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114th General Meeting of Korean Chemical Society De novo Synthesis of Metal-Organic Frameworks based on Terbium(Ⅱ) via Acidic Condition Control

Submission Date :
8 / 28 / 2014 , 14 : 03 : 23
Abstract Number :
114082809398
Presenting Type:
Poster Presentation
Presenting Area :
무기화학
Authors :
박정인, 정석, 김동욱, 나명수*
울산과학기술대학교(UNIST) 화학과, Korea
Assigned Code :
INOR.P-215 Assigend Code Guideline
Presenting Time :
10월 15일 (수요일) 16:00~19:00
Various Tb-metal-organic frameworks (MOFs) of different network structures were obtained in the same solvothermal reaction condition but with different amounts of acid. Tb-MOFs, (cation)2[Tb(btec)(formate)] (1), [Tb2(btec)(formate)2(H2O)2] (2) (cation)3[Tb6(Hbtec)2(btec)3(formate)3] (3) (where, H4btec = 1,2,4,5-benzene tetracarboxylic acid) could be prepared via one-pot de novo solvothermal reaction combining terbium(III) nitrate precursor and H4btec in DMF/MeOH mixed solvent. The amount of acid plays an important role in the formation of the network structures because it controls the amount of cation and formate generated in-situ. 3 is very stable in hydroscopic condition. The PXRD pattern of 3 stood in boiling water for 1 day is the same as that of the as-synthesized structure. 3 is even stable in both acidic and basic conditions. The structures, the properties and the potential applications of the Tb-MOFs will be discussed.