Guest-dependent [Cd(CN) 2 ] n host structures of cadmium cyanide–alcohol clathrates: two new [Cd(CN) 2 ] n frameworks formed with Pr n OH and Pr i OH guests

Crystallization of Cd(CN)2 from the geometric isomers of propanol, PrnOH and PriOH, yielded new cadmium cyanide clathrates whose [Cd(CN)2]n frameworks are topologically and geometrically different not only from those of all the previously known cadmium cyanide clathrates but also from each other: the former has both hexagonal and pentagonal channels whereas the latter has only pentagonal channels.