Intercalation of organic molecules in 2D copper (II) nitroprusside: Intermolecular interactions and magnetic properties

Autor: H. Osiry, Alejandro Rodríguez, Edilso Reguera, A. Cano, Raúl E. Carbonio, A.A. Lemus-Santana
Rok vydání: 2015
Předmět:
Zdroj: Journal of Solid State Chemistry. 230:374-380
ISSN: 0022-4596
DOI: 10.1016/j.jssc.2015.07.042
Popis: This contribution discusses the intercalation of imidazole and its 2-ethyl derivative, and pyridine in 2D copper nitroprusside. In the interlayer region, neighboring molecules remain interacting throu gh their dipole and quadrupole moments, which supports the solid 3D crystal structure. The crystal structure of this series of intercalation compounds was solved and refined from powder X-ray diffraction patterns complemented with spectroscopic information. The intermolecular interactions were studied from the refined crystal structures and low temperature magnetic measurements. Due to strong attractive forces between neighboring molecules, the resulting π–π cloud overlapping enables the ferromagnetic coupling between metal centers on neighboring layers, which was actually observed for the solids containing imidazole and pyridine as intercalated molecules. For these two solids, the magnetic data were properly described with a model of six neighbors. For the solid containing 2-ethylimidazole and for 2D copper nitroprusside, a model of four neighbors in a plane is sufficient to obtain a reliable data fitting. Fil: Osiry, Hernández. Instituto Politécnico Nacional. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada; México Fil: Cano, A.. Instituto Politécnico Nacional. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada; México Fil: Lemus Santana, Ana Adela. Instituto Politécnico Nacional. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada; México Fil: Rodríguez, Alejandro. Instituto Politécnico Nacional. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada; México Fil: Carbonio, Raul Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Reguera, Edilso. Instituto Politécnico Nacional. Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada; México
Databáze: OpenAIRE