Synthesis of the two isomers of heteroleptic Rh 12 L 6 L' 6 metal-organic polyhedra by screening of complementary linkers.

We have synthesised and characterised the two possible isomers of heteroleptic trigonal antiprismatic M 12 L 6 L' 6 MOPs by screening reactions of rhodium acetate with different pairs of complementary dicarboxylate linkers. The resulting 12 new MOPs (eight of isomer A + four of isomer B) are microporous in the solid state, exhibiting Brunauer-Emmett-Teller (BET) surface areas as high as 770 m 2 g -1 .