Aqua­bis­[3,6-bis­(pyridin-2-yl)pyridazine-κ²N¹,N⁶]copper(II) bis­(tri­fluoro­methane­sulfonate)

In the title compound, the metal atom is in a pyramidal coordination geometry. Two tri­fluoro­methane­sulfonate ions are connected via hydrogen bonds to the coordinating water mol­ecule. The crystal structure features C—H⋯N, C—H⋯O and C—H⋯F inter­actions.

(Thio­cyanato-κS)tris­(tri­phenyl­phosphane-κP)silver(I)

Reaction of Ag^I thio­cyanate with 1-(4-nitro­phen­yl)thio­urea and tri­phenyl­phosphane leads to a mononuclear Ag(C₁₈H₁₅P)₃(SCN) complex. In the crystal, C—H⋯N hydrogen bonds linked mol­ecules into a two-dimensional network.

(10R,13R)-17-(6-Hy­droxy-5-methyl­heptan-2-yl)-10,13-di­methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetra­deca­hydro-1H-cyclo­penta­[a]phen­anthren-3-ol hemihydrate: a bioactive steroid isolated from the Indian herb Artemisia reticulata

The title tetra­cyclic steroidal compound was isolated from the Indian herb A. reticulata. It crystallizes with two independent mol­ecules in the asymmetric unit together with a single water mol­ecule that links the two mol­ecules via O—H⋯O hydrogen bonds.

2,2-Di­fluoro-3-(4-fluoro­phen­yl)-2H-benzo[e][1,3,2]oxaza­borinin-3-ium-2-uide

The title compound crystallizes in the non-centrosymmetric space group Cc. F atoms are involved in all of the short inter­molecular contacts of the crystal structure.

4-Meth­oxy­benzyl­ammonium nitrate

The title salt crystallizes with one independent cation and anion in the asymmetric unit. In the crystal, they are linked to one another by C—H⋯O, C—H⋯N, N—H⋯N, and N—H⋯O hydrogen bonds. Two C—H⋯π inter­actions also occur.

rac-2,3-Di­phenyl-2,3-di­hydro-4H-pyrido[3,2-e][1,3]thia­zin-4-one 1-oxide

The crystal structure of the S-oxide of 2,3-di­hydro-4H-pyrido[3,2-e]thia­zin-4-one, reported on herein, is extremely similar to that of S-oxide of 2,3-diphenyl-2,3-di­hydro-4H-1,3-benzo­thia­zin-4-one. The thia­zine rings have screw-boat conformations and the S-oxide O-atoms are pseudo-axial on the thia­zine ring.

Di­methyl (7-hy­droxy-4-methyl-2-oxo-2H-chromen-3-yl)phospho­nate

In the title compound,the coumarin ring system is essentially planar [dihedral angle between the rings = 1.32 (16)°]. In the crystal, C—H⋯O hydrogen bonds involving the disordered phospho­nate O atom as acceptor occur, which generate [100] chains.

N-Methyl-4-(4-nitro­phen­yl)-N-nitroso-1,3-thia­zol-2-amine

The title compound is almost planar (r.m.s. deviation for the non-H atoms = 0.050 Å). In the crystal, C—H⋯O and C—H⋯N hydrogen bonds link the mol­ecules into (10-2) layers.

Di­ethyl (1-benzyl-4-phenyl-3-tri­fluoro­methyl-1H-pyrrol-2-yl)phospho­nate

The crystal structure of the title compound features C—H⋯F and C—H⋯O hydrogen bonds.

2-[4-(Di­methyl­amino)­phen­yl]-3,3-di­fluoro-3H-naphtho­[1,2-e][1,3,2]oxaza­borinin-2-ium-3-uide

n the title compound, a twist about the N—C single bond is observed, making the cross conjugation not as efficient as in the case of a planar structure. The borone complex displays a tetra­hedral geometry. In the crystal, mol­ecules are conected by weak C—H⋯F hydrogen bonds.

Methyl (2R)-2-benzamido-2-{[(1R)-2-meth­oxy-2-oxo-1-phenyl­eth­yl]amino}­acetate

The mol­ecular and crystal structure of an amino­acetate derivative is reported. In the crystal, N—H⋯O hydrogen bonds link the mol­ecules, forming chains propagating along the a-axis direction.

(R*)-1-Benzyl-3-(2-hy­droxy­phen­yl)indoline-2-one

The title compound crystallizes with two independent mol­ecules (A and B) in the asymmetric unit. In the crystal, A mol­ecules are linked by pairs of O—H⋯O hydrogen bonds, forming A–A inversion dimers. The same situation is observed for the B mol­ecules, and both sets of inversion dimers enclose (14) ring motifs.

4-{(E)-[(2-Hy­droxy­naphthalen-1-yl)methyl­idene]amino}-1,5-di­methyl-2-phenyl-2,3-di­hydro-1H-pyrazol-3-one: a new polymorph (β-phase)

The title mol­ecule is a new polymorphic modification (β-phase). The structure features intra­molecular O—H⋯N and C—H⋯O and inter­molecular C—H⋯O hydrogen bonds, as well as offset π–π-stacking and C—H⋯π(ring) inter­actions.

rac-tert-But­yl{2-hy­droxy-2-[4-hy­droxy-3-(hy­droxy­meth­yl)phen­yl]eth­yl}aza­nium acrylate

A salt of salbutamol combined with acrylic acid was investigated. In the asymmetric unit, there is a protonated salbutamol cation and an acrylate anion. The acrylate anion is linked to the salbutamol cation via and O—H⋯O and an N—H⋯O hydrogen bond. The C=C moiety of the acrylate anion is disordered over two positions. The crystal structure is stabilized by N—H⋯O and O—H⋯O hydrogen-bonding inter­actions.

N′-[(1E)-1-(4-Chloro­phen­yl)ethyl­idene]-2-(2,3-di­methyl­anilino)benzohydrazide

In the crystal, mol­ecules are linked into a three-dimensional supra­molecular network by N—H⋯N, N—H⋯O, C—H⋯O hydrogen bonds and weak C—H⋯π inter­actions.

4-Methyl­benzyl­ammonium chloride hemihydrate

The title hydrated salt crystallized with one independent cation, an anion and half a water mol­ecule in the asymmetric unit. In the crystal, they are linked to one another with C—H⋯Cl, O—H⋯Cl, N—H⋯O and N—H⋯Cl hydrogen bonds. Furthermore, the crystal structure is stabilized by two weak C—H⋯π inter­actions.

1-Vinyl-4-imidazoline-2-thione

The mol­ecules of the title compound are arranged in layers parallel to the ab plane.

2-Amino-N-(furan-2-ylmeth­yl)-5,6-di­hydro-4H-cyclo­penta­[b]thio­phene-3-carboxamide

In the title compound, the carboximidamide unit is in an anti­clinal conformation with respect to the cyclo­hepta­thio­phene moiety and an intra­molecular N—H⋯O hydrogen bond closes an S(6) ring. In the crystal, N—H⋯O hydogen bonds link the mol­ecules into [010] C(6) chains and a very weak C—H⋯O inter­action is also observed.

Ammonium hydrogen bis­[(3-chloro-2-methyl­phen­oxy)acetate]

The ammonium hydrogen bis­[(3-chloro-2-methyl­phen­oxy)acetate] anion structure comprises two inversion-related components linked through a short symmetric carboxyl­ate O⋯H⋯O hydrogen bond in which the delocalized H atom lies on an inversion centre, with the ammonium cation disordered on a second inversion centre, giving an overall two-dimensional layered supra­molecular structure through N—H⋯O hydrogen bonds.

rac-1,1,1,6,6,6-Hexa­chloro­hex-3-yne-2,5-diol hemihydrate

Two hexa­chloro­hexynediols form centrosymmetric dimers connected via hydrogen bonds. These dimers are connected by water mol­ecules, resulting in two-dimensional layers parallel to the ab plane.

2-(Pyridin-2-yl)-1,8-naphthyridine

The conformation of the title mol­ecule is essentially planar and is stabilized by inter­molecular π–π contacts.