ligands and their metal comple ft ir spectra of ligand and metal ft ir spectra of the ligand h3nta characteristic ftir peaks of metal ir spectral ysis of ligand and its ft ir peaks of metal comple solid state ir spectra of the ligand i ir spectra 4000 400 cm 1 of the i r spectral data of the ligands and ir spectral ignment for the ligands ir frequencies metal comple and ir spectra of ligand and comple ir spectra of pas and its metal