Ferrocene as a ferromagnetic coupler. Synthesis and characterization of a ferrocene bridged polychlorotriphenylmethyl diradical

Authors
Elsner, O Ruiz-Molina, D Ratera, I Vidal-Gancedo, J Rovira, C Veciana, J
Citation
O. Elsner et al., Ferrocene as a ferromagnetic coupler. Synthesis and characterization of a ferrocene bridged polychlorotriphenylmethyl diradical, J ORGMET CH, 637, 2001, pp. 251-257
Citations number
43
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
637
Year of publication
2001
Pages
251 - 257
Database
ISI
SICI code
0022-328X(200112)637:<251:FAAFCS>2.0.ZU;2-F
Abstract
A polychlorotriphenylmethyl diradical connected by a 1,1'-ferrocenylendivin ylene bridge has been synthesized and characterized. ESR frozen solution ex periments down to helium temperature showed that the organometallic unit ac ts as a ferromagnetic coupler. This fact was supported by ZINDO/1 semiempir ical calculations, which showed that the two singly occupied molecular orbi tals (SOMOs) are non disjoint in addition to be almost degenerated. (C) 200 1 Elsevier Science BN. All rights reserved.