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Journal logoIUCrDATA
ISSN: 2414-3146

April 2020 issue

Highlighted illustration

Cover illustration: The salt bis(3-methyl-1-propyl-1H-imidazol-3-ium) bis­(4,6-disulfanidyl-4,6-disulfanyl­idene-1,2,3,5,4,6-tetra­thia­diphosphinane-[kappa]3S2,S4,S6)nickel, [PMIM]2[Ni(P2S8)2] (PMIM = 3-methyl-1-propyl-1H-imidazol-3-ium), was prepared from the elements in the ionic liquid [PMIM]CF3SO3. The structure consists of ordered anions and one ordered PMIM cation. The disordered PMIM cation is found in two orientations that refine to occupancies of roughly 0.80 and 0.20. The isolation of the title compound indicates that well behaved crystals can be obtained from direct reaction of the elements in ionic liquids with propyl chains that might otherwise be considered too prone to poor crystallization. See: Dalecky, Juillerat & Cody [IUCrData (2020). 5, x200312].

inorganic compounds


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The crystal structure of (NH4)2V3O8 has been redetermined using data collected at 0.61 Å resolution, showing that the ammonium cation is disordered by rotation around a non-crystallographic axis.

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An aluminium-deficient γ-brass phase, Al7.85Cr5.16, was synthesized by high-pressure sinter­ing and its crystal structure determined.

metal-organic compounds


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In the crystal structure of the title compound two independent binuclear copper(II) complexes are present, each with site symmetry \overline{1} and with the CuII atoms in a square-pyramidal coordination environment.

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The title hepta­nuclear alkoxido(oxido)vanadium(V) oxide cluster complex, [V7(C10H19O)O17(C18H24N2)3]·CH3CN, has a V7O18N6 core with approximately Cs symmetry, which is composed of two VO4 tetra­hedra, two VO6 octa­hedra and three VO4N2 octa­hedra.

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The reaction of the pyrazine­thio­phane ligand 3,4,8,10,11,13-hexa­hydro-1H,6H-bis­([1,4]di­thio­cino)[6,7-b:6′,7′-e]pyrazine with CuI led to the formation of a two-dimensional copper(I) coordination polymer with CuI in a trigonal–pyramidal coordination environment defined by two S and two I atoms.

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The title salt, [PMIM]2[Ni(P2S8)2] (PMIM = 3-methyl-1-propyl-1H-imidazol-3-ium), was prepared from the elements in the ionic liquid [PMIM]CF3SO3. The structure consists of ordered anions and one ordered PMIM cation. The disordered PMIM cation is found in two orientations that refine to occupancies of roughly 0.80 and 0.20. The isolation of the title compound indicates that well behaved crystals can be obtained from direct reaction of the elements in ionic liquids with propyl chains that might otherwise be considered too prone to poor crystallization.

organic compounds


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In the crystal of the title compound, the mol­ecules are linked into [010] chains by C—H⋯O inter­actions.

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The title compound exhibits gauchetranstrans O—C—C—O conformations. The conformational configuration is driven by the formation of an extended hydrogen-bonding network among the terminal alcohol groups of each mol­ecule.

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The solid-state structure of the synthetic psychedelic 5-meth­oxy-N,N-di­allyl­tryptamine (5-MeO-DMT) is reported in its freebase form.

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In the title piperidine derivative, the mol­ecules are linked by C—H⋯π inter­actions into dimers related by twofold symmetry.

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In the title compound, one of the pendant methyl groups lies close to the fused-ring plane and the other is significantly displaced.

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The title mol­ecule is disposed about a centre of inversion and the conformation about the imine bond is E. The terminal benzene ring is approximately perpendicular to the central 1,4-di­aza­butadiene mean plane, forming a dihedral angle of 81.2 (3)°.
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