Studies on Molecular Interaction in Bromo Substituent Salicylaldehyde with Aniline

C. Ramachandra Raja, R. Ida Malarselvi

Abstract: Information concerning intermolecular hydrogen bonding in 5- bromo salicylaldehyde and aniline can be obtained by a variety of methods. Bromo salicylaldehyde is chosen in preference to other halogens as it is easily prepared and gives a strong intermolecular hydrogen bond. The effect of the aromatic ring substituent upon the frequency of the carbonyl in the title mixture has been examined by the FTIR spectroscopy and the 1H -NMR spectroscopic studies which are employed to elucidate the structure of the title mixture. The existence of strong intermolecular attraction will be reflected in molecular acoustics and physico chemical behavioral studies. The results are discussed in terms of the influence of steric and electronic factors and compared with other data in the literature.

Keywords: Inter-Intra molecular bonding, FTIR, Molecular acoustics, Halogens, Steric and Electronic factors