A highly stable and luminescent mononuclear Cu(I) bis-{5-tert-butyl-3-(6-methyl-2-pyridyl)-1H-1,2,4-triazole} complex

A new luminescent mononuclear Cu(I) bis-{5-tert-butyl-3-(6-methyl-2-pyridyl)-1H-1,2,4-triazole} complex has been synthesized and characterized. It is shown that the introduction of the methyl group at the ortho-position of the pyridyl ring is very important and helpful for improving the stability and luminescence properties of Cu(I) complexes.