INQUISUR   21779
INSTITUTO DE QUIMICA DEL SUR
Unidad Ejecutora - UE
artículos
Título:
Crystal structure and spectroscopic properties of polymeric adducts of the tetra-u-haloaspirinate dicopper(II)
Autor/es:
EDUARDO M. RUSTOY; MARIELA A. AGOTEGARAY; OSCAR E. PIRO; EDUARDO E. CASTELLANO
Revista:
JOURNAL OF COORDINATION CHEMISTRY
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Lugar: Londres; Año: 2012 vol. 65 p. 2341 - 2352
ISSN:
0095-8972
Resumen:
Eight new copper(II) complexes with halo-aspirinate anions have been synthesized: [Cu2(Fasp)4(MeCN)2].2MeCN (1), [Cu2(Clasp)4(MeCN)2].2MeCN (2), [Cu2(Brasp)4(MeCN)2].2MeCN (3), {[Cu2(Fasp)4(Pyrz)].2MeCN}n (4), {[Cu2(Clasp)4(Pyrz)].2MeCN}n (5), [Cu2(Brasp)4(Pyrz)]n (6), [Cu2(Clasp)4(4,4´-Bipy)]n (7), and [Cu2(Brasp)4(4,4´-Bipy)]n (8) (Fasp: fluor-aspirinate; Clasp: chloro-aspirinate; Brasp: bromo-aspirinate; MeCN: acetonitrile; Pyrz: pyrazine; 4,40-Bipy: 4,40-bipyridine). The crystal structure of two 2 and 4 have been determined by X-ray diffraction methods. All compounds have been studied employing elemental analysis, IR, and UV-Visible spectroscopic techniques. The results have been compared with previous data reported for complexes with similar structures.2(Fasp)4(MeCN)2].2MeCN (1), [Cu2(Clasp)4(MeCN)2].2MeCN (2), [Cu2(Brasp)4(MeCN)2].2MeCN (3), {[Cu2(Fasp)4(Pyrz)].2MeCN}n (4), {[Cu2(Clasp)4(Pyrz)].2MeCN}n (5), [Cu2(Brasp)4(Pyrz)]n (6), [Cu2(Clasp)4(4,4´-Bipy)]n (7), and [Cu2(Brasp)4(4,4´-Bipy)]n (8) (Fasp: fluor-aspirinate; Clasp: chloro-aspirinate; Brasp: bromo-aspirinate; MeCN: acetonitrile; Pyrz: pyrazine; 4,4´-Bipy: 4,40-bipyridine). The crystal structure of two 2 and 4 have been determined by X-ray diffraction methods. All compounds have been studied employing elemental analysis, IR, and UV-Visible spectroscopic techniques. The results have been compared with previous data reported for complexes with similar structures.