Organized Nanostructured Complexes of Inorganic Clusters and Surfactants That Exhibit Thermal Solid‐State Transformations

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 X-ray 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 infinity [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.

Symmetrical 1,3‐Dialkylimidazolium Based Ionic Liquid Crystals

“…2,[4][5][6][7][8][9][10][11][12] When the alkyl chains are suitably extended, ILs may exhibit liquid crystal properties, and are called ionic liquid crystals (ILCs). Well-known applications of these ILCs are in designing anisotropic ion-conductive materials, [13][14][15][16][17][18] self-assembled nanomaterials, [19][20][21][22][23][24] and as ordered solvents, [25][26][27] etc. Literature survey reveals that, much of the attention has been paid on the investigation of the influence of systematic variation of chain lengths and counter ions on the LC behavior of 1-alkyl-3-methyl, and functionalized 1,3-dialkylimidazolium salts.…”

Supramolecular organogels formed by monochain derivatives of succinic acid

“…Low-molecular-mass organic gelators (LMOG) have attracted widespread attention of chemists and biochemists [1][2][3][4][5][6][7][8], due to their unique supramolecular structures and potential applications in the fabrication of sensors [9], liquid crystallines [10,11], photochemistry [12,13], and electrochemistry [14,15], in templates for preparing inorganic nanomaterials [16,17], and in many other industrial fields, such as cosmetics, paper and foods [1][2][3][4][5][6][7][8]. It is well know that organogelator molecules self-assemble into aggregates of diverse morphologies through noncovalent interaction (hydrogen bonding, van der Waals, π-π stacking, coordination, charge transfer, etc.)…”

Organogelation by Polymer Organogelators with a L‐Lysine Derivative: Formation of a Three‐Dimensional Network Consisting of Supramolecular and Conventional Polymers

“…[1][2][3][4][5][6][7][8] Indeed, the organogels and organogelators have been used, for example, as organic templates for the fabrication of mesoporous polymer materials [9] and nanoscale designed inorganic materials. [10][11][12][13] Furthermore, they have been applied as liquid crystals [14][15][16] and in photochemistry [17][18][19][20][21] and electrochemistry. [22][23][24] In addition, gelators have been developed not only as an academic interests but also for industrial fields, such as cosmetics, health care, textiles, foods, and oil technology.…”