The ferriannite KFe(Al_0.26FeSi₃)­O₁₀(OH)₂ at 100 and 270 K

The structure of the synthetic trioctahedral mica potassium triiron(II) aluminasilaferrate(III) decaoxide di­hydroxide, KFe^II₃(Al_0.26Fe^III_0.76Si₃)O₁₀(OH)₂, has been determined using single-crystal X-ray diffraction data measured at 270 and 100 K.

Tetragonal CeNbO₄ at 1073 K in air and in vacuo

Powder neutron diffraction data recorded both in situ in air and in vacuo at 1073 K show that the high-temperature tetragonal polymorph of CeNbO₄ is fully stoichiometric.

Dirubidium aqua­penta­chloro­chromate(III) and dicaesium aqua­penta­chloro­chromate(III)

The two novel title compounds, Rb₂[CrCl₅(H₂O)] and Cs₂[CrCl₅(H₂O)], are structurally distinct, with pseudo-cubic and pseudo-octahedral coordinations, respectively, of alkali ions around the chromate complexes.

Mg₂Na₂V₁₀O₂₈·20H₂O and Mg₃V₁₀O₂₈·28H₂O

The structures of Mg₂Na₂V₁₀O₂₈·20H₂O, (I), and Mg₃V₁₀O₂₈·28H₂O, (II), contain octahedral [Mg(H₂O)₆]²⁺ cations. The Na⁺ cations in (I) link the decavanadate anions into a three-dimensional network.

Hydrates of tin tetrachloride

The crystal structures of the tri- and tetrahydrate of tin tetrachloride are reported and discussed. The trihydrate contains chains of the tin species linked by a single hydrogen-bonded water mol­ecule, whilst the tetrahydrate has a three-dimensional network. In addition, there are O—H⋯Cl interactions present.

Potassium gadolinium polyphosphate, KGd(PO₃)₄

A structural study shows that by changing the cooling speed during the synthesis of the title compound, the structure changes from a cyclic structure to one containing chains.

3-(4-Cyano­phenyl)­pentane-2,4-dione and its copper(II) complex

(2,2′-Bi­pyridine-κ²N,N′)(2,3-naph­tha­lene­diolato-κ²O,O′)­palladium(II) and (2,2′-bi­quinoline-κ²N,N′)(2,3-naph­thal­ene­diolato-κ²O,O′)­palladium(II)

Poly­[[(pyridazine-κN)copper(I)]-μ₃-thio­cyanato-κ³N:S:S]

A two-dimensional network of R(16) and R(8) rings in trans-bis­(4-amino­pyridine-κN¹)­bis­(benzoato-κ²O,O′)­copper(II) benzene 0.75-solvate

Poly­[[aqua­neodymium(III)]-μ₃-decane-1,10-di­carboxyl­ato-μ₃-9-carb­oxy­nonane­carboxyl­ato]

Bis­(acetone-κO)­bis­(N,N′-di­methyl­ethyl­enedi­amine-κ²N,N′)copper(II) diperchlorate

Isoamyl­cobalamin–acetone–water (1/0.385/12.650)

catena-Poly­[[di­chlorozinc(II)]-μ-1,3-di-4-pyridyl­propane-κ²N:N′]

Bis(μ-4-chloro­benzoato-κ²O:O)bis­[(2-amino­pyridine-κN)silver(I)]

μ-Ethane-1,2-diyl­bis­(di­phenyl­phos­phine oxide)-κ²O:O′-bis­[di­benzyl­dichloro­tin(IV)]: a centrosymmetric complex containing trigonal-bipyram­idal tin(IV), linked into chains of rings by C—H⋯π(arene) hydrogen bonds

Di­chloro­[(6R,7S,8S,14S)-(–)-sparteine-κ²N,N′]­nickel(II)

{Tris[4-(1H-pyrazol-3-yl)-3-azabut-3-enyl]­amine}­iron(II) diperchlorate monohydrate

catena-Poly­[[[1,8-bis­(2-hy­droxy­ethyl)-1,3,6,8,10,13-hexa­aza­cyclo­tetra­decane]copper(II)]-μ-cyano-[tri­cyano­nitro­soiron(III)]-μ-cyano]

catena-Poly­[[[aqua­bis­(1H-benz­imidazole-κN³)­cadmium(II)]-μ-phthalato-κ³O,O′:O′′] hemihydrate]

Polymeric aqua­(nitrato-κ²O,O′)(1,10-phenanthroline-κ²N,N′)(2,3-pyrazine­dicarboxyl­ato-κ²N,O)­europium(III) monohydrate

Azido­[1,1′-bis­(di­phenyl­phosphino)­ferrocene](penta­methyl­cyclo­penta­dienyl)­rhodium(III) hexa­fluoro­phosphate

The infinite one-dimensional chain polymer catena-poly­[[bis­[μ-1,1′-ethane-1,2-diyl­bis­(1,2,4-triazole)-κ²N⁴:N^4′]­bis­[azido­zinc(II)]]-di-μ-azido-κ⁴N¹:N¹]

Tetra­aqua­bis­[5-(4-pyridyl N-oxide)­tetrazolato-κN²]­cadmium: the intermediate in the synthesis of a tetrazole from a nitrile and an azide

(P,M)-1,2,3,9,10,11-Hexa­meth­oxy-5,7-di­hydro­dibenz­[c,e]­oxepine and (P,M)-1,11-di­methyl-5,5,7,7-tetra­phenyl-5,7-di­hydro­dibenz­[c,e]­oxepine

The imide tautomer of sulfasalazine

N—H⋯N hydrogen bonding in 4,6-di­phenyl-2-pyrimidinyl­amine isolated from the plant Justicia secunda (Acanthaceae)

3-[4-(4-Fluoro­phenyl)­piperazin-1-yl­methyl]-5-methyl-1,3-benzoxazol-2(3H)-one and 3-[4-(2-fluoro­phenyl)­piperazin-1-yl­methyl]-5-methyl-1,3-benzoxazol-2(3H)-one

N-{2-[(3,5-Di-tert-butyl-4-oxo­cyclo­hexa-2,5-dien-1-yl­idene)­amino]­phenyl}-N-(5,7-di­nitro­quinolin-8-yl)-1-phenyl­methanesulfon­amide: the nature of intramolecular shortened contacts

Isochroman derivatives and their tendency to crystallize in chiral space groups

(±)-7-Oxo-1,2,3,4,4a,5,6,7-octa­hydro­naphthalene-1-acetic acid: catemeric hydrogen bonding and diastereomeric disorder in a bicyclic unsaturated ∊-keto acid

(E)-1-(2-Hydroxy­phenyl)­propan-2-one O-methyl­oxime forms hydrogen-bonded chains of edge-fused R(16) and R(24) rings

Layer architecture in 4-nitro­phenyl and 4-chloro­phenyl 3-nitro­benzene­sulfonate at 100 K

2-(Phenyl­amino­methyl­idene)­cyclo­hexane-1,3-dione

Cyano–cyano and chloro–cyano interactions in two imidazole derivatives

Tris(2-pyridyl)­phosphine oxide: how C—H⋯O and C—H⋯N interactions can affect crystal packing efficiency

2,4-Di­meth­oxy­benzoic acid and 2,5-di­meth­oxy­benzoic acid

2-[Benzoyl­(hy­droxy­imino)­methyl­amino]­benzoic acid

Molecular conformation and supramolecular aggregation in two fused pyrazoles: π-stacked R(6) dimers in 2,8,8-tri­methyl-6,7,8,9-tetra­hydro­pyrazolo­[2,3-a]­quinazolin-6-one, and sheets of alternating R(12) and R(48) rings in 3-tert-butyl-4′,4′-di­methyl-1-phenyl-4,5,6,7-tetra­hydro-1H-pyrazolo­[3,4-b]­pyridine-5-spiro-1′-cyclo­hexane-2′,6′-dione

(Cyclo­hexyl­idene­amino)­oxy­acetic acid and [chloro­(phenyl)­methyl­ene­amino]­oxy­acetic acid: hydrogen-bonded R(8) dimers and aromatic π–π stacking interactions

2-Amino-3-hy­droxy-4-phenyl­thia­zol­ium chloride: π-stacked hydrogen-bonded chains of edge-fused R(11) rings

3,3,10,10-Tetra­methyl-1,2-di­thia-5,8-di­aza­cyclo­deca-4,8-diene

1,14-Dioxa-5,10-di­aza-2,3:12,13-dibenzo­cyclo­octadeca-2,12-diene monohydrate

Enoxacin trihydrate

Hydrogen-bonded supramolecular motifs in 4,4′-bipyridinium 8-hy­droxy-7-iodo­quinoline-5-sulfonate dihydrate

N,N,N′,N′-Tetra­methyl­ethyl­ene­diammonium–succinate–succinic acid (1/1/1)

2-Nitro­phen­oxy­acetanilide: a chain of rings generated by C—H⋯O hydrogen bonds

1-Phenyl-5-(piperidino­methyl)-1H-tetrazole

Cocrystallization of melaminium levulinate monohydrate

N-Methyl­pyridinium 3-cyano-4-(di­cyano­methyl­ene)-5-oxo-4,5-di­hydro-1H-pyrrol-2-olate

3β,6β-Di­hydroxy­olean-12-en-27-oic acid: a cytotoxic and apoptosis-inducing oleanane triterpenoid from the rhizome of Astilbe chinensis