M+(crown ether) supramolecular cations (M+= K+, Rb+, NH4+) for controlling magnetic properties of monovalent [Ni(dmit)(2)](-) salts

Takamatsu N; Akutagawa T; Hasegawa T; Nakamura T; Inabe T; Fujita W; Awaga K

Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.343, 481-486, 2000

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M+(crown ether) supramolecular cations (M+= K+, Rb+, NH4+) for controlling magnetic properties of monovalent [Ni(dmit)(2)](-) salts

Takamatsu N, Akutagawa T, Hasegawa T, Nakamura T, Inabe T, Fujita W, Awaga K

Supramolecular cations (SC+) of K+, Rb+, or NH4+(crown ether) were incorporated into the monovalent [Ni(dmit)(2)](-) salts. The K+ and Rb+(DA18-crown-6) units had a planar disk-shaped SC+ structure, while the [NH4+(15-crown-5)(2)](2) was the barrel type SC+ structure. The [Ni(dmit)(2)](-) arrangement and magnetic properties of these salts depended on the coordination properties in the cation structures.