|
Type |
Poster Presentation |
Area |
Inorganic Chemistry |
Room No. |
Exhibition Hall 2 |
Time |
4월 18일 (목요일) 11:00~12:30 |
Code |
INOR.P-15 |
Subject |
Preparation and gas sorption properties of a 3D In-MOF with diamond-like framework |
Authors |
Suk bin Yoon, Youngmee Kim1, Sung-Jin Kim2, Seong Huh* Department of Chemistry, Hankuk University of Foreign Studies, Korea 1Department of Chemistry and Nano Science, Ewha Womans University, Korea 2Department of Chemistry, Ewha Womans University, Korea |
Abstract |
The pseudotetrahedral node, In(O2CR)4, often found in InIII-based metal-organic frameworks (MOFs) without a cluster-based secondary building unit (SBU) is a negatively charged center due to charge mismatch between cationic InIII ion and four anionic carboxylate bridging linkers. Thus, In-MOFs tend to contain counter-cations near InIII centers in the frameworks. Dialkylammonium cations such as Me2NH2+ and Et2NH2+ directly derived from N,N-dimethylformamide (DMF) or N,N-diethylformamide (DEF) solvents play a significant role to form a stable framework through charge matching. If these cations thermally derived from DMF or DEF are not suitable for crystal growth of In-MOFs, it becomes very difficult to obtain high quality single crystals for structure determination. In this context, high quality crystals of In-ABDC MOF were not easily prepared from a ditopic 4,4'-azobenzenedicarboxylic acid (H2ABDC) through a thermal reaction in DMF or DEF. We successfully overcome this problem by employing a room-temperature ionic liquid, 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), and the resulting three-dimensional (3D) In-ABDC MOF, [EMIM][In(ABDC)2], was structurally characterized by X-ray diffraction. The 3D framework indicates a 4-connected uninodal net with Schläfli symbol of 66 (dia). The gas sorption properties of solvent-free In-ABDC MOF were also investigated in detail. |
E-mail |
bigtreeyun@naver.com |
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