(2-Hydroxy­ethyl)(prop­yl)aza­nium 2-[(2-carboxy­phen­yl)disulfan­yl]benzoate monohydrate

With the exception of the terminal hydr­oxy group [N—C—C—O = 53.8 (5)°], the cation of the title salt hydrate, C5H14NO+·C14H9O4S2 −.H2O, is a straight chain. A twisted conformation is found for the anion [C—S—S—C = −87.44 (16)°]. In the crystal, the anions self-assemble into a helical supra­molecular chain via charge-assisted O—H⋯Oc hydrogen bonds. These chains are connected into a three-dimensional network via N—H⋯Oc, N—H⋯Ow, Oh—H⋯Ocb, and Ow—H⋯Oc hydrogen-bonding inter­actions (c = carboxyl­ate, w = water, h = hydr­oxy and cb = carbon­yl)

Bis[eth­yl(2-hydroxy­ethyl)aza­nium] 2,2′-disulfanediyldibenzoate

The asymmetric unit of the title salt, 2C4H12NO+·C14H8O4S2 2−, contains an eth­yl(2-hydr­oxy)aminium cation and half a 2,2′-disulfanediyldibenzoate anion, with the latter disposed about a twofold axis. The cation is a straight chain with the exception of the terminal hydr­oxy group [the N—C—C—O torsion angle is 66.5 (2)°]. A twisted conformation is found for the anion [the C—S—S—C torsion angle is 91.51 (9)° and the dihedral angle between the rings is 81.01 (4)°]. A supra­molecular chain with base vector [101] and a tubular topology is formed in the crystal structure mediated by charge-assisted O—H⋯O− and N+—H⋯O− hydrogen bonding

2,2′-Imino­diethanaminium 2,2′-(disulfanyldi­yl)dibenzoate dihydrate

In the title hydrated salt, C4H15N3 2+·C14H8O4S2 −·2H2O, the dication (with both terminal –NH2 groups protonated) adopts a U-shaped conformation, the Namine—C—C—Naza­nium torsion angles being 57.9 (6) and 60.3 (6)°. The dianion is twisted: the central C—S—S—C torsion angle is 81.3 (2)° and the dihedral angle between the benzene rings is 85.4 (3)°. In the crystal, a chain in the a-axis direction mediated by water–carboxyl­ate O—H⋯O hydrogen bonds through a sequence of alternating 12-membered {⋯OCO⋯HOH}2 and eight-membered {⋯O⋯HOH}2 synthons occurs, which involves only one of the carboxyl­ate residues. The second carboxyl­ate residue participates in N—H⋯O hydrogen bonding, generating a three-dimensional network, along with aza­nium–water N—H⋯O hydrogen bonds

Bis[N-2-hydroxyethyl,N-methyldithiocarbamato-κ2 S,S)'-4-{[(pyridin-4-ylmethylidene)hydrazinylidene}methyl]pyridine-κN 1)zinc(II): crystal structure and Hirshfeld surface analysis

In the title compound, [Zn(C4H8NOS2)2(C12H10N4)], the ZnII atom exists within a NS4 donor set defined by two chelating dithiocarbamate ligands and a pyridyl-N atom derived from a terminally bound 4-pyridinealdazine ligand. The distorted coordination geometry tends towards square-pyramidal with the pyridyl-N atom occupying the apical position. In the crystal, hydroxyl-O—H...O(hydroxyl) and hydroxyl-O—H...N(pyridyl) hydrogen-bonding give rise to a supramolecular double-chain along [1-10]; methyl-C—H...π(chelate ring) interactions help to consolidate the chain. The chains are connected into a three-dimensional architecture via pyridyl-C—H...O(hydroxyl) interactions. In addition to the contacts mentioned above, the Hirshfeld surface analysis points to the significance of relatively weak π–π interactions between pyridyl rings [inter-centroid distance = 3.901 (3) Å]

3-[3-(trifluoromethyl)phenyliminomethyl]benzene-1,2-diol

The crystal packing of the essentially planar molecules of the title compound, C14H10F3NO2, is stabilized by O - (HO)-O-... hydrogen bonds and possible C - (HO)-O-... and C - (HF)-F-... interactions

N-formyl-N '-(2-oxidobenzylidene) hydrazine-kappa(3) O, N, O '] diphenyltin(IV)

The title compound, [Sn(C6H5)(2)(C8H6N2O2)], features a five-coordinate C2NO2 coordination geometry for Sn that is intermediate between trigonal-bipyramidal and square-pyramidal

Bis[N-(2-hy­droxy­eth­yl)-N-propyl­dithio­carbamato-κ2 S,S′]bis­(4-{[(pyridin-4-yl­methyl­idene)hydrazinyl­idene]meth­yl}pyridine-κN 1)cadmium

The complete mol­ecule of the title compound, [Cd(C6H12NOS2)2(C12H10N4)2], is generated by crystallographic inversion symmetry. The distorted octa­hedral trans-N2S4 donor set for the Cd2+ ion is defined by two symmetrically S,S′-chelating dithio­carbamate anions and two pyridine N atoms derived from two monodentate 4-pyridine­aldazine (or 4-{[(pyridin-4-yl­methyl­idene)hydrazinyl­idene}meth­yl]pyridine) mol­ecules [dihedral angle between the aromatic rings = 17.33 (8)°]. In the crystal, mol­ecules are connected into a supra­molecular chain via O—H⋯N hydrogen bonds involving the 4-pyridine­aldazine N atoms not involved in coordination to cadmium. Weak C—H⋯O and C—H⋯N links consolidate the packing

Ethyl [1-(4-bromo­phen­yl)-1-hydr­oxy-3-oxobut­yl](phen­yl)phosphinate monohydrate1

In the title hydrate, C18H20BrO4P·H2O, a staggered conformation is found when the organic mol­ecule is viewed down the central P—C bond, with the oxo and hydroxyl groups being diagonally opposite; each of the central P and C atoms has an S-configuration. The crystal structure features supra­molecular double chains along the b axis mediated by Ohydrox­yl–H⋯Ooxo, Owater–H⋯Ooxo, and Owater–H⋯Owater hydrogen bonds

Bis(propan-2-yl) [(2S,3S)-2-hydr­oxy-3-nitro­butan-2-yl]phospho­nate

In the title compound, C10H22NO6P, a staggered conformation is found when the mol­ecule is viewed down the central P—C bond, with the oxo and hydr­oxy groups gauche to each other. The crystal structure features supra­molecular chains of helical topology propagating along the b axis, mediated by O—H⋯O hydrogen bonds