Figure 5.
ESI-MS spectra from the reaction of [(LN(CH2Ph)2)CuI]+ (6) with PhIO suggesting the transient formation of the cupryl complex [(LN(CH2Ph)2)CuII-O•]+ (8) at m/z = 564.25 (∼70% formation) and [(LN(CH2Ph)(PhCHO−))CuII]+ (4) at m/z = 563.18 (∼30% formation). Insets showing the expected pattern for (a) 100% formation of 8 and (b) 100% formation of 4, and the best fitting to the data with (c) 70% formation of 8 plus 30% formation of 4. See text for further discussion.