Polymeric potassium di­aqua­hexa-μ-cyano-holmium(III)­ruthenium(II) dihydrate

The coordination about the central holmium(III) ion is eightfold in a square-antiprismatic arrangement, while the ruthenium(II) ion is octahedrally coordinated. Channels permeating the crystal lattice contain the potassium cations and two zeolitic water mol­ecules.

Redetermination of hydro­nium perchlorate at 193 and 293 K

A sample of hydro­nium perchlorate, H₃O⁺·ClO₄⁻, crystallized from ethanol at ambient temperature, was found to be orthorhombic (space group Pnma) at both 193 and 293 K, with no phase transition observed in this temperature range. The hydro­nium and perchlorate ions lie across a mirror plane but it is not possible to define at either temperature a simple description of the H-atom positions due to the three-dimensional tumbling of the hydro­nium cation.

The correct space group of NaPF₆·H₂O

The correct space group of crystalline NaPF₆·H₂O has been determined to be Pnna, rather than the group Imma that was originally reported in 1956. The Na⁺ and PF₆⁻ ions and the water mol­ecules form a three-dimensional network in the solid state.

The synthesis of phospho­rus heterocycles from tetra-tert-butyl­tetraphosphacubane

The trans influence in mer-tri­chloro­nitridobis­(tri­phenyl­arsine)­ruthenium(VI)

A head-to-head isomer of di-μ-pivalamidato-κ⁴N,O-bis­[(1,10-phenanthroline-κ²N,N′)­platinum(II)] dinitrate dihydrate

The infinite double-stranded chain polymer catena-poly­[[bis­(dicyan­amido)­zinc(II)]-di-μ-1,2-bis­(1,2,4-triazol-1-yl)­ethane-κ⁴N⁴:N^4′]

trans-Bis(3,5-di­aza-1-azonia-7-phosphaadamantane-κP)­bis­(thiocyanato-κS)­palladium(II) bis­(thio­cyanate)

The twinned structure of ferricenyl­tri­fluoro­borate

Λ-{1,4,7,10-Tetra­kis­[(S)-2-hy­droxy­propyl-κO]-1,4,7,10-tetra­aza­cyclo­do­decane-κ⁴N}cadmium(II) bis­(2,4,6-tri­nitro­phenolate) aceto­nitrile solvate

cis-Bis­(aceto­nitrile)­tetra­chloro­tin(IV) aceto­nitrile solvate, cis-tetra­chloro­bis­(propiono­nitrile)­tin(IV) propiononitrile solvate, cis-tetra­chlorobis­(isobutyro­nitrile)­tin(IV), cis-tetra­chlorobis­(cyclo­hexane­carbo­nitrile)­tin(IV) and cis-tetra­chlorobis(o-toluo­nitrile)­tin(IV), all determined at ca 150 K

Hydrogen bonding in calcium–tri­fluoro­methane­sulfonate–1,3-di-4-pyridyl­urea–methanol (1/2/2/4)

A five-coordinate ruthenium(II)–porphyrin–carbene complex: [bis­(3-tri­fluoro­methylphenyl)methylene-κC](5,10,15,20-tetra-p-tolylporphyrinato-κ⁴N)ruthenium(II)

Polymeric hexa-μ-nicotinato-tricadmium(II) tetrahydrate

A one-dimensional zigzag coordination polymer: catena-poly­[[di­aqua­pyridine­nickel(II)]-μ-pyridine-2,3-di­carboxyl­ato-κ³N,O²:O³]

A novel copper(II) complex with 1,10-phenanthroline and ciprofloxacin

A chloride ion contained in a cobalt `claw': [Co₃(DADIT)₃]Cl(PF₆)₂

Inter- and intramolecular C—H⋯π interactions in morphine bis­(1-naph­tho­ate)

cyclo(-Cha–Oxz–D-Val–Thz–Ile–Oxz–D-Val–Thz-) N,N-di­methyl­acetamide dihydrate: a square form of cyclo­hexyl­alanine-incorporated ascidiacycl­amide having the strongest cytotoxicity

1-(4-Methyl­amino-1,2,5-thia­diazole-3-carbonyl)­thio­semicarbazide

4,6-Bis­(methyl­sulfanyl)-1-(4-phen­oxy­butyl)-1H-pyrazolo­[3,4-d]­pyrimidine

5,8-Di­meth­oxy-2,3-bis­(2-pyridyl)­quinoxaline

2-Nitr­imino-1-nitro­imidazolidine

2-Amino­thia­zole and 2-amino­thiazolinone derivatives

2-(3-Pyridyl)-1,3,8-tri­aza­naphthalene, a product of the catalytic transformation of 3-cyano­pyridine

4-Iodo­anilinium 3-nitro­phthalate(1–): tripartite sheets built from O—H⋯O and N—H⋯O hydrogen bonds

4-Bromo-2-(hy­droxy­methyl)­phenol: helical hydrogen bonding, R(12) rings and C—H⋯π interactions

1-[2-(4-Nitro­phen­oxy)­acetyl]­pyrroli­din-2-one: an antiamnesic agent

2-(2,1-Benzoxazol-3-yl)-3,5-di­meth­oxy­phenol and 3-phenyl-2,1-benzoxazole

A mixed crystal of imperatorin and phellopterin, with C—H⋯O, C—H⋯π and π–π interactions

A stacked pyrazolo­[3,4-d]­pyrimidine-based flexible mol­ecule: the effect on stacking of a bulky iso­propyl group in comparison with a methyl/ethyl group

3,7-Di­bromohinokitiol: a redetermination

N-(4-Nitro­benzyl­idene)-N′-phenyl­hydrazine

A new clerodane diterpene with antifeedant activity from Teucrium tomentosum

Supramolecular structures of 2-chloro-5-methyl­phenol and 4-chloro-3-methyl­phenol (chlorocresol)

4-Aminopyridinium hydrogen maleate