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Self‐Organization of Dendritic Supermolecules, Based on Isocyanide–Gold(I), –Copper(I), –Palladium(II), and –Platinum(II) Complexes, into Micellar Cubic Mesophases
Author(s) -
Coco Silverio,
Cordovilla Carlos,
Donnio Bertrand,
Espinet Pablo,
GarcíaCasas María Jesús,
Guillon Daniel
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200800128
Subject(s) - mesophase , thermotropic crystal , isocyanide , palladium , mesogen , crystallography , platinum , chemistry , dendrimer , copper , polymer chemistry , stereochemistry , organic chemistry , polymer , liquid crystalline , catalysis , phase (matter)
First‐ and second‐generation dendrimers with an isocyanide group as the focal functional point (CN‐G n ; n : 1,2) and their corresponding organometallic complexes [MCl(CN‐G n )] (M: Au, Cu), [{CuCl(CN‐G n ) 2 } 2 ], and trans‐ [MI 2 (CN‐G n ) 2 ] (M: Pd, Pt) have been synthesized. The free ligands and the first‐generation complexes do not show mesogenic behavior, but all of the second‐generation complexes display a thermotropic micellar cubic mesophase, over a large temperature range, and some of them directly at room temperature. The structure of the mesophase consists of the packing of two, discrete polyhedral micellar aggregates in a three‐dimensional cubic Im $\bar 3$ m lattice.