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Organized Nanostructured Complexes of Inorganic Clusters and Surfactants That Exhibit Thermal Solid‐State Transformations
Author(s) -
Camerel Franck,
Antonietti Markus,
Faul Charl F. J.
Publication year - 2003
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.200204528
Subject(s) - thermal , solid state , chemical engineering , materials science , chemical physics , nanotechnology , chemistry , physics , thermodynamics , engineering
Abstract Facile organization of the inorganic crown‐shaped [Ni 3 P 3 S 12 ] 3− ion ( 1 ) into room‐temperature liquid‐crystalline materials by complexation with double‐tail ammonium surfactants is achieved by the ionic self‐assembly (ISA) route. Small‐angle Xray diffraction, UV/Vis spectroscopy, and 31 P NMR analyses reveal that these complexes show an interesting solid‐state structure transition. Upon heating, the inorganic crown species polymerizes to the inorganic polyelectrolyte $\rm{^{1}_{\infty }}$ [NiPS 4 ] − . This structural transition is reversible, and involves a solvent/dissolution cycle. The facile preparation and facile optional induction of phase and structural changes make these complexes candidates for a number of applications in which cooperative, metastable switching with sufficient contrast of optical and solid‐state properties is required.