Tetrasodium Hexa­cyanoferrate(II) Decahydrate

Na₄[Fe(CN)₆].10H₂O crystallizes with the Fe atom lying on an inversion centre and the cyano groups in a regular octahedral arrangement around it. The water molecules form a hydrogen-bonded network and are arranged around the Na atoms.

Poly[[(2-fluorobenzoato)lead(II)-di-μ-thiourea-S:S] 2-Fluorobenzoate Monohydrate]

The repeating unit in this polymeric structure involves both thiourea ligands and one 2-fluorobenzoate ligand. The Pb atom is coordinated by four O atoms from three 2-fluorobenzoate ligands and four S atoms from four thiourea ligands. The Pb⋯Pb separation is 3.74 Å. The many hydrogen bonds include three-centered hydrogen bonds involving C-F bonded F atoms.

The Cholic Acid-Methanol-Water Inclusion Complex

The structure of the cholic acid–methanol–water inclusion complex is similar to that of cholic acid with methanol [Jones & Nassimbeni (1990). Acta Cryst. B46, 399-405]. The methanol guest is hydrogen bonded to the water molecule, which in turn participates in hydrogen bonds with three of the cholic acid O atoms.

Cedranediol: a New Auxiliary for Asymmetric Homologation

Cedranediol, (1R,2R,5S,7R,8R,9S)-2,6,6,8-tetramethyltricyclo-[5.3.1.0^1,5]undecane-8,9-diol, has been synthesized and characterized by X-ray diffraction analysis. It is a new chiral auxiliary for asymmetric homologation.

3,3-Di­chloro-4,4-di­methyl-2-oxo­cyclobut-1-yl Benzoate

The title compound, synthesized from the [2+2] cycloaddition of dichloroketene with 1-(benzoyloxy)methyl-3-methyl-2-butene, is shown to have the benzoyloxymethyl group at the 4 position. The cyclobutanone ring is puckered with a 28.6(2)° fold angle.

5-[Bis(tri­methylsilyl)amino]-2-meth­oxy-3-methyl-6-(tri­methylsilylamino)pyrimidin-4(3H)-one

The N-H group of the title molecule forms an intramolecular N-H⋯N hydrogen bond [N⋯N 2.836 (3) Å] and is shielded from possible intermolecular acceptors by the SiMe₃ groups.

6-Methyl-5-meth­oxy-3-(2,3,4,6-tetra-O-acetyl-β-D-gluco­pyranos-1-yl)-3H-1,2,3-triazolo[4,5-d]pyrimidin-7(6H)-one

The azapurine base has a slight butterfly shape with a 4.0 (3)^o interplanar angle between the five-membered triazolo and six-membered pyrimidine rings. The β-D-xylopyranosyl ring has a ⁴C₁ conformation.

(2S,3R,4R,5R)-2-Benzyl-N-(tert-butoxycarbonyl)-3-hy­droxy-4,5-di­methylpyrrolidine at 133 K

The pyrrolidine ring has a twist conformation with a pseudo-twofold axis passing through the N atom. The crystal packing is stabilized by an intermolecular hydrogen bond.

An Oxygen-Centred Tetranuclear Tantalum Cluster: Ta₄O(Te₂)₄TeI₄

Ta₄O(Te₂)₄TeI₄ contains Ta₄O clusters in the form of distorted oxygen-centred tetrahedra. Neighbouring pairs of Ta₄O clusters are linked by a μ₄ Te atom to form a one-dimensional chain structure.

A New One-Dimensional Compound: (TaTe₄)₆I₄(TaI₆)

Hexakis(tetratelluriotantalum) tetraiodide hexaiodotantalate has a [TaTe₄]_n chain structure with TaI₆⁻ complex anions and I⁻ anions between the chains. The [TaTe₄]_n chain contains rectangular antiprismatic TaTe₈ polyhedra, each Ta atom being coordinated by four Te₂ groups.

Carbon Dioxide at 1.0 GPa

The single crystal of CO₂ at 1.00 (5) GPa pressure exhibits Pa-3 symmetry with a = 5.4942 (2) Å and a C-O bond length of 1.168 (1) Å (corrected for thermal motion effects). The study demonstrates that an earlier claim of a new dry ice II phase at this pressure is unfounded.

A Niobium(V) Arsenate: Nb₉AsO₂₅

Nb₉AsO₂₅ is isostructural with Nb₉PO₂₅ (I4/m). The structure contains 3 × 3 ReO₃-type columns of distorted NbO₆ octahedra.

Li₃AsS₃

Lithium trithioarsenate, a new member of the M₃AX₃ group of compounds, contains AsS₃ pyramids in which all the S atoms are non-bridging. The Li atoms form LiS₄ tetrahedra and LiS₃₊₂ distorted trigonal bipyramids.

Trirubidium Tetra­thioniobate

The reaction of Rb₂S₃, NbO and S yields single crystals of Rb₃NbS₄ with the K₃VS₄ structure type. The structure is based on Rb⁺ cations and discrete tetrahedral NbS₄³⁻ anions.

Di­chlorobis(tri­phenylphosphine oxide)tin(II)

Platinum Complexes of 1,4,7-Tri­thia­cyclo­decane

A Tetranuclear Complex of Palladium(II) with Cysteine

Ferrocenium μ-Bromo-bis­[di­bromodi­methylstannate(IV)]

Bis[2,2'-iminodipyridinium(1+)] Bis[μ-4-hy­droxy-2,6-pyridinedi­carboxylato(3 –)]bis­[aquadi­butyltin(IV)] Dihydrate

Bis(3,5-di­methylpyrazole-N²)(2,2-di­methyl-N-salicylideneglycinato-O,N,O')copper(II)

Bis(μ-3,4-di­methylphosphol-1-yl)bis­(tetra­carbonylmanganese)

[Ph₄P]₂[Sb₂S₁₅]

The Improved Synthesis of [Cr(N)(salen)].CH₃NO₂

Methyl 5-De­oxy-5-C-[(iododi­phenylstannyl)methyl]-2,3-O-iso­propyl­idene-α-D-lyxo­furanoside

Hexa­kis­(urea-O)magnesium Dichlorate

Bis(μ-{N-[(methylthio)phenylmethylene]methanamine N-oxide}-O:O)bis­[bis­(1,1,1,5,5,5,-hexa­fluoro­pentane-2,4-dionato-O, 4-dionato-O,O')nickel(II)]

A Phenoxo-Bridged Digallium(III) Complex with a Ligand Derived from 2,6-Bis{[N,N'-bis­(carboxymethyl)amino]methyl}-4-methylphenol

Doxylaminium Tetra­chlorozincate(II) and Doxylaminium Tetra­chlorocobaltate(II)

Chloro[2,3-di­methylbutane-2,3-diolato(2 –)-O,O'][2,3-di­methylbutane-2,3-diolato(1 –)-O,O']oxotungsten(VI)

Layered Structure of Lithium Ethylene Glycolate, Li(OCH₂CH₂OH)

Di-μ-chloro-bis­[chlorodi­methyl(3-methyl-4-nitro­pyridine N-oxide-O)tin]

Mixed-halide Complex trans-Tetrahalobis(tri­phenylphosphine oxide)rhenium(IV)

Hexa­carbonyl-1κ³C,2κ³C-bis­{1,2(η⁵)-1-[2-(tri­methylsil­oxy)ethyl]cyclo­pentadienyl}dimolybdenum(Mo—Mo)

(Benzene­thiolato-S)(4-tert-butylpyridine-N)bis­(di­methylglyoximato-N,N')cobalt(III) and (4-tert-Butylpyridine-N)bis­(di­methylglyoximato-N,N')(4-methoxybenzene­thiolato-S)cobalt(III)

Di-μ-bromo-1:2κ⁴Br-bis­(quinoline)-1κN,2κN-bis­(tri­phenylphosphine)-1κP,2κP-dicopper(I)

Calodendrolide, a Degraded Limonoid from Calodendrum capense

9-Hy­droxy-9-(3-methylbut-3-en-1-ynyl)-9H-fluorene-1-carbo­nitrile

m-(p-Tolylsulfonyl­oxy)aniline

2-(4-Nitroanilino)-2-phenylethanol

9-(4-Di­methylamino­phenyl)-3,4,6,7,9,10-hexa­hydro-1,8(2H,5H)-acridinedione

1,3,4,8-Tetra­phenyl-7-oxa-1,2-di­aza­spiro[4.4]nona-2,8-dien-6-one

3-Phenylspiro[bi­cyclo[2.2.1]hept-5-ene-2,3'-chroman]-4'-one

The Twinned Crystal Structure of 3,4-Di­methylpyridine Hydrobromide at 157K

6-Chloro-4-(o-chloro­benzyl)-3-methylpyridazine at 173K

Phenanthrene-4-carboxylic Acid and 1,2-Di­hydro­phenanthrene-4-carboxylic Acid

8-Aminocaprylic Acid

DL-3-Aminoisobutyric Acid Monohydrate

N-(3,5-Di­chloro­phenyl)naphthaldimine

Racemic 1-Acetyl-5-phenyl-3-styryl-2-pyrazoline

7-Meth­oxy-2,2,4-tri­methyl-1,2-di­hydro­quinoline

A (±)-Cyclocytidine Analogue with a Low-anti Conformation around the Glycosyl Bond

Methyl Ester of the Bioactive Metabolite of Thromboxane A2 Receptor Antagonist ON-579

1-(1,3-Benzo­thiazol-2-yl)-3,3,3-tri­chloro-2-propanol

2,4,6-Tris(2-pyridyl)-1,3,5-triazine

Tetraundecylpenta­cyclo­octacosadodecaenoctol Tetra­ethanol Solvate, (I), and Tetraundecylpenta­cyclo­octacosadodeca­ene­dodecol Hydrate 2.5-Ethanol Solvate, (II)

4,6-Di­methyl-2-(4-phenylpiperazin-1-ylmethyl)iso­thiazolo[5,4-b]pyridin-3(2H)-one

Two Polymorphs of Bis(4-methoxyphenyl)tellurium(IV) Diiodide

3,4,4a,5,6,7,8,8a-Octa­hydro-8a-hy­droxy-2-quinolone and its 8a-Hydro­per­oxy Derivative

Structures of Chiral Hydroxylamines. VI. (3R,4S)-N-Benzyl-4,5-di­hydroxy-3-(hydroxyamino)-4,5-O-iso­propyl­idene-1-pentyne

Endogenous Alkaloids in Man. 28. (1R,3S)-1-Tri­chloro­methyl-1,2,3,4-tetra­hydro-β-carboline-3-carboxamide Methanol Solvate, a Potential Synthetic Precursor to Enantiomerically Pure TaClo

Calix[4]arene Piperidinium Salt

Tris(phenylseleno)methane

9-Methyl-8,11,12-trioxatri­cyclo[7.2.1.0^2,7]dodeca-2,4,6-trien-10-one

sp-(R)-9-(o-tert-Butylphenyl)-9-hy­droxy-N-[(S)-α-methylbenzyl]fluorene-2-carboxamide–Acetone: a Novel 1:1 Cavitate

Chiral Bisphosphanes. IV. Tetraiso­propyl 2,2'-[(1R,2R)-Cyclo­pentane-1,2-diyl]bis­[(4S,5S)-1,3,2-dioxa­phospholane-4,5-di­carboxylate]

2,5-Di­amino-3,6-di­chloro­pyrazine

1,5,7,11-Tetraoxa­spiro[5.5]undecane, 3,9-Di­methyl­idene-1,5,7,11-tetraoxa­spiro[5.5]undecane and 1,5-Dioxa-7,11-di­thia­spiro[5.5]undecane

5,17-Di­nitro-11,23-diphthalimido-25,26,27,28-tetrapropoxycalix[4]arene

Methylphenylammonium Hydrogen 2,6-Pyridinedi­carboxylate at 158K

4-Benzoyl-6-(4-methoxybenzyl­idene)-3-phenyl-2-oxa-3-azabi­cyclo[3.3.0]oct-7-ene

Monomeric pNBS: Bis(p-nitro­benzene­sulfonate) of 2,4-Hexadiyne

(5aR,9aR)-2,4-Di­methyl-5a,6,7,8,9,9a-hexa­hydro-1H-1,5-benzodiazepine

2-Phenyl-3-(5,6,7,7a-tetra­hydro-1H,3H-pyrrolo[1,2-c]oxazol-3-yl­idene)-1-propene-1,1-dicarbo­nitrile and 4-(4-Methoxyphenyl)-2,6-bis­(methylthio)pyridine-3-carbo­nitrile

N,N'-Methylenebis[(S)-5-phenyloxazolidine]

2'-[1-(4-Fluoro­phenyl)ethyl]isonicotino-κN-hydrazide–Cyanoborane

A New Bis(di­thioester): Methanediyl Bis(N,N-di­ethyldi­thiocarbamate), Derived from cis-Di­chlorobis(N,N-di­ethyldi­thiocarbamato-S,S')tin(IV)

Five 3,4-Di­hydro-2H,5H-pyrano[3,2-c][1]benzo­pyran-5-one Derivatives

3,4-Di­methyltetra­thia­fulvalene

Benzo­phenone Crown Ether Acetals with 14- and 17-Membered Rings