Dive into the research topics of 'Crystal structures of {[Cu(Lpn)2][Fe(CN)5(NO)]-H2O}n and {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n [where Lpn = (R)-propane-1,2-diamine]: Two heterometallic chiral cyanide-bridged coordination polymers'. Together they form a unique fingerprint.