Ammonium 5-sulfosalicylic acid monohydrate(NH4·C7H5O6S·H2O, ASSA) was synthesized and optical grade crystal with dimensions of 45 mm × 20 mm 
A heterometallic metal-organic framework,Ag In(nicotinate)4·1.5DMF,was obtained from the reaction of nicotinic acid,Ag NO3 and In(NO3)3 in DMF.The complex