New chiral ferrocenyl-pyridinium salts for non-linear optics

Citation
K. Roque et al., New chiral ferrocenyl-pyridinium salts for non-linear optics, J ORGMET CH, 637, 2001, pp. 531-537
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022-328X → ACNP
Volume
637
Year of publication
2001
Pages
531 - 537
Database
ISI
SICI code
0022-328X(200112)637:<531:NCFSFN>2.0.ZU;2-9
Abstract
Three enantiomerically pure chiral analogues of 4-[(E)-2-ferrocenyl-ethenyl ]pyridinium iodide have been synthesized. Their bulk efficiencies in second harmonic generation (SHG) have been measured (from 0 to 0.25 times that of urea). Furthermore, the crystal structures for two of them and for the par ent 4-[(E)-2-ferrocenyl-ethenyl]pyridinium iodide have been determined by X -ray diffraction studies. Crystal packing could explain the very different SHG bulk efficiencies in this family of materials. (C) 2001 Elsevier Scienc e B.V. All rights reserved.