Estimation of ground state and excited state dipole moments of a novel Schiff base derivative containing 1, 2, 4-triazole nucleus by solvatochromic method
作者:Roshmy Alphonse、Anitha Varghese、Louis George、Aatika Nizam
DOI:10.1016/j.molliq.2015.12.050
日期:2016.3
A novel schiff base derivative containing 1, 2, 4-triazole moiety (NBTMPA) has been synthesized from 4- [1, 2, 4] triazol-1-ylmethyl-phenylamine and 4-nitrobenzaldehyde in the presence of glacial acetic acid in an ethanolic medium. The absorbance and fluorescence spectra of (4-nitro-benzylidene)-(4- [1, 2, 4] triazol-1-ylmethyl-phenyl)-amine (NBTMPA) were recorded in various solvents to investigate
在冰醋酸存在下,由4- [1,2,4]三唑-1-基甲基-苯胺和4-硝基苯甲醛合成了一种含有1,2,4-三唑部分(NBTMPA)的新型席夫碱衍生物。乙醇培养基。记录了在各种溶剂中(4-硝基-亚苄基)-(4- [1,2,4]三唑-1-基甲基-苯基)-胺(NBTMPA)的吸光度和荧光光谱,以研究它们的溶剂化行为。NBTMPA的两个电子态的偶极矩由溶剂化变色光谱位移计算得出。这些与各种溶剂的折射率(n)和介电常数(ε)相关。根据不同的溶剂相关方法,例如Bilot–Kawski,Bakhshiev,Lippert–Mataga,Kawski–Chamma–Viallet和Reichardt方法。发现由于电子密度和电荷的大量重新分布,激发态的偶极矩高于基态的偶极矩。使用多元回归分析,借助Kamlet Taft参数(α,β,π*)确定了溶剂-溶质的相互作用。为了研究溶剂相中的原子电荷和前沿分子轨道能,使