Molecular Crystals and Liquid Crystals, Vol.381, 151-161, 2002
Crystal and molecular structures of symmetric vinamidinium salts
Structures of the compounds 1-dimethyl amino-3-dimethyl imino 2-(para chlorophenyl) prop-1-ene perchlorate, C13H20 N 2O4Cl2 ( 3 ) 1-dimethyl amino-3-dimethyl imino 2-(para nitrophenyl) prop-1-ene perchlorate, C13H20N3O6Cl(6), and 1-dimethyl amino-3-dimethyl imino 2-(phenyl) prop-1-ene perchlorate, C13H21N2O4Cl(7) have been solved. The compounds exhibit NLO property. The C-N bonds are of the order of 1.32 Angstrom, showing a pseudo double bond character.