Correlation of thermal and spectral properties of zinc(II) complexes of pyridinecarboxylic acids with their crystal structures

Correlation of thermal and spectral properties of zinc(II) complexes of pyridinecarboxylic acids with their crystal structures

Three zinc(II) pyridinecarboxylate complexes, namely [Zn(nicot) 2(H 2O) 4], [Zn(picol) 2(H 2O) 2]·2H 2O and [Zn(dipicolH) 2]·3H 2O, where nicot = nicotinate, picol = picolinate and dipicolH = hydrogenpicolinate were prepared and characterised by the methods of the thermal analysis (TG/DTG, DTA), inf...

Full description

Saved in:
Bibliographic Details
Published in:Thermochimica acta Vol. 423; no. 1; pp. 149 - 157
Main Authors: Vargová, Zuzana, Zeleòák, Vladimı́r, Cı́saøová, Ivana, Györyová, Katarı́na
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 01-12-2004
Elsevier Science
Subjects:
Chemistry
Coordination compounds
Dipicolinic acid
Exact sciences and technology
Inorganic chemistry and origins of life
Nicotinic acid
Picolinic acid
Preparations and properties
Structures
Thermal decomposition
Zinc complexes
Dipicolinic acid
Picolinic acid
Zinc complexes
Structures
Thermal decomposition
Nicotinic acid
Divalent metal Complexes
Pyrolysis
Zinc II Complexes
Organic ligand
B-Vitamins
Transition metal Complexes
Pyridine derivatives
Crystalline structure
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three zinc(II) pyridinecarboxylate complexes, namely [Zn(nicot) 2(H 2O) 4], [Zn(picol) 2(H 2O) 2]·2H 2O and [Zn(dipicolH) 2]·3H 2O, where nicot = nicotinate, picol = picolinate and dipicolH = hydrogenpicolinate were prepared and characterised by the methods of the thermal analysis (TG/DTG, DTA), infrared spectroscopy and elemental analysis. The structure of the complex [Zn(nicot) 2(H 2O) 4] was studied by the single crystal XRD. The correlation of the thermal and spectral properties of the complexes with their structures is discussed in the study. The correlation of the spectral data with the structures leads to ambiguous results while the accord and coherence was found between thermal properties and structures of the complexes for both steps of the thermal decomposition (dehydratation and pyrolysis of organic ligand).
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2004.03.016