Figure 2: XAFS analysis of CuX reduction.
From: Unravelling the hidden link of lithium halides and application in the synthesis of organocuprates

(a) XANES spectra of various cuprous salts with excess nBuLi in THF under −78 °C. (b) Comparison of FT magnitudes of k2-weighted EXAFS of various Cu(I) species mixed with excess nBuLi in THF under −78 °C. (3.0 Å−1<k<12.4 Å−1).