Publications by authors named "Akiko Himegi"

Hydrogen-bond supported intercalation compounds constructed from three types of two-dimensional layers and common guests, {(Hha)[Cu(CA)(EtOH)]} (1), {(Hha)[Cu(CA)(EtOH)]} (2), and {(Hha)[Cu(CA)]} (3) (ha = hexylamine), have been synthesized and characterized. The hexylaminium cations are introduced between the anionic layers of the metal-chloranilate by not only electrostatic interactions but also hydrogen bonding interactions. These compounds show reversible EtOH adsorption and desorption accompanied by a structural transformation.

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In the title coordination polymer, [Mn(C6Cl2O4)(C2H5OH)2] n , the Mn(II) atom and the chloranilate [systematic name: 2,5-di-chloro-3,6-dioxo-cyclo-hexa-1,4-diene-1,4-bis-(olate)] ion lie on crystallographic inversion centers. The geometry around the Mn(II) atom is a distorted octa-hedron involving four O atoms of two chloranilate ions and two O atoms from two ethanol mol-ecules. The chloranilate ion serves as a bridging ligand between the Mn(II) ions, leading to an infinite linear chain along the b-axis direction.

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In the title compound, (C12H25NH3)2[Cu(C6Cl2O4)2(C2H5OH)2], the Cu(II) atom lies on a crystallographic inversion center and is coordinated in a distorted octa-hedral geometry by four O atoms of two chloranilate ligands and two O atoms of two ethanol mol-ecules which are trans to each other in the axial positions. In the crystal, the Cu(II) mononuclear dianions are linked by O-H⋯O hydrogen bonds into a tape along the a-axis direction. The tapes are linked through N-H⋯O hydrogen bonds between the dianion and the n-do-decyl-ammonium cation, forming a two-dimensional network parallel to the ab plane.

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The asymmetric unit of the title coordination polymer, {[Mn(C(6)Cl(2)O(4))(C(10)H(8)N(2))]·2C(2)H(5)OH}(n), consists of one Mn(II) ion, one 2,2'-bipyridine (bpy) ligand, one chloranilate (CA(2-)) ligand and two ethanol solvent mol-ecules. The Mn(II) ion is octa-hedrally coordinated by two N atoms of one bpy ligand and four O atoms of two chloranilate ions. The chloranilate ion serves as a bridging ligand between the Mn(II) ions, leading to an infinite zigzag chain along [101].

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