Fig. 4. XANES spectra [red line, 0.6 mmol of CuI and 12 mmol of LiCl in 12 ml of DMA at room temperature (rt) under N2 for 5 min; black line, 0.6 mmol of CuI and 12 mmol of LiCl in 12 ml of DMA at rt under air for 5 min; brown line, 0.6 mmol of CuI, 12 mmol of LiCl, and 30 mmol of 2a in 12 ml of DMA at rt under air for 5 min; green line, 0.6 mmol of CuI, 12 mmol of LiCl, and 30 mmol of 2a in 12 ml of DMA at 120°C under air for 5 min].
