New 2D coordination polymers containing both bi- and tri-dentate dicyanamide bridges and intercalated phenazine

The isomorphous structures of M(dca)(2)(H2O).phz [M = Co, Ni; dca = dicyanamide, N(CN)(2)(-); phz = phenazine] contain phz molecules intercalating between 2D M(dca)(2)(H2O) sheets containing bi- and tri-dentate dca ligands; the Ni complex displays long-range order (T-c = 5.7 K).