Extended Data Fig. 3: Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) characterization of precursor and product clusters.
From: Precision synthesis of a CdSe semiconductor nanocluster via cation exchange
a, Mass spectrum of Cu26Se13(PEt2Ph)14 cluster and corresponding assignment of fragmentation peaks. All PEt2Ph ligands are dissociated during ionization. The most intense peak is assigned to a dimeric (Cu26Se13)2Cu fragment. b, Mass spectrum of Cd26Se17I18(PPr3)10 cluster and corresponding assignment of fragmentation peaks. The Cd26Se17 cluster framework is dissociated during ionization and reorganized into characteristic fragments of CdSe materials.
