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Triple Framework Interpenetration and Immobilization of Open Metal Sites within a Microporous Mixed Metal-Organic Framework for Highly Selective Gas Adsorption

Lookup NU author(s): Emeritus Professor Mark ThomasORCiD


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A three-dimensional triply interpenetrated mixed metal organic framework, Zn-2(BBA)(2)(CuPyen).G(x) (M'MOF-20; BBA = biphenyl-4,4'-dicarboxylate; G = guest solvent molecules), of primitive cubic net was obtained through the solvothermal reaction of Zn(NO3)(2), biphenyl-4,4'-dicarboxylic acid, and the salen precursor Cu(PyenH(2))-(NO3)(2) by a metallo-ligand approach. The triple framework interpenetration has stabilized the framework in which the activated M'MOF-20a displays type-I N-2 gas sorption behavior with a Langmuir surface area of 62 m(2) g(-1). The narrow pores of about 3.9 angstrom and the open metal sites on the pore surfaces within M'MOF-20a collaboratively induce its highly selective C2H2/CH4 and CO2/CH4 gas separation at ambient temperature.

Publication metadata

Author(s): Zhang ZJ, Xiang SC, Hong KL, Das MC, Arman HD, Garcia M, Mondal JU, Thomas KM, Chen BL

Publication type: Article

Publication status: Published

Journal: Inorganic Chemistry

Year: 2012

Volume: 51

Issue: 9

Pages: 4947-4953

Print publication date: 01/05/2012

ISSN (print): 0020-1669

ISSN (electronic): 1520-510X

Publisher: American Chemical Society


DOI: 10.1021/ic2021275


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Funder referenceFunder name
Oak Ridge National Laboratory
Office of Basic Energy Sciences, U.S. Department of Energy
AX-1730Welch Foundation
CHE 0718281NSF