Figure 2
(a) Face-sharing connection of the coordination polyhedra through the triangular faces of the trigonal prisms; thick bonds indicate the primary Ba—O(nitroso) linkage. (b) The polyhedral chain accommodating organic anions and aqua ligands with a set of hydrogen-bond interactions represented by dotted blue lines. Symmetry codes: (iv) x, y + 1, z; (vii) −x + , −y, z − . |