Figure 2.

a) Molecular structures of 1 (left, upside view; right, frontside view), b) 2, and c) 3 (only one of the two crystallographically independent molecules in the asymmetric unit is shown), with 50 % probability ellipsoids. Hydrogen atoms, lattice solvent (MeCN), and anions are omitted for clarity. Selected atom distances and angles of 1, 2, and 3 are listed in Table 1.