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Chemical and Physical Studies on the Reaction Mechanism of Charge-Transfer Complexes Between Narcotic Drugs and Electronic Acceptors

机译:麻醉药品与电子受体之间电荷转移配合物反应机理的化学和物理研究

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Considerable attention has recently been devoted to the formation of stable charge-transfer complexesthat result from the reaction between acceptors and drugs. This interest stems from the significantphysical and chemical properties of these complexes. In this paper, the charge-transfer complexesformed between the ephedrine (Eph) drug as a donor with picric acid (Pi) and quinol (QL) as a ?–acceptors have been synthesized in methanol as a solvent at room temperature and spectroscopicallystudied. Based on the elemental analyses (C, H and N) and photometric titrations, the interactionbetween both picric and quinol ?–acceptors with Eph donor formed via a stoichiometry (drug:acceptors) of 1:2 and 1:1, respectively. Benesi-Hildebrand and its modification methods were appliedto estimate the spectroscopic and physical data. The spectroscopic techniques such as (infrared, 1HNMR, and UV-vis) spectra, positron annihilation lifetime and thermo gravimetric analysis (TG) wereused to characterize the chelating behavior of the synthetic CT complexes. The positron annihilationlifetime parameters were found to be dependent on the structure, electronic configuration andmolecular weight of CT complexes. Finally, the antimicrobial activity of the CT complexes wasdetermined against various bacterial and fungal strains.
机译:近来,注意力集中在由受体与药物之间的反应产生的稳定的电荷转移复合物上。这种兴趣源于这些配合物的重要物理和化学性质。在本文中,以甲醇为溶剂,在室温下合成了麻黄碱(Eph)药物供体与苦味酸(Pi)和奎诺尔(QL)作为α-受体之间形成的电荷转移配合物,并进行了光谱研究。根据元素分析(C,H和N)和光度滴定,通过化学计量法(药物:受体)分别形成了苦味和喹诺醇γ-受体与Eph供体之间的相互作用。利用Benesi-Hildebrand及其修饰方法估算光谱和物理数据。利用光谱技术(红外光谱,1HNMR和UV-vis),正电子ni灭寿命和热重分析(TG)来表征合成CT络合物的螯合行为。发现正电子an没寿命参数取决于CT复合物的结构,电子构型和分子量。最后,确定了CT复合物对各种细菌和真菌菌株的抗微生物活性。

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