n-Octanol

The structure of n-octanol, C₈H₁₇OH, at 150 K consists of infinite hydrogen-bonded chains forming a ribbon parallel to the b axis.

2,2':5,6-Di-O-iso­propyl­idene-2-C-hydro­xymethyl-D-talono-1,4-lactone

A second crystalline diacetonide, the title compound, C₁₃H₂₀O₇, has been isolated from the sequential treatment of D-tagatose with aqueous sodium cyanide, followed by acetone in the presence of acid. Structural ambiguities with regard to the size of both the lactone and ketal rings are resolved by the X-ray crystallographic analysis.

n-Butyl acetate

The title compound, C₆H₁₂O₂, was prepared by a modified zone-refinement method at 150 K and consists of discrete molecules in van der Waals contact.

Acetato­[1-(oxazolin-2-yl­methyl-κN)-1H-indolyl-κC²](tri­phenyl­phosphine)­palladium(II) di­chloro­methane solvate

The title compound, [Pd(C₂H₃O₂)(C₁₈H₁₅P)(C₁₂H₁₁N₂O)]·CH₂Cl₂, crystallizes readily from a mixture of di­chloro­methane and light petroleum. The structure is one of few examples of palladacycles that incorporate the N-substituent in five-membered-ring heterocycles [Nonoyama & Nakajima (1998). Polyhedron, 18, 533–543].

Chloro{1-[(di­methyl­amino)­methyl-κN]-1H-indolyl-κC²}(tri­phenyl­phosphine-κP)­palladium(II) di­chloro­methane solvate

The title compound, [Pd(C₁₁H₁₃N₂)Cl(C₁₈H₁₅P)]·CH₂Cl₂, crystallizes readily from a mixture of di­chloro­methane and light petroleum. The structure is one of few examples of palladacycles that incorporate the N-substituent in five-membered ring heterocycles [Nonoyama & Nakajima (1998). Polyhedron 18, 533–543.].

Ethyl propionate at 185 K

The title compound, C₅H₁₀O₂, was prepared by a modified zone-refining technique, and has a layered structure with a high degree of disorder within the layers.

Dichloro­tris(triphenyl­phosphine)ruthenium(II) dichloro­methane hemisolvate

A third modification of [RuCl₂(PPh₃)₃] has been characterized, this time as the title compound, [RuCl₂(C₁₈H₁₅P)₃]·0.5CH₂Cl₂. As seen for the previous modifications, the complex has a distorted square-pyramidal geometry with an ortho-H atom `blocking' the site trans to the apical PPh₃ ligand. There is no evidence for a strong C—H...Ru inter­action nor any specific directional force in the solid state.

1-Amino-N,N-di­benzyl-1-deoxy-α-D-tagato­pyran­ose methanol solvate

The title tagatos­amine, C₂₀H₂₅NO₅.CH₄O, formed in the Amadori rearrangement of D-galactose with di­benzyl­amine, is shown to crystallize as the α-anomer, in contrast to the β-anomer formed in the Amadori reaction of D-glucose with di­benzyl­amine.

2-Acet­amido-N-benzyl-1,4-imino-1,2,4-tri­deoxy-L-arabinitol 0.33-hydrate

The solid-state conformation of the title compound, C₁₄H₂₀N₂O₃·0.33H₂O, a potent hexosaminidase inhibitor, prepared from D-lyxonolactone, has been established by X-ray crystallography. The asymmetric unit contains three mol­ecules, which have very similar conformations, together with a mol­ecule of water.

Meth­yl acetoacetate at 150 K

The crystal structure of meth­yl acetoacetate, C₅H₈O₃, at 150 K contains discrete mol­ecules.

Cyclo­hexa­none at 150 K

The structure of cyclo­hexa­none, C₆H₁₀O, at 150 K is that of discrete mol­ecules, with no strong intermolecular interactions.

Benzyl N-[1-(furan-2-yl)ethyl­idene]­hydrazine­carbodithio­ate

The title compound, C₁₄H₁₂N₂S₂O, contains a dithio­carbazate group. The phenyl ring is disordered and perpendicular [dihedral angle of 48.0 (3)°] to the rest of the mol­ecule, which is planar.

2-[(Dimethyl­amino)(phen­yl)meth­yl]benzoic acid

The title compound {systematic name: [(2-carboxyl­atophen­yl)­(phen­yl)meth­yl]-N,N-dimethyl­ammonium}, C₁₆H₁₇NO₂, crystallizes as a hydrogen-bonded zwitterion.

N-(3-Pyridylmethyl­ene)-N′-[5-(3-pyridylmethyl­sulfan­yl)-1,3,4-thia­diazol-2-yl]hydrazine

In the crystal structure of the title compound, C₁₄H₁₂N₆S₂, the mol­ecules are linked into centrosymmetric dimers through N—H...N hydrogen inter­actions, forming two-dimensional layers parallel to (010).