The 1:1 Complex Formed by 2-Picoline N-Oxide and 3-Chlorobenzoic Acid

The title co-crystal, C₆H₇NO.C₇H₅ClO₂, belongs to a series of molecular complexes based on the N-O group and was studied in order to establish its possible non-linear optical behavior. The 2-picoline N-oxide and 3-chlorobenzoic acid moieties are held together by an intermolecular hydrogen bond between the N-O and O-H groups. This system shows a transparency in the visible region of spectra.

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