Copper and cadmium phosphonates based on 2-quinolinephosphonate

This paper reports two new complexes Cu(2-C9H6NPO3) (2) and Cd(2-C9H6NPO3)(H2O) (3) based on 2-quinolinephosphonic acid (1). Compound 2 shows a layer structure commonly found for copper monophosphonates while compound 3 shows a new type of layer structure where chains of corner sharing {CdO5N} octahedra are connected by {CPO3} tetrahedra into an inorganic layer.