Paramagnetic rod-like liquid crystals, bis[5-(4-alkoxybenzoyloxy)salicylaldehyde]copper(II)

Autor:	José Luis Serrano, Mercedes Marcos, Eduardo Campillos, Pablo J. Alonso
Rok vydání:	1991
Předmět:	Mesogen chemistry.chemical_element Mesophase General Chemistry Photochemistry Copper law.invention chemistry.chemical_compound Paramagnetism Crystallography Homologous series Salicylaldehyde chemistry law Materials Chemistry Alkoxy group Electron paramagnetic resonance
Zdroj:	Journal of Materials Chemistry. 1:197
ISSN:	1364-5501 0959-9428
DOI:	10.1039/jm9910100197
Popis:	The synthesis and mesogenic behaviour of a homologous series of copper(II) complexes derived from 5-(4-alkoxybenzoyloxy)salicylaldehydes are reported. The complexes exhibit smectic C mesomorphism for alkoxy groups containing eight or more carbon atoms in the terminal chains. These aldehydes therefore favour the formation of metal complexes with liquid-crystalline properties. Electron paramagnetic resonance (EPR) measurements were performed as a function of temperature. The signal can be associated with square-planar Cu2+ ions having an |x2y2 > ground state. Molecular orientation in the mesophase under a magnetic field is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::54478b262acb70813240a5cd08fb2e6d https://doi.org/10.1039/jm9910100197 Zobrazit plný text záznamu