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Mesomorphic Metallo-Dendrimers Based on the Metal-Metal Bonded Ru2(CO)4 Sawhorse Unit
Auteur(s)
Frein, Stephane
Auzias, Mathieu
Sondenecker, Aline
Vieille-Petit, Ludovic
Guintchin, Boris
Maringa, Natacha
Barbera, Joaquin
Date de parution
2008
In
Chem. Mater.
Vol.
4
No
20
De la page
1340
A la page
1343
Résumé
Dinuclear Ru complexes contg. the stable metal-metal bonded Ru2(CO)4 sawhorse unit with two dendritic carboxylato bridges were synthesized and characterized. All complexes Ru2(CO)4(O2CR)2L2 (R = R1, R2, R3) contg. cyanobiphenyl-based poly(arylester) dendrons of 1st (R1), 2nd (R2), and 3rd (R3) generation and PPh3, pyridine, or 4-picoline ligands L proved to be mesomorphic, giving rise to smectic A or smectic A and nematic phases. The supramol. organization within the smectic A phase is governed by the nature and structure of the mesogenic units and dendritic core. Such materials are of interest for the design of catalytically active anisotropic fluids. [on SciFinder(R)]
Identifiants
Type de publication
journal article
