Abstract
Metal-organic frameworks (MOFs) are porous coordination polymers with the potential to act as supports for heterogeneous catalysis owing to their porosity and tunability. The metallolinker H4(PtCl-PCP) [H4(PtCl-PCP) = ClPt(C6H3-2,6-(Ar2PCH2)2), Ar = p-C6H4COOH] was synthesized and used to assemble a MOF with binuclear copper paddlewheel secondary building units (SBUs). A second MOF called IMP-9, assembled from Si(C6H5p-COOH)4 linkers, was synthesized and doped with P(C6H4p-COOH)3 linkers to create defect sites for postsynthetic metallation. Characterization of the parent and doped MOFs by nuclear magnetic resonance (NMR) and PXRD showed incorporation of the phosphine oxide O=P(C6H4p-COO)33-.