Made in Water: A Stable Microporous Cu(I)-carboxylate Framework (CityU-7) for CO₂, Water, and Iodine Uptake

Abstract

Using water as the sole solvent, the bifunctional molecule tetrakis(methylthio)-1,4-benzenedicarboxylic acid (TMBD) was reacted with Cu(CHCN)BF to form a robust microporous metal-organic framework (MOF, CityU-7) featuring Cu(I) ions being simultaneously bonded to the carboxyl and thioether donors. The MOF solid is stable in air and can be easily activated by heating, without the need for treatment with organic solvents. The subnanoscopic pores (ca. 0.6 nm) of the host net allow for uptake of CO and HO but exhibit lesser sorption for N at 77 K. The microporous net can also be penetrated by I molecules.

Design and Construction of a Porous Heterometallic Organic Framework Based on Cu6I6 Clusters and One-Dimensional TbIII Chains: Syntheses, Crystal Structure, and Various Properties

“…In addition, numerous I 2 molecules in the porous structure can form intermolecular I–I···I–I bonds to favor this I 2 adsorption process. This phenomenon is similar to some reported porous MOFs containing Cu x I y clusters. − …”

Aluminum molecular rings bearing amino-polyalcohol for iodine capture

“…S44 †). 7,8,[49][50][51][52][53][54][55][56][57][58][59][60] Furthermore, we explored the adsorption mechanisms of AlOC-61 and AlOC-63 by PXRD, Raman spectroscopy, energydispersive X-ray spectroscopy (EDS), and DFT calculations. PXRD and structural characterization revealed the stability and crystalline maintenance of samples after adsorption (Fig.…”

Coordination Assemblies Based on a Methylthio Carboxylic Ligand: Syntheses, Structures and Luminescent Properties

“…Cu 2+ is possibly from the oxidation of Cu + by O2 during solvothermal process. [42,43] The asymmetric unit of complex 3 consists of two Cu + ions, four MBA linkers, two coordinated CH3CN and two crystallized CH3CN (Figure 1d). Each Cu 2+ is pentacoordinated to four O atoms from four MBA linkers with the bond length of 1.975(2), 1.969(2), 1.977(2) and 1.969(2) Å for Cu-O1, Cu-O2, Cu-O3 and Cu-O4, respectively.…”