Gas inclusion crystal between 1-D coordination polymer and nitrous oxide: occurrence of crystal phase transition induced by a slight amount of fluid guests inside host

A novel inclusion crystal, {[Rh(II)2(bza)4(pyz)]n · 3n(N2O)} (1), was prepared and characterized by single-crystal X-ray diffraction analysis; linear alignment (N2O)n coherently generates in the channels of host rhodium benzoate pyrazine and there is a high possibility of the existence of an intermediate phase induced by a slight amount of adsorbed N2O inside the crystal even at room temperature.