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Journal of Thermal Analysis and Calorimetry

, Volume 127, Issue 2, pp 1291–1306 | Cite as

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

  • Shashi B. Kalia
  • Rajesh Kumar
  • Monika Bharti
  • J. Christopher
Article

Abstract

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.

Keywords

Morpholinecarbamic acid (MorphcbmH) Copper(II) Zinc(II) TG/DSC Fluorescence spectroscopy Cyclic voltammetry 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2016

Authors and Affiliations

  • Shashi B. Kalia
    • 1
  • Rajesh Kumar
    • 1
  • Monika Bharti
    • 1
  • J. Christopher
    • 2
  1. 1.Department of ChemistryHimachal Pradesh UniversityShimlaIndia
  2. 2.Indian Oil Corporation, R&DFaridabadIndia

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