Mimicking [2,2]paracyclophane topology: molecular clips for the coordination-driven cofacial assembly of pi-conjugated systems.
Self-assembly of CuI dimers, featuring a bridging phosphole ligand, and ditopic cyano-substituted chromophores affords nanosize supramolecular cationic rectangles. Due to the short Cu-Cu distance in the bimetallic clips, the coordinated chromophores are forced to participate in cofacial pi-pi interactions as evidenced by X-ray data. In addition, intermolecular pi-pi interactions in the solid state are observed leading to infinite columns of pi-stacked (para-phenylenevinylene)-based chromophores.
Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
Brigitte
B
Nohra
Sébastien
S
Graule
Christophe
C
Lescop
Régis
R
Réau