Back to Search
Start Over
Thermal characterization of new complexes of Zn(II) and Cd(II) with some bipyridine isomers and propionates.
- Source :
- Journal of Thermal Analysis & Calorimetry; Sep2008, Vol. 93 Issue 3, p789-794, 6p, 1 Diagram, 3 Charts, 2 Graphs
- Publication Year :
- 2008
-
Abstract
- New mixed ligand complexes of the following stoichiometric formulae: M(2-bpy)<subscript>2</subscript>(RCOO)<subscript>2</subscript>· nH<subscript>2</subscript>O, M(4-bpy)(RCOO)<subscript>2</subscript>·H<subscript>2</subscript>O and M(2,4’-bpy)<subscript>2</subscript>(RCOO)<subscript>2</subscript>·H<subscript>2</subscript>O (where M(II)=Zn, Cd; 2-bpy=2,2’-bipyridine, 4-bpy=4,4′-bipyridine, 2,4′-bpy=2,4′-bipyridine; R=C<subscript>2</subscript>H<subscript>5</subscript>; n=2 or 4) were prepared in pure solid-state. These complexes were characterized by chemical and elemental analysis, IR and conductivity studies. Thermal behaviour of compounds was studied by means of DTA, DTG, TG techniques under static conditions in air. The final products of pyrolysis of Cd(II) and Zn(II) compounds were metal oxides MO. A coupled TG/MS system was used to analyse of principal volatile products of thermal decomposition or fragmentation of Zn(4-bpy)(RCOO)2·H2O under dynamic air and argon atmosphere. The principal species correspond to: C<superscript>+</superscript>, CH<superscript>+</superscript>, CH<subscript>3</subscript> <superscript>+</superscript>, C<subscript>2</subscript>H<subscript>2</subscript> <superscript>+</superscript>, HCN<superscript>+</superscript>, C<subscript>2</subscript>H<subscript>5</subscript> <superscript>+</superscript> or CHO<superscript>+</superscript>, CH<subscript>2</subscript>O<superscript>+</superscript> or NO<superscript>+</superscript>, CO<subscript>2</subscript> <superscript>+</superscript>, <superscript>13</superscript>C<superscript>16</superscript>O<subscript>2</subscript> <superscript>+</superscript> and <superscript>12</superscript>C<superscript>16</superscript>O<superscript>18</superscript>O<superscript>+</superscript> and others; additionally CO<superscript>+</superscript> in argon atmosphere. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13886150
- Volume :
- 93
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Journal of Thermal Analysis & Calorimetry
- Publication Type :
- Academic Journal
- Accession number :
- 34729411
- Full Text :
- https://doi.org/10.1007/s10973-008-9204-y