VIBRATIONAL AND SERS SPECTRA OF SPERMINE PHOSPHATE HEXAHYDRATE

FTIR, Raman and SERS spectra of spermine phosphate hexahydrate have be en recorded and analysed. Vibrational spectra show the protonation of amino and imino groups indicated by the presence of HPO42- ion. The mo lecule is found to be adsorbed to the metal surface through nitrogen a nd oxygen atoms of the molecules. Distortion of the HPO42- ion, change of symmetry of the molecule due to chemisorption and the enhancement in intensity of the amino group vibrations are discussed.