Synthesis of imin, imidazole derivatives of 1,10-phenanthroline and examination of some metal complexes

ABSTRACTPhD ThesisSYNTHESIS OF IMIN, IMIDAZOLE DERIVATIVES OF 1,10-PHENANTHROLINE AND EXAMINATION OF SOME METALCOMPLEXESZafer ŞERBETÇİFırat UniversityGraduate School of Natural and Applied SciencesDepartment of Chemistry2006, Page : 77In this study, organic ligands including 1,10-phenanthroline, 2-(3-nitrophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline(L1), 4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)-N,N-dimethylbenzenamine(L2), 1,10-phenanthrolin-5,6-[4,4'-(ethane-1,2-diylbis(oxy))dibenzenamine](L3)and 2-(4-chlorophenyl)- 1H-imidazo[4,5-f][1,10](L4)phenanthroline have been synthesized. For this,the yields of these organic ligands were increased and than their metal complexes were prepared byusing acetates and sulfates of different metals.The synthesis of the ligands was carried out two steps. At first step, 1,10-phenanthroline withHNO3+H2SO4 and as catalist NaBr were one by one introduced to reaction and in result 1,10-phenanthroline-5,6-dione was obtanied. At second step, the 1,10-phenantroline-5,6-dione with 3-nitrobenzaldehyde, 4-(dimethylamino)benzaldehyde, 4,4'-(ethane-1,2-diylbis(oxy))dibenzenamine, 3-chlorobenzaldehyde, were one by one introduced to reaction. The obtanied products are L1, L2, L3 veL4. At third step, the Cu(II), Co(II), Zn(II), Cd(II) and Ni(II) complexes with ligands were synthesized.The chemical structure of the synthesized metal complexes and ligands were determined bymeans of elemental analysis, IR, UV, 1H-NMR and TGA techniques. It is observed that thesynthesized complexes have distorted octahedral geometrical structures.Keywords: 1,10-phenanthroline, 1,10-phenantroline-5,6-dion , imidazole, complexes