6533b7d4fe1ef96bd12632e7

RESEARCH PRODUCT

1,4-Dihydro-1-methyl-4-nitriminopyridine Dihydrate

Jacek ZaleskiMaciej BujakZdzisław DaszkiewiczJanusz B. KyziołKrzysztof Ejsmont

subject

Hydrogen bondStereochemistryGeneral MedicineCrystal structureConjugated systemRing (chemistry)General Biochemistry Genetics and Molecular Biologychemistry.chemical_compoundCrystallographysymbols.namesakechemistryGroup (periodic table)PyridinesymbolsMoleculevan der Waals force

description

Molecules of the title compound, C6H7N302.2H20, are almost planar with the NNO2 nitrimino group twisted 8 (1) ° out of the plane of the pyridine ring. The nitrimino group and CsN ring form a conju- gated 7r-electron system. These molecules together with water molecules are arranged in planes, They are con- nected with each other by O--H.-.O, O--H...N and weaker C--H..-O hydrogen bonds. Four water mol- ecules form a planar square (OH..-O--H)2 ring with O-..O distances equal to 2.741 (2) and 2.778(2)A. These rings join pairs of molecular planes into double layers, interacting otherwise by van der Waals forces.

https://doi.org/10.1107/s0108270198008348