Twinned α-LiRb₂(CF₃SO₃)₃

The structure of twinned α-LiRb₂(CF₃SO₃)₃ consists of channel-like patterns built up of lipophilic CF₃ groups pointing towards each other, with the polar interstices occupied by cations.

Lithium and sodium yttrium ortho­silicate oxy­apatite, LiY₉(SiO₄)₆O₂ and NaY₉(SiO₄)₆O₂, at both 100 K and near room temperature

The structures of LiY₉(SiO₄)₆O₂ and NaY₉(SiO₄)₆O₂ have been determined from single-crystal X-ray diffraction data collected near room temperature and at 100 K. The structures are very similar to one another and to that of fluorine apatite.

Partial Sn-atom ordering in Sm₃Ga_0.80–2.48Sn_4.20–2.52

The title compound crystallizes with a partially ordered Pu₃Pd₅-type structure in space group Cmcm. The 8f and 4c positions are statistically occupied by Ga and Sn atoms, while the 8g position is occupied overwhelmingly by Sn atoms.

A ferroelectric barium titanate, BaTi₂O₅

The crystal structure of a barium titanate that had been reported previously in the centrosymmetric space group C2/m was found to be non-centrosymmetric, with space group C2. The present results are in accordance with the recently observed ferroelectricity of this compound.

Lanthanum indium oxide from X-ray powder diffraction

LaInO₃, a promising ion conductor for a holistic solid oxide fuel cell, was synthesized by a solid-state reaction method. The structure was refined by the Rietveld method using X-ray powder diffraction data. The structure of LaInO₃ is distorted by the in-phase and antiphase tilting of oxy­gen octahedra in the a⁺b⁻b⁻ system of the InO₆ polyhedra.

Vanadate garnet, Ca₂NaMg₂V₃O₁₂

The structure of the vanadate garnet Ca₂NaMg₂V₃O₁₂ is characterized by (Ca,Na)O₈ dodecahedra and MgO₆ octahedra with unusually long shared edges.

Magnesium diiodide, MgI₂

A single-crystal X-ray study has confirmed that MgI₂ is isostructural with CdI₂.

Superstructure of α-phase potassium nitrate

An acentric 2a₀ × 2b₀ × c₀ superstructure of α-potassium nitrate has been detected with a CCD area detector.

(η⁶-2-Bromo-1,1′-bi­phenyl)tri­carbonylchromium

Two bis­muth oxalate hydrates and revision of their chemical formulae

The crystal structures of the two bismuth(III) oxalate hydrates [Bi₂(C₂O₄)₃(H₂O)₄]·4H₂O and [Bi₂(C₂O₄)₃(H₂O)₄]·2H₂O are both based on three-dimensional networks of nine-coordinated Bi atoms, connected by tetradentate oxalate groups. The ligand and `free' water mol­ecules are located in channels and voids.

Group 2 metal salts of pyromellitic acid: [Mg(H₂O)₆](C₁₀H₄O₈) and [Ba(C₁₀H₄O₈)(H₂O)₅]

catena-Poly[potassium [copper(II)-μ-iso­thio­cyanato-μ-N-salicyl­idene-β-alaninato(2–)]]

The effects of substitution on tetra­kis­(substituted imidazole)­copper(II) tri­fluoro­methane­sulfonates

trans-Di­aquabis(1H-imidazole-4,5-di­carboxyl­ate-κ²N³,O⁴)­manganese(II)

Di-μ-cyanato-bis­[(cyanato-κN)(tetramethylethylenedi­amine-κ²N,N′)copper(II)] and catena-poly[[μ₃-cyanato-κ³O:N:N-bis­[(cyanato-κN)(1,3-diamino­propane-κ²N,N′)copper(II)]]-μ₃-cyanato-κ³N:N:O]

Bis­(di-2-pyridyl­phosphinato-κ³N,O,N′)copper(II) di­chloro­methane disolvate

Isomorphous di­chloro- and di­bromo(2-methyl-2-phenyl­propyl)­phenylstannane, both displaying the same intramolecular π–π interaction at 120 K

μ-3,4′-Bi-1,2,4-triazole-di-μ-chloro-cuivre(II) monohydraté

trans-Cyano(6-methyl-1,4,8,11-tetraaza­cyclo­tetradecan-6-amine)cobalt(III) bis­(perchlorate) hydrate and trans-hydroxo(6-methyl-1,4,8,11-tetra­aza­cyclo­tetradecan-6-amine)cobalt(III) bis­(perchlorate)

Di-μ-benzoato-bis­[di­carbonyl­(pyri­dine)­ruthenium(I)] (new polymorph) and di-μ-tri­fluoro­acetato-bis­[di­carbonyl­(pyridine)­ruthenium(I)]

{[Ca₅(C₈H₄O₄)₅(H₂O)₉]·8H₂O}_n: the first crystallographically characterized non-transition metal salt of isophthalic acid

Alendronate zwitterions bind to calcium cations arranged in columns

catena-Poly­[[trans-bis­(ethane-1,2-di­amine-κ²N,N′)copper(II)]-μ-di­thion­ato-κ²O:O′] and trans-di­aqua­bis­(propane-1,3-di­amine-κ²N,N′)copper(II) di­thionate

A magnesium–bis­(di­aryldiketiminate) complex

Intermolecular interactions in N-(ferrocenyl­methyl)­anthracene-9-carbox­amide

Bis­[(2,2-di­methyl-1,3-propane­diamine-κ²N,N′)(piperidine-2-car­boxylato-κ²N,O)­platinum(II)] sulfate

[N,N′-Bis(3-amino­propyl)ethylenedi­amine-κ⁴N,N′,N′′,N′′′](tri­thiocyanurato-κ²N,S)zinc(II) ethanol solvate

Two new soluble iron–oxo complexes: [Fe₂(μ-O)(μ-O₂CCF₃)₂(O₂CCF₃)₂(C₁₀H₈N₂)₂] and [Fe₄(μ₃-O)₂(μ-O₂CCF₃)₆(O₂CCF₃)₂(C₁₀H₈N₂)₂]·CF₃CO₂H

Di­cyano{[(1S)-(1-phenyl­ethyl)­aziridin-2-yl]­methano­lato-κ²N,O}boron

Head-to-head dimers in the zwitterion of 1-hy­droxy-1-phosphono-3-(1-piperidino)propyl­idene-1-phosphonate (PHPBP)

Redetermination of sperminium tetrachloride

2,2′-Methyl­enebis(3-hy­droxy-5,5-di­methyl­cyclo­hex-2-en-1-one)

2-Amino­benzimidazolium O-ethyl malonate: eight independent N—H⋯O hydrogen bonds generate sheets

Self-recognition in a flexible bis­(pyrrole) Schiff base derivative: formation of a one-dimensional hydrogen-bonded polymer

Two biologically active thio­phene-3-carbox­amide derivatives

(±)-cis-2-Methyl-4-oxo­cyclo­hexane­carboxylic acid: catemeric hydrogen bonding in a δ-keto acid derived from Hagemann's ester

Uncovering stereochemical relations in a compound with a stereogenic N—O axis: methyl 2-(4-methyl-2-thioxo-2,3-di­hydro­thia­zol-3-yl­oxy)­propanoate

2-Chloro-4,6-di­meth­oxy-1,3,5-triazine

Derivatives of 2,4-di­meth­oxy-1,3,5-triazine

Two derivatives of 5-amino­tetrazole: 5-amino-1-phenyl­tetrazole and 5-amino-1-(1-naphthyl)­tetrazole

Betaino­hydroxamic acid chloride

2-Amino-6-(1-imidazolyl­methyl)-4-(3,5,5-tri­methyl-2-pyrazolin-1-yl)-1,3,5-triazine and 2-amino-6-(1-benzimidazolyl­methyl)-4-(3,5,5-tri­methyl-2-pyrazolin-1-yl)-1,3,5-triazine hemihydrate

Bis(2,5-di­meth­oxy-4-methylphenyl)methane and bis­(2,5-di­meth­oxy-3,4,6-tri­methylphenyl)methane

3-(4-Chloro­benzoyl)-7-(N,N-di­methyl­amino)-1-phenyl­indolizine and 3-(2,4-di­chloro­benzoyl)-7-(N,N-di­methyl­amino)-1-phenyl­indolizine

4,4′-Sulfonyl­bis­[N-(4-nitro­phenyl­methyl­ene)­benzen­amine]: whole-mol­ecule disorder

Anilinium mono­hydrogen DL-malate

ap-9-(o-Methyl­phenyl)-9-fluorenol, a structure exhibiting several aryl-H⋯π(arene) intermolecular interactions

2-Phenyl­malonpiperadide and 2-phenyl­malonmorpholide

Acet­amidoxime

A comparison of the ring conformational properties of two derivatives prepared from the same diene diacetate precursor

Two aza­steroidal [3,2-c]­pyrazole derivatives: 2′-(p-fluoro­phenyl)-4-aza­pyrazolo­[4′,3′:2,3]-5α-androstan-17β-yl acetate and 2′-(p-fluoro­phenyl)-4-aza­pyrazolo­[4′,3′:2,3]-5α-androstan-17β-ol

Dinicotinamidium squarate

Water polymers in L-alanyl-L-me­thionine hemihydrate