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Spectroscopic (IR, Raman, UV, 1H and 13C NMR) and microbiological studies of Fe(III), Ni(II), Cu(II), Zn(II) and Ag(I) picolinates

✍ Scribed by M. Kalinowska; M. Borawska; R. Świsłocka; J. Piekut; W. Lewandowski

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
149 KB
Volume
834-836
Category
Article
ISSN
0022-2860

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✦ Synopsis

The FT-IR, Raman spectra of picolinic acid as well as Fe(III), Zn(II), Cu(II), Ni(II) and Ag(I) picolinates were registered, assigned and compared. Some regularities in the spectra of studied picolinates within the regions: 1650-1340 cm À1 [m(CC) ar , m as (COO À ), m s (COO À )]; 1300-1020 cm À1 [b(CH)]; 780-620 cm À1 [c(CH), a(CCC)] were found. 1 H and 13 C NMR spectra for picolinic acid, Zn(II) and Ag(I) picolinates were recorded and studied as well. Moreover the UV spectra of picolinic and picolinates were registered and compared. The influence of Ag(I), Zn(II), Ni(II), Cu(II) and Fe(III) on the electronic system of picolinic acid was investigated. The microbiological activity of picolinates against two species of bacteria: Escherichia coli, Bacillus subtilis as well as two species of yeasts: Saccharomyces cerevisiae and Hansenula anomala was also studied.

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## Abstract ^1^H, ^13^C and ^15^N NMR studies of gold(III), palladium(II) and platinum(II) chloride complexes with picolines, [Au(PIC)Cl~3~], __trans__‐[Pd(PIC)~2~Cl~2~], __trans__/__cis__‐[Pt(PIC)~2~Cl~2~] and [Pt(PIC)~4~]Cl~2~, were performed. After complexation, the ^1^H and ^13^C signals were s