Synthesis and crystal structure of a heterobimetallic cadmium–sodium complex of 1,3,5-triazine-2,4,6-trione, [CdNa<sub>2</sub>(C<sub>3</sub>H<sub>2</sub>N<sub>3</sub>O<sub>3</sub>)<sub>4</sub>(H<sub>2</sub>O)<sub>8</sub>]
Acta crystallographica. Section E, Crystallographic communications