Denizli, Gökhan Ankara Üniversitesi - Faculty of Science - Department of Chemistry, Turkey , Öz, Sevi Ahi Evran University - Faculty of Science and Arts - Department of Chemistry, Turkey , Atakol, Arda Ankara Üniversitesi - Faculty of Science - Department of Chemistry, Turkey , İnal, Emine Kübra Ankara Üniversitesi - Faculty of Science - Department of Chemistry, Turkey , Akay, Mehmet Abdülkadir Ankara Üniversitesi - Faculty of Science - Department of Chemistry, Turkey

The Effect of o-Substituents on Mass Spectra of Schiff Bases Synthesized from Salicylaldehyde

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21 Schiff bases were prepared from orto, meta and para substituted hydroxy, metoxy, floro, chloro, bromo, iodo anilines, benzyl amines, 2-hydroxy benzyl amines and salicylaldehyde. The Schiff bases were ionized with 20-140 eV electrons using Direct Inlet to determine their mass fragments. In the cases where the substituents are in meta or para position and in the range of 20 to 140 eV, the molecular peaks were observed as the base peaks. The base peak in the spectra of the substances, in which the substituent close to the aniline side is in ortho position, was found to be the M-X (m/z=196) peak. M+HX peaks were also observed in the spectrum of the bromine substituted compound which is probably due to that the formed HBr attacked the molecule and was added to it.

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o , effect , Schiff bases , salicylaldimine , Direct Inlet , HX addition

Süleyman Demirel University Faculty of Arts and Science Journal of Science

113