Synthesis, Spectra, and Theoretical Investigations of 1,3,5-Triazines Compounds as Ultraviolet Rays Absorber Based on Time-Dependent Density Functional Calculations and three-Dimensional Quantitative Structure-Property Relationship
作者:Xueding Wang、Yilian Xu、Lu Yang、Xiang Lu、Hao Zou、Weiqing Yang、Yuanyuan Zhang、Zicheng Li、Menglin Ma
DOI:10.1007/s10895-018-2235-2
日期:2018.3
A series of 1,3,5-triazines were synthesized and their UV absorption properties were tested. The computational chemistry methods were used to construct quantitative structure-property relationship (QSPR), which was used to computer aided design of new 1,3,5-triazines ultraviolet rays absorber compounds. The experimental UV absorption data are in good agreement with those predicted data using the Time-dependent
合成了一系列1,3,5-三嗪,并测试了它们的紫外线吸收性能。利用计算化学方法构建了定量的结构-性质关系(QSPR),并将其用于新型1,3,5-三嗪紫外线吸收剂化合物的计算机辅助设计。实验性紫外线吸收数据与使用时变密度泛函理论(TD-DFT)[B3LYP / 6–311 + G(d,p)]的预测数据非常吻合。合适的预测模型(R > 0.8,P <0.0001)。利用Sybyl程序的多重拟合分子比对规则,建立了可预测的三维定量结构-性质关系(3D-QSPR)模型,该结论与TD-DFT计算吻合。对这种紫外线吸收剂化合物的异常光稳定性机理进行了研究,并证实其主要归因于它们通过超快激发态质子转移(ESIPT)进行激发态失活的能力。1,3,5-三嗪化合物的分子内氢键(IMHB)是激发态质子转移的基础,已通过红外光谱,紫外光谱,不同构象异构体的结构和能量方面以及前沿分子轨道分析进行了探索。