We report a novel metal organic framework (MOF) based on a cobalt arylphosphonate, namely, [Co2(H4-MTPPA)]·3NMP·H2O (1·3NMP·H2O), which was prepared solvothermically from the tetrahedral linker tetraphenylmethane tetrakis-4-phosphonic acid (H8-MTPPA) and CoSO4·7H2O in N-methyl-2-pyrrolidone (NMP).
3) obtained using the tetrahedral linkers tetraphenylmethane tetrakis-4-phosphonic acid (H 8 MTTPA) and tetraphenylsilane tetrakis-4-phosphonic acid (H 8 STPPA) under solvothermal conditions. X-ray structures reveal 3D frameworks with large assessable voids. The percentage void volumes and the specific BET surface areas of 1 (48.7 %, 794 m 2 /g), 2 (48.1 %, 565 m 2 /g) and 3 (51.3 %, 927 m 2 /g) predicted by molecular simulations are among the highest reported for MOFs derived from phosphonic acids.
Here we report the first utilization
of the novel methane tetra-p-phenylphosphonic acid
(MTPPA) ligand for the preparation of metal complexes with Cu(II).
The hydrothermal and solvothermal reactions of tetratopic MTPPA as
a bridging ligand in conjunction with the square pyramidal {Cu(terpy)}2+ and {Cu2(pbterpy)}4+, (where terpy
= 2,2′:6′,2″-Terpyridine and pbterpy = 4′,4″″-(1,4-Phenylene)bis(2,2′:6′,2″-terpyridine))
as prefixed corner building units have produced one-dimensional [{Cu(terpy)}2(MTPPA-H5) (MTPPA-H6)]·(4.25H2O)(H3O) (1) and two-dimensional [{Cu2(pbterpy)}MTPPA-H4] (2), respectively. The structures
were characterized by single crystal X-ray diffraction and TGA.
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