Synthesis, Spectral and Kinetic Study of Demi-macrocycle of N 2 O 2 with Complex of Co (II) Ion

Sameena Rasheed, M. U. Khan, S. S. Parihar, A. Dwivedi
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引用次数: 1

Abstract

Macrocyclic metal chelating agents are useful for detecting tumor lssions. 4,5 The chemistry of macrocyclic complexes is also important due to their use in dyes and pigments as-well-as in study of NMR shift reagents etc. 2. EXPERIMENTAL All reagents and solvents used in the present investigation were of analytical grade. 1,2diaminoethane, perchloric acid (HClO4), acetone (CH3COCH3) etc. of Loba, Merck and Aldrich brand. The preparation of solutions, standardization, and procedures for demi-macrocyclic complex formation and their spectral kinetic studies have been performed. The carbon, hydrogen and nitrogen analysis of the samples were carried out microanalytically. Oxygen was determined by different methods. Metal and chloride were determined gravimetrically. The IR spectra (4000-400 cm -1 ) was recorded on a Jasco model 4100 FTIR spectrometer as KBr discs. UV-visible spectra was recorded on a shimedzu 1700 pharmaspectrometer. Conductivity measurements were made in DMSO or nitromethane (10 -3 mho) at room temperature on systronics conductivitymeter. Magnetic susceptibility was measured at 8000 G in a Evans magnetic susceptibility balance using Co[(Hg(SCN)4)] as calibrant and the experimental susceptibilities were corrected for diamagnetic correction with pascal constants.
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Co (II)离子配合物n2o半大环的合成、光谱及动力学研究
大环金属螯合剂在检测肿瘤损伤方面是有用的。大环配合物的化学性质也很重要,因为它们可以用于染料和颜料以及核磁共振移位试剂等的研究。本研究中所用的试剂和溶剂均为分析级。Loba、Merck、Aldrich品牌的1,2 -二氨基乙烷、高氯酸(HClO4)、丙酮(CH3COCH3)等。溶液的制备、标准化和半大环络合物形成的程序及其光谱动力学研究已经完成。对样品进行了碳、氢、氮微量分析。氧的测定方法不同。用重量法测定金属和氯化物。红外光谱(4000 ~ 400 cm -1)在Jasco型4100 FTIR光谱仪上以KBr光盘的形式记录。在shimedzu 1700型药谱仪上记录紫外可见光谱。在室温下用DMSO或硝基甲烷(10 -3 mho)在系统电导率仪上测量电导率。以Co[(Hg(SCN)4)]为标定剂,在埃文斯磁化率天平上测量了8000g下的磁化率,并用帕斯卡常数对实验磁化率进行了反磁校正。
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