Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 2
Thermal behaviour of new biological active cadmium mixed ligands complexes
Authors:
Mihaela Badea University of Bucharest Faculty of Chemistry, Department of Inorganic Chemistry 90-92 Panduri St. 050663 Sector 5 Bucharest Romania

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Rodica Olar University of Bucharest Faculty of Chemistry, Department of Inorganic Chemistry 90-92 Panduri St. 050663 Sector 5 Bucharest Romania

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Dana Marinescu University of Bucharest Faculty of Chemistry, Department of Inorganic Chemistry 90-92 Panduri St. 050663 Sector 5 Bucharest Romania

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Veronica Lazar University of Bucharest Faculty of Biology, Department of Microbiology 1-3 Aleea Portocalilor Str. 060101 Sector 6 Bucharest Romania

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Carmen Chifiriuc University of Bucharest Faculty of Biology, Department of Microbiology 1-3 Aleea Portocalilor Str. 060101 Sector 6 Bucharest Romania

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Gina Vasile University of Agronomical Sciences and Veterinary Medicine Department of Agrochemistry Bd. Marasti 59 Bucharest Romania

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Pages:
781–785
Online Publication Date:
17 Sep 2009
Publication Date:
01 Aug 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0344-5
Keywords:
Acrylate; Complexes; Carbonate; 1,10-Phenantroline; 2, 2′-Bipyridine; Thermal stability
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Abstract  

This paper reports the investigation on the thermal stability of new complexes with mixed ligands of the type [Cd(NN)(C3H3O2)2(H2O)m]·nH2O [(1) NN: 1,10-phenantroline, m = 1, n = 0; (2) NN: 2,2′-bipyridine, m = 0, n = 1.5 and (C3H3O2): acrylate anion]. The IR data indicate a bidentate coordination mode for both heterocyclic amine and acrylate. The in vitro qualitative and quantitative antimicrobial activity assays showed that the complexes exhibited variable antimicrobial activity against planktonic as well as biofilm embedded Gram-negative (Escherichia coli, Klebsiella sp., Proteus sp., Salmonella sp., Shigella sp., Acinetobacter boumani, Pseudomonas aeruginosa), Gram-positive (Bacillus subtilis, Staphylococcus aureus) and fungal (Candida albicans) strains, reference and isolated ones from the hospital environment. The thermal behaviour steps were investigated in synthetic air flow. The thermal transformations are complex processes according to TG and DTA curves including dehydration, amine as well as acrylate thermolysis. The final products of decomposition are the most stable metal oxides.

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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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