1D and 2D metal–organic frameworks functionalized with free pyridyl groups

We show that a molecule constructed from an organic solid-state synthesis, namely, rctt-1,3-bis(2-pyridyl)-2,4-bis(4-pyridyl)cyclobutane (ht-2,4′-tpcb) upon reaction with Cu(II) and Zn(II) ions gives one- (1D) and two-dimensional (2D) metal–organic frameworks (MOFs) of composition [Cu(hfac)2(2,4′-tpcb-ht)]∞ (where: hfac=hexafluoroacetylacetonate) (1) and [ Zn ( 2 , 4 ′ ‐ tpcb ‐ ht ) 2 ( H 2 O ) 2 ] ∞ 2 + (2). Each MOF possesses uncoordinated, or free, 2-pyridyl groups that decorate the walls of each extended structure.