 1,10- phenanthrolinium (thio)barbiturate (6), 1-amino-1,2,4-triazole violuric acid monohydrate (7), and pyridine-3-aldoxime violuric acid complex (8). Compounds 1-8 were synthesized and characterized by means of single crystal X-ray diffraction, solution and solid-state UV/vis/NIR spectroscopy, and linear-polarized infrared (IR-LD) spectroscopy. Quantum chemical ab initio and DFT calculations were performed with a view to understanding the optical properties of these species. The potential application of these derivatives as NLO-phores is discussed by comparison with the corresponding violurate salts.
机译:报告了八种巴比妥酸衍生物的八种新型有机晶体的自组装,晶体结构和光学性质,即4-甲氧基吡啶巴比妥酸盐二水合物(1),1,10-菲咯啉巴比妥酸盐一水合物(2),1-氨基异喹啉鎓巴比妥酸盐一水合物(3),5-氢-L-色氨酸巴比妥酸络合物(4),5-羟基-L-色氨酸1,3-二甲基巴比妥酸二水合物分子络合物(5),1,10-菲咯啉(硫代)巴比妥酸酯(6 ),1-氨基-1,2,4-三唑三氟丙酮酸一水合物(7)和吡啶-3-醛肟三氟乙酸络合物(8)。合成了化合物1-8,并通过单晶X射线衍射,溶液和固态UV / vis / NIR光谱以及线性偏振红外(IR-LD)光谱进行了表征。为了理解这些物质的光学性质,进行了量子化学从头算和DFT计算。通过与相应的紫酸盐比较,讨论了这些衍生物作为NLO-phors的潜在应用。

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