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 H 22,5-pydc) are presented. [Zn(2,5-pydc)(H2O) 3Zn(2,5-pydc)(H2O)2]2 (1) crystallizes in th...
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todo:paper_10400400_v19_n4_p651_Sileo2023-10-03T15:57:45Z Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid) Sileo, E.E. Piro, O.E. Rigotti, G. Blesa, M.A. De Araujo, A.S. Castellano, E.E. 2,5-Pyridinedicarboxylate Isocinchomeronate Structure Thermal properties Zinc 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 H 22,5-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) Å, 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 (P21212 1 space group), with a = 7.342(1), b = 9.430(1), c = 13.834(2) Å, 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. © 2008 Springer Science+Business Media, LLC. Fil:Sileo, E.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10400400_v19_n4_p651_Sileo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
2,5-Pyridinedicarboxylate Isocinchomeronate Structure Thermal properties Zinc |
| spellingShingle |
2,5-Pyridinedicarboxylate Isocinchomeronate Structure Thermal properties Zinc Sileo, E.E. Piro, O.E. Rigotti, G. Blesa, M.A. De Araujo, A.S. Castellano, E.E. Structure and thermal reactivity of Zn(II) salts of isocinchomeronic acid (2,5-pyridinedicarboxylic acid) |
| topic_facet |
2,5-Pyridinedicarboxylate Isocinchomeronate Structure Thermal properties Zinc |
| 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 H 22,5-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) Å, 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 (P21212 1 space group), with a = 7.342(1), b = 9.430(1), c = 13.834(2) Å, 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. © 2008 Springer Science+Business Media, LLC. |
| format |
JOUR |
| author |
Sileo, E.E. Piro, O.E. Rigotti, G. Blesa, M.A. De Araujo, A.S. Castellano, E.E. |
| author_facet |
Sileo, E.E. Piro, O.E. Rigotti, G. Blesa, M.A. De Araujo, A.S. Castellano, E.E. |
| author_sort |
Sileo, E.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) |
| url |
http://hdl.handle.net/20.500.12110/paper_10400400_v19_n4_p651_Sileo |
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