Artículo
Abstract:
The crystal and molecular structures of two copper(II) dinuclear complexes bridged by the inorganic pyrophosphate tetraanion, namely, [Cu(bipy)(cis-H 2P 2O 7)] 2·3H 2O 1 and [Cu 2(terpy) 2(HP 2O 7)] ·2H 2O(OH) 2, are reported (bipy = 2,2′-pyridine; terpy = 2,2′:6′,2″-terpyridine). Both compounds are characterized by two very strong OHO interactions which play a fundamental role in their crystal structure building. Compound 1 is identical to the recently reported compound 1a (Marino et al. Inorg. Chem. 50 (2011) 378-389), except for the supramolecular interaction which is revised in the present communication. Analysis of our data for 1 reveals the existence of a strong double well OH-O′ ↔ O-(HO)′ interaction around an inversion center (OO: 2.433(2) Å), which binds dinuclear units together into [100] polymeric chains. Dinuclear compound 2 is monoclinic, halved by a twofold axis bisecting it through the central O atom of the bridge. The extreme disorder found in the solvates in 2 prevented an accurate description of the solvato content, and a detailed analysis of the H-bonding scheme. However, the extremely short O-O = 2.473(2) Å intermolecular distance points to a (quasi) symmetrical OHO interaction. © 2012 Elsevier B.V. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Two dinuclear pyrophosphate-bridged copper(II) complexes displaying unusually strong OHO interactions |
| Autor: | Perec, M.; Sartoris, R.P.; Calvo, R.; Baggio, R. |
| Filiación: | INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Ciudad Universitaria, 1428 Buenos Aires, Argentina Departamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral and INTEC (CONICET-UNL), Güemes 3450, 3000 Santa Fe, Argentina Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Avda. Gral. Paz 1499, 1650 San Martin, Argentina |
| Palabras clave: | π-π bonds; Binuclear copper(II) complex; Crystal structure; EPR; H-bonds; Pyrophosphate-bridge |
| Año: | 2012 |
| Volumen: | 22 |
| Página de inicio: | 141 |
| Página de fin: | 145 |
| DOI: | http://dx.doi.org/10.1016/j.inoche.2012.05.045 |
| Título revista: | Inorganic Chemistry Communications |
| Título revista abreviado: | Inorg. Chem. Commun. |
| ISSN: | 13877003 |
| CODEN: | ICCOF |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13877003_v22_n_p141_Perec |
Referencias:
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Citas:
---------- APA ----------
Perec, M., Sartoris, R.P., Calvo, R. & Baggio, R. (2012) . Two dinuclear pyrophosphate-bridged copper(II) complexes displaying unusually strong OHO interactions. Inorganic Chemistry Communications, 22, 141-145.http://dx.doi.org/10.1016/j.inoche.2012.05.045
---------- CHICAGO ----------
Perec, M., Sartoris, R.P., Calvo, R., Baggio, R. "Two dinuclear pyrophosphate-bridged copper(II) complexes displaying unusually strong OHO interactions" . Inorganic Chemistry Communications 22 (2012) : 141-145.http://dx.doi.org/10.1016/j.inoche.2012.05.045
---------- MLA ----------
Perec, M., Sartoris, R.P., Calvo, R., Baggio, R. "Two dinuclear pyrophosphate-bridged copper(II) complexes displaying unusually strong OHO interactions" . Inorganic Chemistry Communications, vol. 22, 2012, pp. 141-145.http://dx.doi.org/10.1016/j.inoche.2012.05.045
---------- VANCOUVER ----------
Perec, M., Sartoris, R.P., Calvo, R., Baggio, R. Two dinuclear pyrophosphate-bridged copper(II) complexes displaying unusually strong OHO interactions. Inorg. Chem. Commun. 2012;22:141-145.http://dx.doi.org/10.1016/j.inoche.2012.05.045
