The structural phase transition in SrV₆O₁₁

The structural transition in SrV₆O₁₁ was studied in detail by single-crystal X-ray diffraction and specific heat measurements. The specific heat showed three anomalies at 43.8, 77.7 and 322 K. The diffraction study established that SrV₆O₁₁ crystallizes in P6₃mc at 353 K, but in P6₃/mmc at room temperature. The present study establishes that the P6₃/mmc to P6₃mc transition takes place at 322 K, coinciding with the magnetic transition.

Bis[S-benzyl-3-(4-n-octyloxybenzyl­idene)di­thio­carbazato-κ²N³,S′]palladium(II)

2,6-Bis(1-benzyl-1H-1,2,3-triazol-4-yl)pyridine and its octa­hedral copper complex

Poly[[tetra­aquadi-μ₄-glutarato-μ₂-tereph­thalato-di­neodymium(III)] hepta­deca­hydrate]

catena-Poly[copper(II)-di-μ-acetyl­acetonato-copper(II)-bis­(μ-4-hy­droxy-3-methoxybenzaldehyde picoloyl­hydrazonato)] and (acetyl­acetonato)(4-meth­oxy­benzaldehyde picoloyl­hydrazonato)copper(II)

Poly[[aqua-μ₃-2,2-di­methyl­malonato-copper(II)] monohydrate] and poly[aqua-μ₃-2,2-di­methyl­malonato-copper(II)]

Poly[[(μ₂-bi­phenyl-2,4′-di­carboxyl­ato)[μ₂-1,4-bis­(imidazol-1-yl­methyl)­benzene]cadmium(II)] 0.15-hydrate]

A three-dimensional framework in 2,2′-biimidazolium bis­(2,2′-bi­imidazole-κ²N,N′)bis­(bi­phenyl-2,4′-di­carboxyl­ato-κO)manganese(II) hexa­hydrate

Inter­molecular C—F⋯H—C contacts in the mol­ecular packing of three isostructural N-(fluoro­phenyl)­manno­pyran­osyl­amines

N-(X-Methyl­phen­yl)-2-{(Z)-[(2,3,4-tri­methoxyphenyl)methyl­idene]amino}-4,5,6,7-tetra­hydro-1-benzo­thio­phene-3-carboxamide, where X = 2 and 3

Three-dimensional hydrogen-bonded structures in the guanidinium salts of the monocyclic dicarb­oxy­lic acids rac-trans-cyclo­hexane-1,2-dicarb­oxy­lic acid (2:1, anhydrous), isophthalic acid (1:1, monohydrate) and terephthalic acid (2:1, trihydrate)

Inter­action of thi­amine with anions in the triclinic form of thia­mine iodide: 3-[(4-amino-2-methyl­pyrimidin-5-yl)methyl]-5-(2-hy­droxy­ethyl)-4-methyl-1,3-thia­zol-3-ium iodide 1.25-hydrate

N-{N-[2-(3,5-Di­fluoro­phenyl)acetyl]-(S)-alanyl}-(S)-phenyl­glycine tert-butyl ester (DAPT): an inhibitor of γ-secretase, revealing fine electronic and hydrogen-bonding features

1-(2-Amino­phenyl)-3-(4-pyridyl)prop-2-en-1-one: a three-dimensional framework structure built from N—H⋯N, C—H⋯O and C—H⋯π(arene) hydrogen bonds

Polymorphism in 2-(4-hy­droxy-2,6-di­methyl­anilino)-5,6-di­hydro-4H-1,3-thia­zin-3-ium chloride

5-Formyl­salicylic acid and 5-(benzimidazolium-2-yl)salicylate

Four novel spiro­oxaza­camphorsultam derivatives

5,5′-Bis(hy­droxy­methyl)-3,3′-di­meth­oxy­biphenyl-2,2′-diol with a new three-dimensional 3-modal topology of synthons

Anhydrous 1:1 proton-transfer compounds of isonipecotamide with picric acid and 3,5-di­nitro­salicylic acid: 4-carbamoylpiperidinium 2,4,6-tri­nitro­phenolate and two polymorphs of 4-carbamoylpiperidinium 2-carb­oxy-4,6-di­nitro­phenolate

Hydrogen bonding in the anhydrous 1:1 proton-transfer compounds of isonipecotamide with nitro-substituted benzoic acids: the salts of the three isomeric mono­nitro­benzoic acids and of 3,5-di­nitro­benzoic acid

Hexa­kis­(adamantyl­tri­methyl­ammonium) cyclo­octa­silicate tetra­tetra­conta­hydrate

The m-phenyl­ene-bridged bis-oxazole 4,4′,5,5′-tetra­phenyl-2,2′-m-phenyl­enedi-1,3-oxazole and its bulkily substituted analogue 4,4′,5,5′-tetra­kis­(4-tert-butyl­phen­yl)-2,2′-m-phenyl­enedi-1,3-oxazole

2-{[(Do­decyl­sulfan­yl)carbono­thio­yl]sulfan­yl}-2-methyl­propanoic acid: a chain of edge-fused R₂²(8) and R₄⁴(20) rings built from O—H⋯O and C—H⋯O hydrogen bonds