Molecular Encapsulation of Trimeric Chromium Carboxylate Clusters in Metal-Organic Frameworks and Propylene Sorption

Sanil E Sivan; Minhui Lee; Su-Kyung Lee; Ji Woong Yoon; Kiwoong Kim; Do-Young Hong; Kyung-Ho Cho; U-Hwang Lee; Jong-San Chang; Jaehoon Jung; Young Kyu Hwang

doi:10.1002/chem.201902249

Molecular Encapsulation of Trimeric Chromium Carboxylate Clusters in Metal-Organic Frameworks and Propylene Sorption

Chemistry. 2019 Oct 8;25(56):12889-12894. doi: 10.1002/chem.201902249. Epub 2019 Aug 8.

Authors

Sanil E Sivan^{1

2}, Minhui Lee³, Su-Kyung Lee^{1

4}, Ji Woong Yoon¹, Kiwoong Kim¹, Do-Young Hong^{1

2}, Kyung-Ho Cho¹, U-Hwang Lee^{1

2}, Jong-San Chang^{1

5}, Jaehoon Jung³, Young Kyu Hwang^{1

2}

Affiliations

¹ Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 305-600, Korea.
² Department of Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 217, Gajeong-Ro, Yuseong, Daejeon, 305-350, Korea.
³ Department of Chemistry, University of Ulsan, 93, Daehak-ro, Nam-gu, Ulsan, 44610, Republic of Korea.
⁴ Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 341-141, Korea.
⁵ Department of Chemistry, Sungkyunkwan University, Suwon, 440-476, Korea.

PMID: 31161642
DOI: 10.1002/chem.201902249

Abstract

Oxo-bridged trimeric chromium acetate clusters [Cr₃ O(OOCCH₃ )₆ (H₂ O)₃ ]NO₃ have been encapsulated for the first time in the mesoporous cages of the chromium terephthalate MIL-101(Cr). The isolated clusters in MIL-101(Cr) have increased affinity towards propylene compared to propane, due to generation of a new kind of pocket-based propylene-binding site, as supported by DFT calculations.

Keywords: encapsulation; isolation; metal-organic frameworks; molecular clusters; propylene sorption.

Grants and funding

SI-1902-02/National Research Council of Science & Technology