Fig. 5

Symmetry of mononuclear and dinuclear intermediates. a Symmetry of mononuclear species. Blue, red and green arrows indicate 1S, 1R and Py*, respectively. Yellow circles indicate Pd(II) ions. Labels aāf indicate chemically inequivalent methyl groups of 1 (Hg). b Symmetry of heterochiral cages. Blue and red arrows indicate 1S and 1R, respectively. Yellow circles indicate Pd(II) ions. Labels aād indicate chemically inequivalent methyl groups in 1 (Hg). One Pd(II) ion is eclipsed by the front Pd(II) ion