SYNTHESIS AND LUMINESCENCE PROPERTIES OF A NEW TRIPODE CONTAINING 2,2'-BIPYRAZINE SUBUNITS - THE TRIS-[(6-METHYL-2,2'-BIPYRAZINE-2-YL)METHYL]AMINE

摘要

New 6-methyl-2,2'-bipyrazinyl tripodal ligand 5 and pentadendate ligand 6 have been obtained in a one step alkali metal ion assisted reaction or in two steps from a 6-bipyrazine derivative. Eu(lII) and Tb(III) complexes have been synthesized, UV-Vis spectra show strong absorbance of both complexes at 295nm. Excitation of the Eu(III) complex in acetonitrile causes an emission of Eu3+ ion at 614 nm occuring of the A-ET-E(