Experimental investigations of thermal stability of some morpholinecarbamic acid complexes of copper(II) and zinc(II)

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• 作者：Shashi B. Kalia ; Rajesh Kumar ; Monika Bharti…
• 关键词：Morpholinecarbamic acid (MorphcbmH) ; Copper(II) ; Zinc(II) ; TG/DSC ; Fluorescence spectroscopy ; Cyclic voltammetry
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：127
• 期：2
• 页码：1291-1306
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Physical Chemistry; Analytical Chemistry; Polymer Sciences; Inorganic Chemistry; Measurement Science and Instrumentation;
• 出版者：Springer Netherlands
• ISSN：1588-2926
• 卷排序：127

文摘

Some new carbamates, viz. M(MorphcbmH)₂X₂ (MorphcbmH = morpholinecarbamic acid, M = Cu, X = Cl, ClO₄,NO₃; M = Zn, X = Cl, ClO₄, NO₃, CH₃COO and X₂ = SO₄), have been synthesized and investigated. Compounds were characterized by elemental analysis, molar conductance, FT infrared, fluorescence, NMR (1H and 13C) and solution electronic absorption spectral studies. Room temperature field-dependent magnetic susceptibility measurements, PXRD spectral and cyclic voltametric studies were also conducted. Chelating bidentate mode of coordination of ligand, MorphcbmH with four coordination around metal ion has been proposed. Ligand and its compounds have also been studied using non-isothermal thermogravimetric analysis and differential scanning calorimetric analytical techniques which inferred formation of metal oxide/MCO₃ as final thermal decomposition products. Compounds were screened against the lipase enzyme for assaying their enzyme activity and were found to retard the lipase activity from 48.16 to 0.044 µmol mL−1 min−1.