Organodiiron(II)-complexes containing a long conjugated hydrazonato spacer. Synthesis, characterization, electrochemical and structural studies

Manzur, C; Fuentealba, M; Millan, L; Gajardo, F.; Garland, MT; Baggio R.; Mata, JA; Hamon, JR; Carrillo, D.

Abstract

Organometallic hydrazines of general formula Me, (2)+PF6-; MeO, (3)+ PF6-; Cl, (4)+PF6-) react with equimolar quantities of (E)-4- (2-ferrocenylvinyl)-benzaldehyde, (E)-[(?5-Cp) Fe(?5-C5H4)-CH=CH-C 6H4CHO], to afford stereoselectively, the new homodimetallic hydrazones formulated as (E)-[(?5-Cp) Fe(?6-p-RC6H4)-NHN=CH- C6H4=CH-CH-(?5-C5 H4)Fe(?5-Cp)]+PF6- (R=H, (5)+PF6-; Me, (6)+PF6-; MeO, (7)+PF 6-; Cl, (8)+PF6-). These compounds were fully characterized by elemental analysis and spectroscopic techniques (1H-and 13C-NMR, IR and UV-vis) and, in the case of complex (6)+PF6-, by single crystal X-ray diffraction methods. The rotations of the ferrocenyl unit by 37.2 out of the -NHN-CH-C6H 4=CH-CH- spacer and coordinated phenyl ring planes, may generate an unfavorable structure to allow ?-electron delocalization along the entire hydrazonato backbone between the two metals separated through bonds by more than 1.8 nm, as confirmed by the electrochemical data. © 2002 Elsevier Science B.V. All rights reserved.

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Título según WOS: Organodiiron(II)-complexes containing a long conjugated hydrazonato spacer. Synthesis, characterization, electrochemical and structural studies
Título según SCOPUS: Organodiiron(II)-complexes containing a long conjugated hydrazonato spacer. Synthesis, charcterization, electrochemical and structural studies
Título de la Revista: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volumen: 660
Número: 1
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2002
Página de inicio: 71
Página final: 77
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0022328X02017692
DOI:

10.1016/S0022-328X(02)01769-2

Notas: ISI, SCOPUS