Porous Cu−Cd Mixed-Metal−Organic Frameworks Constructed from Cu(Pyac)2 {Bis[3-(4-pyridyl)pentane-2,4-dionato]copper(II)}

Porous Cu−Cd mixed-metal−organic frameworks [{Cd(NO3)2}2{(Cu(Pyac)2}3] (M‘MOF 1) and [{CdCl2}{Cu(Pyac)2}2] (M‘MOF 2) {Cu(Pyac)2 = bis[3-(4-pyridyl)pentane-2,4-dionato]copper(II)} have been synthesized by the reaction of Cu(Pyac)2 with Cd(NO3)2 and CdCl2. They are noninterpenetrating 1D ladder and 2D square-grid frameworks, constructed from Cu(Pyac)2 building blocks with T-shaped Cd(NO3)2 nodes and square-planar CdCl2 nodes, respectively. The 1D ladders and 2D square grids are stacked in ABCABC... and ABCDEF... packings, leading to 2D interconnected channels of ca. 5.7 × 10.2 and 4.1 × 9.8 Å in 1 and 1D channels of ca. 8.0 × 8.2 Å in 2, respectively. The copper sites in these two M‘MOFs are coordinated by solvent molecules and exposed to the pores.