Novel, highly photoluminescent Eu(III) and Tb(III) tetrazolate-2-pyridine-1-oxide complexes

Tetrazole-2-pyridine-1-oxide was prepared from 2-cyanopyridine and sodium azide, followed by oxidation with m-chloroperbenzoic acid. This ligand forms neutral 1:3 complexes with Eu(III) and Tb(III) cations. The complexes are photoluminescent in solution, with photoluminescence quantum yields 13% and 31%, respectively.

Graphical abstractTetrazole-2-pyridine-1-oxide forms neutral 1:3 complexes with Eu(III) and Tb(III) cations. The complexes are photoluminescent in solution, with photoluminescence quantum yields 13% and 31%, respectively.Figure optionsDownload full-size imageDownload high-quality image (160 K)Download as PowerPoint slideHighlights► Tetrazole-2-pyridine-1-oxide can be prepared easily from 2-cyanopyridine. ► Tetrazole-2-pyridine-1-oxide forms highly photoluminescent Eu(III) and Tb(III) neutral complexes. ► These Eu(III) and Tb(III) neutral complexes have photoluminescence quantum yields 13% and 31%, respectively.