2-Cyano-2-iso­nitro­soacetamide–3,4-di­methylpyrazole (1/1): a co-crystal of two mol­ecules with agrochemical activities

In the structure of the title co-crystal, C₃H₃N₃O₂·C₅H₈N₂, the components are linked by a set of directional O—H⋯N, N—H⋯O, N—H⋯N and C—H⋯O hydrogen bonds to yield a two-dimensional mono-periodic arrangement. The structure propagates in the third dimension by extensive π–π stacking inter­actions of nearly parallel mol­ecules of the two components, following an alternating sequence. The primary structure-defining inter­action is very strong oxime-OH donor to pyrazole-N acceptor hydrogen bond [O⋯N = 2.587 (2) Å], while the significance of weaker hydrogen bonds and π–π stacking inter­actions is comparable.

Crystal structure and Hirshfeld surface analysis of di­methyl 4′-bromo-3-oxo-5-(thio­phen-2-yl)-3,4,5,6-tetra­hydro-[1,1′-biphen­yl]-2,4-di­carboxyl­ate

In the title compound, mol­ecules are connected by inter­molecular C—H⋯S hydrogen bonds with (10) ring motifs, forming ribbons along the b-axis direction. C—H⋯π inter­actions consolidate the ribbon structure while van der Waals forces between the ribbons ensure the cohesion of the crystal structure.

Synthesis, crystal structure and Hirshfeld analysis of N-ethyl-2-{3-methyl-2-[(2Z)-pent-2-en-1-yl]cyclo­pent-2-en-1-yl­idene}hydrazinecarbo­thio­amide

The synthesis, crystal structure and Hirshfeld analysis of cis-jasmone 4-ethyl­thio­semicarbazone are reported. The crystallographically independent mol­ecule shows disorder over the jasmone carbon chain and, in the crystal, the mol­ecules are linked by H⋯S and H⋯N inter­actions into mono-periodic hydrogen-bonded ribbons parallel to the b-axis.

Crystal structure and Hirshfeld surface analysis of 5-hy­droxy­penta­nehydrazide

δ-Valerolactone was reacted with hydrazine hydrate in methanol affording crystals of 5-hy­droxy­penta­nehydrazide, which were characterized via single-crystal X-ray diffraction. The compound crystallizes in the ortho­rhom­bic space group Pca2₁ without any crystallization solvent. The hydrazide functional group shows C—N and C=O bond lengths measuring 1.3376 (17) Å and 1.2375 (16) Å, respectively.

Synthesis, crystal structure and properties of the trigonal–bipyramidal complex tris­(2-methyl­pyridine N-oxide-κO)bis­(thio­cyanato-κN)cobalt(II)

In the crystal structure of the title compound, discrete complexes with a rare Co coordination are found, in which the Co^II cations are fivefold coordinated by two thio­cyanate anions and three 4-methyl­pyridine N-oxide coligands within a slightly distorted trigonal–bipyramidal coordination.

Crystal structure and Hirshfeld surface analysis of (1H-imidazole-κN³)[4-methyl-2-({[2-oxido-5-(2-phenyl­diazen-1-yl)phen­yl]methyl­idene}amino)penta­noate-κ³O,N,O′]copper(II)

The crystal structure is reported of the copper(II) complex with an amino acid Schiff base ligand synthesized from azo­benzene-salicyl­aldehyde, L-leucine and copper(II) acetate. The crystal structure features N—H⋯O hydrogen bonds.