Synthesis and characterisation of antifungal agents containing copper(II) soaps and derived from mustard and soyabean oil / R. Sharma in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 2/2008 (03-04/2008)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 2/2008 (03-04/2008) . - p. 87-92 Titre : Synthesis and characterisation of antifungal agents containing copper(II) soaps and derived from mustard and soyabean oil Type de document : texte imprimé Auteurs : R. Sharma, Auteur ; P. Tank, Auteur ; M. Saxena, Auteur ; R. Bhutra, Auteur ; K. G. Ojha, Auteur Année de publication : 2008 Article en page(s) : p. 87-92 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Copper(II)  soaps'  Complexes  Characterisation  Infrared  'Nuclear  magnetic  resonance'  'ESR  spectroscopy'  'Magnetic  moment  studies'  'Fungi  toxicities' Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The solid copper(II) soaps derived from Mustard oil and Soyabean oil and their complexes with ligands containing nitrogen and sulphur atoms like urea, thiourea and 2-amino-6-chloro benzothiazole have been synthesized and characterised by elemental analysis, IR, NMR, ESR spectroscopy and magnetic moment studies. From the analytical data, the stoichiometry of the complexes have been observed to be 1:1 (metal:ligand). The magnetic moment studies suggest the dimeric nature of the complexes. IR, NMR and ESR spectral details confirm that complexation has taken place successfully. The results indicate that the complexes possess elongated octahedral geometry. Conductometric studies suggest that the soaps and complexes are non-electrolytic in nature. The fungi toxicities of these ecofriendly and biodegradable soaps and complexes have been investigated. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3035 [article]

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Viscometric Behaviour and Micellization of Complexes of Copper (II) Stearate with N-donor Heterocyclic Dyes / N. Mathur in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 1/1009 (01-02/2009)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 1/1009 (01-02/2009) . - p. 25-30 Titre : Viscometric Behaviour and Micellization of Complexes of Copper (II) Stearate with N-donor Heterocyclic Dyes Type de document : texte imprimé Auteurs : N. Mathur, Auteur ; S. Pooja, Auteur ; A. Imran, Auteur ; K. G. Ojha, Auteur Année de publication : 2009 Article en page(s) : p. 25-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Benzothiazoles Colorants Composés hétérocycliques Cuivre -- Composés organiques Jones-Dole, Equation de Moulik, Equation de Phénylthiourée Surfactants Viscosité Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Colloido-chemical behavior of copper (II) stearate and N-donor ligands in benzene-methanol mixture of varying composition has been investigated by viscometric measurements. The critical micelle concentration values depend upon the composition of solvent mixture and are to be found in close agreement with each other. The general trend observed is that the viscometric parameters with concentration are quite different and the plots are obtained with curvature at a definite concentration corresponding to critical micelle concentration at which there is marked change in the aggregation of the complex molecules. The results of phenylthiourea and benzothiazole complexes in regards to solute-solvent and solute-solute interactions in mixed solvent systems have been discussed in terms of the equations proposed by Moulik and Jones-Dole. The complexes were synthesized with N-donor ligands and copper (II) stearate and characterized by their elemental analysis, molecular weight, melting point, IR and NMR spectral studies. Due to the surface-active properties of copper stearate, the complexes show remarkable applications in industries and are used as emulsifiers, dispersing agents, foaming and wetting agents. N-donor ability of ligands make them useful as intermediates for many organic compounds such as colorants, agrochemical and pharmaceutical. They are good antiviral, antibacterial and antimalerial agents. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3717 [article]

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