Extended Data Fig. 9: Cation exchange reactions with different CdI2(PR3)2 complexes (R = octyl, butyl, propyl, and ethyl).
From: Precision synthesis of a CdSe semiconductor nanocluster via cation exchange
The same 365 nm (dark blue curves) and 355 nm (light blue curves) intermediates are observed in reactions with various CdI2(PR3)2 complexes. The reaction with bulkier CdI2[P(octyl)3]2 leads to a slower 355 nm → 372 nm conversion while the reaction with less bulky CdI2(PEt3)2 results in more aggregation. CdI2(PPr3)2 shows the best results in balancing reaction rates and preventing aggregations. In situ UV-vis spectra are monitored every 10 minutes in the first hour (left) and every 2 hours for the rest of the reaction (right).
