β-萘酚取代环三磷腈的合成及其紫外-可见光谱性能研究

Study on synthesis of hexa-(β-naphthyloxy) cyclotri-phosphazene and its UV-vis properties

通过六氯环三磷腈与β-萘酚反应合成了一种新型六(β-萘氧基)环三磷腈化合物,其结构经核磁共振谱、红外光谱和质谱表征。紫外-可见吸收光谱法测定了β-萘酚和六(β-萘氧基)环三磷腈在乙醇、环己烷和乙腈中的最大吸收波长(λmax),并探讨了分子结构和溶剂对吸收光谱的影响。研究发现,溶剂效应对六(β-萘氧基)环三磷腈的吸收光谱无明显影响;六(β-萘氧基)环三磷腈相比β-萘酚最大吸收波长发生蓝移,说明六(β-萘氧基)环三磷腈相比β-萘酚的分子共轭程度降低。

Hexa-（β-naphthyloxy）cyclotriphosphazene is synthesized by the necleophilic substitution reaction of β-naphthol with hexachlorocyclotriphosphazene, which were characterized by NMR, IR, MS and UV-Vis spec-tra. The aximum absorption wavelength （λmax）of the β-naphthol and its derivative in ethanol, hexamethylene and acetonitrile, respectively,were separately determined by UV-Vis spectroscopy. The effects of the solvents and molecular structure on absorption spectra were studied. The results showed that the maximum absorption wave-length （λmax） of hexa-（β-naphthyloxy）cyclotriphosphazene on ultraviolet absorption spectra had not a shift in ethanol, hexamethylene and acetonitrile. Ultraviolet absorption wavelength （λmax） of hexa-（β-naphthyloxy）cyclot-riphosphazene had a blue shift in contrast to that of β-naphthol in acetonitrile, which demonstrated that the molec-ular conjugational effect of hexa-（β-naphthyloxy）cyclotriphosphazene had decreased.