Spectroscopic, thermal and kinetic studies of coordination compounds of Zn(II), Cd(II) and Hg(II) with norfloxacin
Some metal complexes of norfloxacin (NOR) with the formula [M(NOR) 2 ]X 2 · n H 2 O [M = Zn(II), (X = Cl − , AcO − , Br − and I − ), Cd(II), (X = Cl − , NO 3 − and SO 4 2− ) and Hg(II) (X = Cl − , NO 3 − and AcO − )] have been synthesised and studied using elemental analysis (CHN), electronic (UV–vi...
Saved in:
Published in: | Journal of thermal analysis and calorimetry Vol. 102; no. 1; pp. 225 - 232 |
---|---|
Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Dordrecht
Springer Netherlands
01-10-2010
Springer |
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Some metal complexes of norfloxacin (NOR) with the formula [M(NOR)
2
]X
2
·
n
H
2
O [M = Zn(II), (X = Cl
−
, AcO
−
, Br
−
and I
−
), Cd(II), (X = Cl
−
, NO
3
−
and SO
4
2−
) and Hg(II) (X = Cl
−
, NO
3
−
and AcO
−
)] have been synthesised and studied using elemental analysis (CHN), electronic (UV–vis, mid infrared, mass, and
1
H-NMR spectra), TG and DTA. The thermal decomposition processes of these complexes were discussed. The Correlation coefficient, the activation energies,
E
*, the pre-exponential factor,
A
, the entropies,
S
*, enthalpies,
H
* and Gibbs free energies,
G
*, of the thermal decomposition reactions have been derived from thermogravimetric (TG) and differential thermogravimetric (DTG) curves. The characterization of the final products of the decomposition was achieved by IR spectra and X-ray powder diffraction (XRD). Using the Coats–Redfern and Horowitz–Metzeger methods, kinetic analysis of the thermogravimetric data is performed. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1388-6150 1588-2926 1572-8943 |
DOI: | 10.1007/s10973-009-0404-x |