Abstract
Inorganic-organic hybrid crystals were successfully obtained as single crystals by using polyoxotungstate anion and cationic dodecylpyridazinium (C12pda) and dodecylpyridinium (C12py) surfactants. The decatungstate (W10) anion was used as the inorganic component, and the crystal structures were compared. In the crystal comprising C12pda (C12pda-W10), the heterocyclic moiety directly interacted with W10, which contributed to a build-up of the crystal structure. On the other hand, the crystal consisting of C12py (C12py-W10) had similar crystal packing and molecular arrangement to those in the W10 crystal hybridized with other pyridinium surfactants. These results indicate the significance of the heterocyclic moiety of the surfactant to construct hybrid crystals with polyoxometalate anions.
Highlights
Weak chemical interactions, such as hydrogen bonding or van der Waals interactions, are crucial for the construction and function of biological molecules, such as proteins, DNA or RNA [1]
We report the syntheses and structures of polyoxotungstate hybrid crystals containing heterocyclic surfactants, including the first example of a POM-surfactant crystal comprised of a pyridazinium surfactant
Inorganic-organic hybrid crystals comprised of polyoxotungstate and surfactants having a heterocyclic moiety, [C4H4N2(C12H25)]4[W10O32]·2(CH3)2CO (1) and [C5H5N(C12H25)]4[W10O32]·4C2H5OH (2), were successfully synthesized
Summary
Weak chemical interactions, such as hydrogen bonding or van der Waals interactions, are crucial for the construction and function of biological molecules, such as proteins, DNA or RNA [1]. Employing these weak chemical interactions provides effective options for building up synthetic molecular architectures [2,3,4,5]. Conductive hybrid compounds composed of organic cations and inorganic anions have been reported, where the emergence of conductive functions is prompted by precise control of the molecular structures and arrangements of the components [7]. The precisely controlled inorganic-organic materials have been obtained as crystalline materials
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