trans-Bis[2-(amino­meth­yl)pyridine-κ²N,N′]platinum(II)] bis­(hexa­fluorido­phosphate)

The crystal structure of the title salt is composed of alternating rows of bis­(2-(amino­meth­yl)pyridine-κ²N,N′)platinum(II) cations and hexa­fluorido­phosphate anions.

Bis[(4-chloro­phen­oxy)acetato-κO](ethyl­enedi­amine-κ²N,N′)zinc

The central Zn^II cation has a distorted tetra­gonal N₂O₂ coordination sphere defined by two monodentate p-chloro­phen­oxy­acetate ligands and a chelating ethyl­enedi­amine ligand.

cis-Bromido­bis­(ethyl­ene-1,2-di­amine)(2-methyl­propan-1-amine)­cobalt(III) dibromide

The title compound, is a cobalt(III) dibromide complex having two (ethyl­ene-1,2-di­amine) ligands coordinating cis to each other.

Methyl 4-{N′-[(1E)-1-(pyrazin-2-yl)ethyl­idene]hydrazinecarbon­yl}benzoate

The asymmetric unit of the compound contains two independent mol­ecules with different orientations about the hydrazone bond. The mol­ecular packing features N—H⋯O hydrogen bonds that lead to a twisted supra­molecular chain along the b-axis direction.

1,1′-[(2,3,5,6-Tetra­methyl-1,4-phenyl­ene)bis­(methyl­ene)]di­piperidine

The asymmetric unit of the title compound comprises one half-mol­ecule, the other half being generated by a center of inversion. The piperidine ring adopts a chair conformation. A short intra­molecular C—H⋯N hydrogen bond stabilizes the mol­ecule and forms an S(6) motif.

6-Meth­oxy-2-(2-meth­oxy­naphthalen-1-yl)-4H-chromen-4-one

The synthesis and crystal structure of a biologically important pharmacophore containing flavone is reported.

4-Phenyl-2,5,5a,6,7,8,9,9a-hexa­hydro-1H-1,5-benzodiazepine-2-thione ethanol monosolvate

In the title compound, the seven-membered ring has a twisted envelope conformation and the saturated six-membered ring a chair conformation. In the crystal, N—H⋯O, N—H⋯S, O—H⋯S hydrogen bonds and C—H⋯π inter­actions link both main and solvent mol­ecules into layers lying parallel to (101).

(3E)-3-{(2E)-3-[4-(Di­methyl­amino)­phen­yl]prop-2-enyl­idene}-3,4-di­hydro-2H-chromen-4-one

The (di­methyl­amino)­phenyl ring and the chromanone ring system are linked via an α-β unsaturated carbon bridge. The dihedral angle between the two terminal phenyl rings is 29.66 (6)°. The tetra­hydro-4H-pyran-4 one ring in the chromanone moiety adopts a sofa conformation.

Ethyl 6′-cyano-7′-phenyl-1′,6′,7′,7a'-tetra­hydro-3′H-spiro­[indeno­[1,2-b]quinoxaline-11,5′-pyrrolo[1,2-c]thia­zole-6′-carboxyl­ate

The indene and thia­zole rings adopt an envelope conformation while the pyrrole ring adopts a twisted conformation. The crystal structure is stabilized by inter­molecular C—H⋯·O and C—H⋯·N hydrogen bonds.

2-(2-Fluoro­phen­yl)-3-hy­droxy-4H-chromen-4-one

The synthesis and crystal structure of a biologically important pharmacophore containing flavonol is reported.

8,9-Di­meth­oxy­benzo[b]naphtho­[2,3-d]thio­phene

The fused ring system in 8,9-di­meth­oxy­benzo[b]naphtho­[2,3-d]thio­phene is almost planar.

Ethyl 2-(5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7-yl)pent-4-enoate

The fused triazolo­pyrimidine ring system of the title mol­ecule is planar with the pent-4-enoate substituent nearly orthogonal to it. In the crystal, inversion-related C—H⋯O hydrogen bonds form dimers which are linked into chains extending along the a-axis direction by inversion-related C—H⋯π(ring) inter­actions.

3-Acetyl-7-[2-(morpholin-4-yl)eth­oxy]chromen-2-one

The morpholine ring of the title compound adopts a chair conformation with the exocyclic N—C bond in an equatorial orientation.

2-(4-Amino­phen­yl)-3-[3,4-bis­(pyridin-2-ylmeth­oxy)phen­yl]acrylo­nitrile

The crystal structure of C₂₇H₂₂N₄O₂ is characterized by N—H⋯N hydrogen bonds connecting the mol­ecules into zigzag chains running along the b-axis direction.

Revision of the crystal structure of `bis­(glycine) squaric acid'

Re-refinement of the crystal structure against the original diffraction data after correct H-atom placement proves that `bis glycine' squaric acid is in fact the previously reported diglycinium squarate.

L-Histidinium iodide

The title compound, C₆H₁₀N₃O₂⁺·I⁻, contains a protonated L-histidine mol­ecule as cation and an iodine anion. The crystal packing is controlled by inter­molecular N—H⋯O and N—H⋯I hydrogen bonds.

(Z)-2-(4-Nitro­phen­yl)-3-[4-(pyridin-4-ylmeth­oxy)phen­yl]acrylo­nitrile

The crystal structure the title compound has a two-dimensional layer structure.

A dibenzo­furan derivative: 2-(pent­yloxy)dibenzo[b,d]furan

The title compound crystallizes in two-dimensional sheets in which 2-(pent­yloxy)dibenzo[b,d]furan mol­ecules are arranged in a head-to-head and tail-to-tail fashion that enables hydro­phobic inter­actions between fully extended 2-pent­oxy chains and π–π stacking between dibenzo­furan rings in adjacent rings.

3-[2-(3-Nitro­phen­yl)hydrazin-1-yl­idene]pentane-2,4-dione

Three independent but conformationally similar mol­ecules, showing intra­molecular N—H⋯O hydrogen-bonded ring formation, are present in the asymmetric unit. In the crystal, C—H⋯O inter­actions give rise to a supra­molecular sheet structure.