Spectroscopic Characterization and Thermo-Gravimetric Analysis of Bioactive Copper 2-Amino 6-Methyl Benzothiazole Complexes Derived from Various Oils

Author(s): Anju Joram, Rashmi Sharma, Arun Kumar Sharma*

Journal Name: Current Physical Chemistry

Volume 9 , Issue 1 , 2019

Become EABM
Become Reviewer
Call for Editor

Graphical Abstract:


Background: Surfactants most characteristic phenomenon of micellization in the bulk phase, as well as their ability to be accumulated at an interface are of immense theoretical, applied and biological interests as indicated by large number of publication of papers and reviews in last three decades. Particulars information about Copper (II) soaps derived from natural oils, play a vital role in its selection in specific phenomena such as foaming, wetting, detergency, emulsification etc. and also in their use as herbicides, fungicides, pesticides and insecticides etc. The tendency of Copper soaps have complex formation with compounds containing donor atoms like N, S, O, Br, etc. as benzothiazole and other related compounds play significant role in biological activities due to the presence of nitrogen and sulphur atoms, which are responsible for their pharmacological activities.

Objective: The copper surfactants derived from various edible (Groundnut and Sesame oils) and non-edible oils (Neem and Karanj oils) and their complexes with nitrogen and sulphur containing ligands such as 2-amino-6-methyl-benzothiazole have been synthesized and studied for their structural aspects, which were confirmed using various techniques like IR, NMR and ESR spectroscopy. Thermogravimetric analysis of complexes which is derived from already synthesized copper (II) soaps with 2-amino-6-methyl benzothiazole was done to confirm the thermal decomposition.

Methods: Thermo Gravimetric Analysis (TGA) has been used to study the thermal decomposition of copper surfactants complexes to evaluate their energy of activation and various thermodynamic parameters i.e. Gibbs free energy, enthalpy, entropy have been calculated. Copper surfactants and their benzothiazole complexes were studied to test the validity of various equations namely Freeman Carroll, Coats - Redfern, Horowitz - Metzger, Broido, and Piloyan-Novikova related to thermal degradation.

Results: The degradation occurs in three steps and the value of activation energy is highest for third step and smallest for the first steps. CNB and CKB need higher energy to degrade than CGB and CSB. The all copper surfactants molecules have negative entropy, which indicates that the decomposition reactions proceed with a lower rate.

Conclusion: Thermogravimetric degradation analysis will also provide significant information about the removal of the natural soap segment from the environment. The studies will be very important for pollution controlling and in the field of Green Chemistry.

Keywords: Benzothiazole, copper surfactants, ESR, IR, NMR, TGA.

Siddique, J.A.; Sharma, S.; Naqvi, S. Viscometric study of lysozyme solution with sugar and urea at various temperatures. Arab. J. Chem., 2016, 9(2), S1040-S1043.
Sharma, R.; Sharma, A.S. S. Natural edible oils: comparative health aspects of sesame, coconut, mustard (rape seed) and groundnut (peanut) a biomedical approach. Biomed. J. Sci. Tech. Res, 2017, 1(5) BJSTR.MS.ID.000441.
Mehrotra, K.N.; Chauhan, M.; Shukla, R.K. Surfactants and detergents: influence of alkanols on the micellar behavior of samarium soaps. J. Am. Oil Chemist. Soc., 1990, 67(7), 446-450.
Sharma, A.K.; Sharma, R.; Gangwal, A. Antifungal activities and characterization of some new environmentally safe Cu (II) surfactants substituted 2-amino-6-methyl benzothiazole. Open Pharm. Sci. J., 2018, 5, 1-11.
Sharma, A.K.; Saxena, M.; Sharma, R. Synthesis, spectroscopic and fungicidal studies of Cu (II) soaps derived from groundnut and sesame oils and their urea complexes. Bull. Pure Appl. Sci, 2017, 36(2), 26-37.
Sharma, A.K.; Saxena, M.; Sharma, R. Fungicidal activities and characterization of novel biodegradable Cu (II) surfactants derived from lauric acid. Open Chem. J., 2018, 5, 89-105.
Bhutra, R.; Sharma, R.; Sharma, A.K. Antimicrobial studies and characterization of copper surfactants derived from various oils treated at high temperatures by P.D.A. technique. Open Pharm. Sci. J., 2018, 5, 36-40.
Sharma, A.K.; Saxena, M.; Sharma, R. Ultrasonic studies of copper soaps urea complexes derived from mustard and soya bean oils. J. Phy. Sci, 2018, 29(3), 67-82.
Mehrotra, K.N.; Jain, M. Viscometric and spectrophotometric studies of chromium soaps in a benzene-dimethylformamide mixture. Colloids Surf. A Physicochem. Eng. Asp., 1994, 85, 75-80.
Mehrotra, K.N.; Mehta, V.P.; Nagar, T.N. Studies on colorimetry, solubility and thermodynamic properties of copper soap solutions. J. Prakt. Chem., 1971, 313, 607-613.
Khan, S.; Sharma, R.; Sharma, A.K. Viscometric evaluation and micellar properties of Cu (II) soap derived from neem oil in non-aqueous media. Curr. Phys. Chem., 2018, 8(3), 164-174.
Tank, P.; Sharma, R.; Sharma, A.K. Micellar features and various interactions of copper soap complexes derived from edible mustard oil in benzene at 303.15 K. Curr. Phys. Chem., 2018, 8(1), 46-57.
Bhutra, R.; Sharma, R.; Sharma, A.K. Volumetric studies of copper soap derived from treated and untreated oils in benzene at 298.15 K. Bull. Pure Appl. Sci. Chem, 2018, 37(2), 33-44.
Khan, S.; Sharma, R.; Sharma, A.K. Acoustic studies and other Acoustic Parameters of Cu(II) Soap derived from nonedible neem oil (Azadirectaindica), in non-aqueous media at 298.15 K. Acta Acust. United Acust., 2018, 104(2), 277-283.
Sharma, A.K.; Saxena, M.; Sharma, R. Ultrasonic studies of Cu (II) soaps derived from groundnut and sesame oils. Tenside. Surf. Det., 2018, 55(2), 127-134.
Sharma, A.K.; Sharma, R.; Gangwal, A. Surface tension studies of ternary system: Cu (II) surfactants-2-amino-6-methyl benzothiazole complex plus methanol plus benzene at 311 K. Curr. Phys. Chem., 2018, 8(2), 151-161.
Sharma, A.K.; Khan, S.; Sharma, R. Viscometric behaviour and micellar studies of Cu (II) surfactant derived from neem (AzadirectaIndica) oil in methanol-benzene mixture at 298.15 K. Global J. Eng. Sci. Res, 2018, 5, 9-16.
Sharma, A.K.; Sharma, R.; Saxena, M. Biomedical and antifungal application of Cu(II) soaps and its urea complexes derived from various oils. J. Trans. Med. Res, 2018, 2(2), 40-43.
Mathur, N.; Jain, N.; Sharma, A.K. Biocidal activities of substituted benzothiazole of copper surfactants over candidaalbicans and trichodermaharzianumon Muller Hinton agar. Open Pharm. Sci. J., 2018, 5, 24-35.
Sharma, S.; Sharma, R.; Sharma, A.K. Photo catalytic and kinetic study of ZnO catalyzed degradation of copper stearate surfactant. Curr. Environ. Eng., 2008, 5, 1-9.
Tank, P.; Sharma, R.; Sharma, A.K. A pharmaceutical approach & antifungal activities of copper soaps with their N and S donor complexes derived from mustard and soya bean oils. Glob. J. Pharm. Sci, 2017, 3(4) GJPPS.MS.ID.555619.
Sharma, A.K.; Saxena, M.; Sharma, R. Ultrasonic studies of copper soaps urea complexes derived from mustard and soya bean oils. J. Phy. Sci, 2018, 29(3), 67-82.
Raval, J.P.; Desai, K.G.; Desai, K.R. Microwave synthesis, characterization and antimicrobial study of new pyrazolyl-oxopropyl-quinazolin-4(3H)-one derivatives. J. Saudi Chem. Soc., 2011, 16(4), 387-393.
Chandra, S.; Jain, D.; Sharma, A.K.; Sharma, P. Coordination modes of a Schiff Base pentadentate derivative of 4-aminoantipyrine with cobalt(II), nickel(II) and copper(II) metal ions: synthesis, spectroscopic and antimicrobial studies. Molecules, 2009, 14, 174-190.
Mishra, A.P.; Mishra, R.K.; Shrivastava, S.P. Structural and antimicrobial studies of coordination compounds of VO(II), Co(II), Ni(II) and Cu(II) with some Schiff bases involving 2-amino-4-chlorophenol. J. Serb. Chem. Soc., 2009, 74, 523-535.
Mathur, N.; Jain, N.; Sharma, A.K. Synthesis, characterization and biological analysis of some novel complexes of phenyl thiourea derivatives with copper. Open Chem. J., 2018, 5, 3-12.
Mehta, V.P.; Hasan, M.; Heda, L.C. Solid-state kinetics and infrared spectra of cadmium soaps. J. Macromol. Sci. Chem., 1982, A17(3), 513-521.
Freeman, E.S.; Carroll, B. The application of thermo analytical techniques to reaction kinetics: the thermogravimetric evaluation of the kinetics of the decomposition of calcium oxalate monohydrate. J. Phys. Chem., 1958, 62, 394-397.
Coats, A.W.; Redfern, J.P. Kinetic parameters from thermogravimetric data. Nature, 1964, 201, 68-69.
Horowitz, H.H.; Metzger, G. A new analysis of thermogravimetric traces. Anal. Chem., 1963, 35(10), 1464-1468.
Broido, A. A simple, sensitive graphical method of treating thermogravimetric analysis data. J. Poly. Sci, 1969, 7(7), 1761-1773.
Piloyan, G.O.; Novikova, O.S. Determination of activation energies of chemical reactions by differential thermal analysis. Nature, 1966, 5067, 1229-1230.
Joram, A.; Sharma, R.; Sharma, A.K. Synthesis, spectral and thermo-gravimetric analysis of novel macromolecular organo-copper surfactants. Open Chem. J., 2018, 5, 3-15.
Tank, P.; Sharma, A.K.; Sharma, R. Thermal behaviour and kinetics of copper (II) soaps and complexes derived from mustard and soya bean oil. J. Anal. Pharm. Res, 2017, 4(2), 1-5.
Joram, A.; Sharma, R.; Sharma, A.K. Thermal degradation of complexes derived from Cu (II) groundnut soap (Arachis hypogaea) and Cu (II) sesame soap (Sesamum indicum) soaps. Z. Phys. Chem., 2018, 232(4), 459-470.

open access plus

Rights & PermissionsPrintExport Cite as

Article Details

Year: 2019
Published on: 02 June, 2019
Page: [58 - 76]
Pages: 19
DOI: 10.2174/1877946809666190320144208

Article Metrics

PDF: 30