R. Morenofuquen et al., THE 1 1-COMPLEX FORMED BY 2-PICOLINE N-OXIDE AND 3-CHLOROBENZOIC ACID/, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1635-1637
The title co-crystal, C6H7NO . C7H5ClO2, belongs to a series of molecu
lar complexes based on the N-O group and was studied in order to estab
lish its possible nonlinear optical behaviour. The 2-picoline N-oxide
and 3-chlorobenzoic acid moieties are held together by an intermolecul
ar hydrogen bond between the N-O and O-H groups. This system shows a t
ransparency in the visible region of spectra.