Extended Data Fig. 7: The origin of chirality in Cd26Se17I18(PPr3)10 cluster and the packing of enantiomers in the unit cell.
From: Precision synthesis of a CdSe semiconductor nanocluster via cation exchange
a, Adaption of tetrahedral coordination into icosahedral framework induces chirality in the core. Left: icosahedral framework in left Cd26Se17 enantiomer with left-leaning Cd-Se bonds along the principal axis. Middle: achiral cuboctahedron in zincblende lattice with vertical alignments of all the Cd-Se bonds. Right: right-leaning Cd-Se bonds in the right Cd26Se17 enantiomer. b, Each unit cell contains two left (dark and light green) and two right (dark and light red) enantiomers. Arrow indicates the direction of the principal C3 axis. The corresponding orientations of enantiomers are shown in the tetrahedral outlines (right). Solvent molecules (toluene) in the unit cell are omitted for clarity.
