Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Xuzhou Normal University, Xuzhou 221116, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Jul;93:343-7. doi: 10.1016/j.saa.2012.03.040. Epub 2012 Mar 17.
Four novel fluorescence dyes of the pyrazoline were synthesized and fully characterized by means of (1)H, (13)C NMR, and HRMS. The optical, electrochemical properties were also investigated. Solvent effect on the fluorescence characteristics of the four compounds indicates that the emission wavelength was red-shifted with the increase of solvent polarity. As we expected, the results indicated that these compounds exhibited high quantum yields. Quantum chemical calculations were used to obtain optimized ground-state geometry, spatial distributions of the HOMO, LUMO levels of the compounds.
四种新型吡唑啉荧光染料被合成，并通过（1）H、（13）C NMR 和高分辨质谱（HRMS）进行了充分的表征。其光学和电化学性质也得到了研究。溶剂对四种化合物荧光特性的影响表明，随着溶剂极性的增加，发射波长发生红移。正如我们所预期的那样，结果表明这些化合物具有很高的量子产率。量子化学计算被用于获得化合物的优化基态几何形状、HOMO 和 LUMO 能级的空间分布。
