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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Compilation of Kinetic and Thermodynamic Structures of Zn-based Metal-Organic Frameworks

2020년 9월 3일 17시 00분 58초
INOR.P-123 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 21일(수) 17:00~17:30
Inorganic Chemistry
저자 및
Junsu Ha, Jaehwa Lee, Jaehui Kim1, Hoi Ri Moon*
Department of Chemistry, Ulsan National Institute of Science and Technology, Korea
1Chemistry, Ulsan National Institute of Science and Technology, Korea

Metal-organic frameworks (MOFs) are highly ordered porous materials constructed by coordination bonds between inorganic and organic species. Because the intrinsic properties of each framework are attributed to their structure, many researchers made the intensive efforts to extend structural diversity of MOFs and construct the desired structures. Reticular chemistry enables the prediction of the underlying topology of MOFs, which consist of a diverse combination of secondary building units (SBUs) and multi-topic linkers. However, in an actual synthetic environment, even the same pair of metal ion and linker results in totally different SBUs by structural complexities caused by a simple change in synthetic condition. For this reason, several studies try to demonstrate the relationship between this structural diversity and synthetic nature. The structure control has been widely studied to describe this issue, but most of the studies only focused on the effect of a single factor or provided a lack of the relationship between each synthetic parameter. Herein, we present the effect of synthetic temperature, metal/ligand ratio and solvent to control the kinetic or thermodynamic frameworks and the relationship between each synthetic parameters. The entire works were demonstrated by the selective crystallization of five different MOFs having different SBUs (Zn4O, 3, 4-paddle-wheel, Zn6), from one of the most well-known Zn4O SBU to thermodynamically unfavored 3-paddle-wheel SBU, and connectivity (3, 4, 6, 7, 10-points of extension) by systematically controlled syntheses using Zn(II) and 1,4-naphthalenedicarboxylic acid.