Ionothermal Synthesis of Chiral Metal Phosphite Open Frameworks with In Situ Generated Organic Templates

Two novel three-dimensional chiral metal phosphite open frameworks with 4-connected quartz topology, [Me2-DABCO]­[M2(HPO3)3] [M = Co (1), Zn (2); Me2-DABCO = N,N′-dimethyl-1,4-diazabicyclo­[2.2.2]­octane], have been ionothermally synthesized in deep eutectic solvents (choline chloride/1,3-dimethylurea). It is interesting that the organic template, Me2-DABCO, is in situ generated from the alkylation reaction of 1,4-diazabicyclo[2.2.2]­octane and dimethyl phosphites.