A chiral porous 3D metal-organic framework with an unprecedented 4-connected network topology

A novel homochiral 3D metal-organic framework [CdL2(H2O)(2)][ClO4](2)center dot 2DMF center dot 3EtOH center dot 5/3H(2)O, 1, (L = (R)- 6,6'-dichloro- 2,2'-diethoxy-1,1'-binaphthyl-4,4'-bipyridine) exhibits an unprecedented 4-connected network topology owing to the cis- configuration of the Cd coordination and possesses permanent porosity as demonstrated by TGA, XRPD, and CO2 adsorption isotherm studies.