Synthesis and luminescence properties of a new tripode containing 2,2′-bipyrazine subunits: The tris-[(6-methyl-2,2′-bipyrazine-2-yl)methyl]amine
作者:Florence Bodar-Houillon、Alain Marsura
DOI:10.1016/0040-4039(94)02381-k
日期:1995.2
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($) process efficiency, preferentially along the transition D-5(0) --> F-7(2).