issue contents
December 2020 issue
research communications
Download citation
Download citation
The title acyclic meta-bromo substituted imide derivatives were synthesized in good yields from condensation reactions of 3-bromobenzoyl chloride with 2-aminopyridine or 2-aminopyrimidine using standard condensation reaction conditions and subsequent column chromatography.
Download citation
Download citation
The title molecules were synthesized by the reaction of the corresponding sodium benzoate with chloroacetic acid amide. Single crystals were obtained from the reaction products under the same conditions.
Download citation
Download citation
The title dihalogenated salicylaldehyde derivative has been studied for its antibacterial characteristics. The salicylaldehyde engages in intramolecular hydrogen bonding at a distance of 2.6231 (19) Å while the molecules pack together via weak intermolecular C—H⋯O, C—H⋯F and F⋯O interactions and offset face-to-face π-stacking.
CCDC reference: 2041401
Download citation
Download citation
Owing to the intramolecular steric hindrance between the mutually cis-positioned 8-(dimethylphosphanyl)quinoline (Me2Pqn) ligands, the nickel(II) complex of cis-[Ni(Me2Pqn)2]2+ shows a remarkable tetrahedral distortion of the NiII coordination geometry. In contrast, the corresponding platinum(II) complex of cis-[Pt(Me2Pqn)2]2+ exhibits a typical square-planar PtII coordination center, but large envelope-type distortions of the five-membered chelate planes are observed.
Download citation
Download citation
The title compound, a rearrangement product of an o-pyridinyl anthracenyl isoxazole ester, features a bicyclic acetal structure, which has two extended almost co-planar ring systems, which subtend a fold angle of 102.17 (5)°. In the crystal, the molecules are closely knitted together through C—H⋯N and C—H⋯O hydrogen bonds and form chains of alternating enantiomers propagating along the c-axis direction.
CCDC reference: 2041149
Download citation
Download citation
A third monoclinic polymorph of 2,6-dimethoxybnzoic acid is reported. The acidic O—H bond of the carboxyl group adopts a synplanar conformation.
CCDC reference: 2042162
Download citation
Download citation
In the title compound, intermolecular C—H⋯π interactions and π–π stacking interactions help to stabilize the crystal structure, forming a three-dimensional network.
CCDC reference: 2043609
Download citation
Download citation
The crystal structure of the title compound is stabilized by the presence of weak C—H⋯N hydrogen bonds and slipped π–π interactions. Hirshfeld surface analysis showed that H⋯H contacts are the dominant interactions.
CCDC reference: 2043709
Download citation
Download citation
The crystal structures are reported of the 6,6-difluoro-6H-dibenzo[c,e][1,2]oxaborinin-6-ide (or 9,9-difluoro-10-oxa-9-boraphenanthren-9-id)anion with two different cations, namely, potassium 6,6-difluoro-6H-dibenzo[c,e][1,2]oxaborinin-6-ide featuring a polymeric structure, and bis(tetraphenylphosphonium) bis(6,6-difluoro-6H-dibenzo[c,e][1,2]oxaborinin-6-ide) acetonitrile trisolvate, which is composed of discrete cations, anions and acetonitrile solvent molecules linked by C—H⋯O, C—H⋯N and C—H⋯F hydrogen bonds.
Download citation
Download citation
The title compound, [Ni(NCS)2(C5H12N2S)2], consists of discrete complexes with a distorted all-trans square-planar coordination geometry that are linked by intermolecular C—H⋯S hydrogen bonds into corrugated layers parallel to the ac plane.
CCDC reference: 2044233
Download citation
Download citation
The crystallization of a new hydrated form of sodium diclofenac was achieved, with the anions surrounding an [Na4]4+ cationic cluster formed with water molecules and carboxylic O atoms.
CCDC reference: 2044232
Download citation
Download citation
The title N-tosylated secondary vinylamine was obtained by alkaline treatment of 1,5-bis(1-phenoxy)-3-azapentane at moderate heating. Theoretical predictions suggest that the title compound could inhibit gluconate 2-dehydrogenase (85% probability), as well as to act as a mucomembranous protector (73%).
CCDC reference: 2044436
Download citation
Download citation
Acetaminophen assists as a co-former in the crystallization of hexamethylenetetramine carboacetaminophenborane, which may otherwise be challenging to form a crystal itself.
CCDC reference: 1828957
Download citation
Download citation
The single-crystal X-ray structure of trans-bis(pyridin-3-yl)ethylene (3,3′-bpe) is reported. Integrity between neighboring molecules in the solid state is maintained by an array of C—H⋯N hydrogen bonds and edge-to-face C—H⋯π interactions.
CCDC reference: 1985201
Download citation
Download citation
The title compounds represent the most hydrated thulium nitrates known so far. Both structures consists of molecular [Tm(NO3)3(H2O)4] complexes and additional water molecules, which are interconnected by medium-strong to weak hydrogen bonds.
Download citation
Download citation
The synthesis and characterization of a new mandelato ZnII complex with 1,2-bi(4-pyridyl)ethane is reported. The Zn cation is coordinated by two N atoms from the 1,2-bi(4-pyridyl)ethane unit and four O atoms from two mandelate anions in a slight distorted octahedral coordination geometry.
CCDC reference: 2040978
Download citation
Download citation
Six potassium rare-earth molybdates KRE(MoO4)2 (RE = Tb, Dy, Ho, Er, Yb, and Lu) were synthesized by flux-assisted growth in K2Mo3O10. The crystal structures were determined using single-crystal X-ray diffraction data. The synthesized molybdates crystallize within the orthorhombic Pbcn space group (No. 60). The unit-cell parameters a and c increase linearly whereas b decreases with larger RE cations, based on crystal radii. The unit-cell volumes increase linearly and the densities decrease linearly with larger RE cations.