Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 49: Issue 2
Some new organotin(IV) complexes with kojic acid and maltol
Synthesis, characterization and thermal studies
Authors:
Reena Jain Department of Chemistry, University of Delhi, 110007 Delhi, India

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N. Kaushik Department of Chemistry, University of Delhi, 110007 Delhi, India

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Pages:
713–725
Online Publication Date:
05 Aug 2005
Publication Date:
01 Aug 1997
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01996755
Keywords:
kojic acid; maltol; organotin; thermal studies
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Abstract  

Organotin(IV) complexes of kojic acid and maltol of the type R3Sn(L) and R2Sn(L)Cl [R=C6H5CH2-,p-ClC6H4CH2-; HL=kojic acid, maltol] have been synthesized in anhydrous THF. They were characterized by UV, IR,1H NMR, and mass spectral studies. Their activityvs. E. coli, S. aureus and P. pyocyanea bacterial strains have been studied and the general order of activity is S. auresu>P. pyocyanea>E. coli. In all the complexes, the ligand acts as bidentate, forming a five membered chelate ring. All the complexes are 1∶1 metal ligand complexes. Various thermodynamic parameters have been calculated for the first two decomposition steps using TG/DTA/DSC curves. (p-ClC6H4CH2)3Sn(L) complexes have the minimum and (C6H5CH2)2Sn(L)Cl complexes have the maximum activation energy.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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