US9296773B2
University of Texas System
What is claimed is: 1. A mixed-metal-organic framework (M′MOF) comprising a repeat unit of the formula Zn 3 (BDC) 3 [Cu(SalPyCy)] or Zn 3 (CDC) 3 [Cu(SalPyCy)], wherein BDC is 1,4-benzenedicarboxylate, CDC is 1,4-cyclohexanedicarboxylate, and SalPyCy is a ligand of the formula: 2. The M′MOF of claim 1 ,