Crystal structures of {[Cu(Lpn)<sub>2</sub>][Fe(CN)<sub>5</sub>(NO)]·H<sub>2</sub>O}<sub><i>n</i></sub>and {[Cu(Lpn)<sub>2</sub>]<sub>3</sub>[Cr(CN)<sub>6</sub>]<sub>2</sub>·5H<sub>2</sub>O}<sub><i>n</i></sub>[where Lpn = (<i>R</i>)-propane-1,2-diamine]: two heterometallic chiral cyanide-bridged coordination polymers
Acta crystallographica. Section E, Crystallographic communications