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In the title compound, (C12H25NH3)2[Cu(C6Cl2O4)2(C2H5OH)2], the CuII atom lies on a crystallographic inversion center and is coordinated in a distorted octa­hedral geometry by four O atoms of two chloranilate ligands and two O atoms of two ethanol mol­ecules which are trans to each other in the axial positions. In the crystal, the CuII 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-do­decyl­ammonium cation, forming a two-dimensional network parallel to the ab plane.

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In the title coordination polymer, [Mn(C6Cl2O4)(C2H5OH)2]n, the MnII atom and the chloranilate [systematic name: 2,5-di­chloro-3,6-dioxo­cyclo­hexa-1,4-diene-1,4-bis­(olate)] ion lie on crystallographic inversion centers. The geometry around the MnII atom is a distorted octa­hedron involving four O atoms of two chloranilate ions and two O atoms from two ethanol mol­ecules. The chloranilate ion serves as a bridging ligand between the MnII ions, leading to an infinite linear chain along the b-axis direction. The chains are linked by O—H...O hydrogen bonds between the apically coordinating ethanol mol­ecule and the chloranilate ion, affording a two-dimensional layer expanding parallel to the ab plane.

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The title complex, [Co(C21H16N4)2][Co(NCS)4]·CH3OH, consists of one [Co{C(py)4}2]2+ complex cation [C(py)4 = tetra­kis­(pyridin-2-yl)methane], one [Co(NCS)4]2− complex anion and a methanol solvent mol­ecule. In the cation, the CoII atom is coordinated by six N atoms of two C(py)4 ligands in a distorted octa­hedral geometry. In the anion, the CoII atom is coordinated by the N atoms of four NCS ligands in a distorted tetra­hedral geometry. The methanol mol­ecule is disordered and was modelled over three orientations (occupancies 0.8:0.1:0.1). There are two weak hydrogen-bond-like inter­actions between the methanol solvent mol­ecule and NCS ligands of the anion [O...S = 3.283 (3) and 3.170 (2) Å].
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