Synthesis, crystal structure and second harmonic generation of (DMAPM+)[Cd(DMAP)I3]−

A new inorganic–organic hybrid, (DMAPM+)[Cd(DMAP)I3]−, (DMAPM+I−=4-N,N-dimethylamino-1-methyl-pyridinium iodide, DMAP = 4-N,N-dimethylamino- pyridine) 1, has been prepared, showing a moderate second harmonic generation (SHG) of about three times as strong as that of potassium dihydrogen phosphate (KDP).