ANCHORAGE OF 4-NITROPYRIDINE N-OXIDE, AN OPTICALLY NONLINEAR ENTITY, ONTO CDCL2 AND CDI2 HOST MATRICES

The syntheses and crystal structures of bis(4-nitropyridine N-oxide)cadmium chloride and bis(4-nitropyridine N-oxide)cadmium iodide dihydrate are reported. The cadmium chloride complex exhibits a second-harmonic generation signal (SHG) of the same magnitude as that of KTiOPO4 (KTP). The CdCl2 polymeric chains host the 4-nitropyridine N-oxide molecules through short Cd-O bonds, suggesting an extension of the pi molecular orbital of the guest molecule through a O-Cd-O bridge.