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A new 3D nickel(II) framework composed of large rings: Ionothermal synthesis and crystal structure |
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| Authors: | Ling Xu Young-Uk Kwon |
| Institution: | a Department of Chemistry, BK-21 School of Chemical Materials Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea b Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea c SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746, Republic of Korea |
| Abstract: | Ionothermal reaction between Ni2+ and 1,3,5-benzentricarboxylic acid (H3BTC) with AMI]Cl (AMI=1-amyl-3-methylimidazolium) as the reaction medium produced a novel 3D mixed-ligand metal-organic framework AMI]Ni3(BTC)2(OAc)(MI)3] (1) (MI=1-methylimidazole) with AMI]+ incorporated in the framework. The framework is formed by connecting 2D planes, made up of 32- and 48-membered rings, through 1D chains composed of 32-membered rings. The two BTC3− ligands in 1 show the same connectivity mode with two bidentate and one μ2 bridging carboxylic groups. This is a new connectivity mode to the already existing 17 in the Ni-BTC system. The role of MI and AMI]Cl in the structure formation is discussed. |
| Keywords: | Metal-organic framework Mixed ligand Ionic liquid Ionothermal reaction Crystal structure |
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