Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202 002, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Feb;102:82-7. doi: 10.1016/j.saa.2012.10.027. Epub 2012 Oct 23.
A charge transfer complex of o-phenylenediamine (OPD) as donor with 3,5-dinitrosalicylic acid (DNSH) as acceptor, was synthesized and characterized by FTIR, (1)H NMR, (13)C NMR, mass spectroscopy, elemental analysis and X-ray crystallography. The structural investigations exhibit that the cation and anion are joined together by strong N(+)H⋯O(-) type hydrogen bonds and stoichiometry of CT complex was found to be 1:1. The CT (charge transfer) complex shows remarkable interaction with Calf thymus DNA, and the CT complex was also screened for its microbial activity such as antimicrobial and antifungal activities. A molecular frame work through H-bonding interactions via n→π(*) transitions between neighboring moieties is found which is responsible for high melting point of resulting CT complex. This has been attributed to the formation of 1:1 CT complex.
邻苯二胺（OPD）作为给体与 3,5-二硝基水杨酸（DNSH）作为受体的电荷转移络合物通过傅里叶变换红外光谱（FTIR）、（1）H 核磁共振（1H NMR）、（13）C 核磁共振（13C NMR）、质谱、元素分析和 X 射线晶体学进行了合成和表征。结构研究表明，阳离子和阴离子通过强 N(+)H⋯O(-) 氢键结合在一起，并且发现 CT 络合物的化学计量比为 1:1。CT（电荷转移）络合物与小牛胸腺 DNA 表现出显著的相互作用，并且还对 CT 络合物进行了微生物活性筛选，例如抗菌和抗真菌活性。通过相邻部分之间的 n→π(*) 跃迁通过氢键相互作用发现了分子框架，这是导致所得 CT 络合物具有高熔点的原因。这归因于 1:1 CT 络合物的形成。
