Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)

The synthesis, an improved refined crystal and molecular structure re-determination, and the thermal decomposition behavior of two Zn(II) derivatives of isocinchomeronic acid (2,5-pyridinedicarboxylic acid or H22,5-pydc) are presented. [Zn(2,5-pydc)(H2O)3Zn(2,5-pydc)(H2O)2]2 (1) crystallizes in the...

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Autores principales: Sileo, Elsa E., Piro, Oscar Enrique, Rigotti, Graciela, Blesa, Miguel Ángel, Suman de Araujo, Alexandre, Castellano, Eduardo Ernesto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Física
2,5-Pyridinedicarboxylate
Isocinchomeronate
Zinc
Structure
Thermal properties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146504
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-146504
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
2,5-Pyridinedicarboxylate
Isocinchomeronate
Zinc
Structure
Thermal properties
spellingShingle Física
2,5-Pyridinedicarboxylate
Isocinchomeronate
Zinc
Structure
Thermal properties
Sileo, Elsa E.
Piro, Oscar Enrique
Rigotti, Graciela
Blesa, Miguel Ángel
Suman de Araujo, Alexandre
Castellano, Eduardo Ernesto
Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
topic_facet Física
2,5-Pyridinedicarboxylate
Isocinchomeronate
Zinc
Structure
Thermal properties
description The synthesis, an improved refined crystal and molecular structure re-determination, and the thermal decomposition behavior of two Zn(II) derivatives of isocinchomeronic acid (2,5-pyridinedicarboxylic acid or H22,5-pydc) are presented. [Zn(2,5-pydc)(H2O)3Zn(2,5-pydc)(H2O)2]2 (1) crystallizes in the triclinic P-1 space group with a = 7.106(2), b = 11.450(2), c = 11.869(1) A, α = 107.29(1), β = 104.08(1), γ = 90.32(2)°, and Z = 2. [Zn(2,5-pydc)(H2O)2] · H2O (2) is orthorhombic (P212121 space group), with a = 7.342(1), b = 9.430(1), c = 13.834(2) A, and Z = 4. The structures were refined to agreement R; 1-factors of 0.0315 (1) and 0.0336 (2). Complex (1) is arranged as molecular Zn4(2,5-pydc)4(H2O)10 tetramers, the cages of which define channels that remain unblocked by anions. Compound (2) is polymeric with Zn(2,5-pydc)(H2O)2 and Zn(2,5-pydc)(H2O)3 units linked through bridging ligands. Both compounds were synthesized under mild conditions in aqueous media, without need to resort to hydrothermal media. Changing the pH from 4.51 to 5.75 suffices to direct the chemical processes toward the orthorhombic compound rather than to the triclinic one.
format Articulo
Articulo
author Sileo, Elsa E.
Piro, Oscar Enrique
Rigotti, Graciela
Blesa, Miguel Ángel
Suman de Araujo, Alexandre
Castellano, Eduardo Ernesto
author_facet Sileo, Elsa E.
Piro, Oscar Enrique
Rigotti, Graciela
Blesa, Miguel Ángel
Suman de Araujo, Alexandre
Castellano, Eduardo Ernesto
author_sort Sileo, Elsa E.
title Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
title_short Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
title_full Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
title_fullStr Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
title_full_unstemmed Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
title_sort structure and thermal reactivity of zn(ii) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid)
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/146504
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