Synthesis and luminescence properties of a new tripode containing 2,2′-bipyrazine subunits: The tris-[(6-methyl-2,2′-bipyrazine-2-yl)methyl]amine
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Add time:07/23/2019 Source:sciencedirect.com
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(III) 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 5D0→7F2.
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