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Two Tb-metal organic frameworks with different metal cluster nodes for C2H2/CO2 separation.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 4/14/2021, Vol. 5 Issue 14, p4932-4935, 4p
- Publication Year :
- 2021
-
Abstract
- Through regulating the reaction solvent and temperature, two Tb-based metal–organic frameworks, ((CH<subscript>3</subscript>)<subscript>2</subscript>NH<subscript>2</subscript>)<subscript>2</subscript>[Tb<subscript>9</subscript>(μ<subscript>3</subscript>-OH)<subscript>8</subscript>(μ<subscript>2</subscript>-OH)<subscript>3</subscript>(PTB)<subscript>6</subscript>]·(DMF)<subscript>14</subscript>·(H<subscript>2</subscript>O)<subscript>19</subscript> (1) and ((CH<subscript>3</subscript>)<subscript>2</subscript>NH<subscript>2</subscript>)<subscript>3</subscript>{[Tb<subscript>9</subscript>(μ<subscript>3</subscript>-O)<subscript>2</subscript>(μ<subscript>3</subscript>-OH)<subscript>12</subscript>(H<subscript>2</subscript>O)<subscript>6</subscript>][Tb<subscript>3</subscript>(μ<subscript>3</subscript>-O)(HCO<subscript>2</subscript>)<subscript>3</subscript> (PTB)<subscript>6</subscript>]}·(DMF)<subscript>12</subscript>·(H<subscript>2</subscript>O)<subscript>7</subscript> (2) (H<subscript>3</subscript>PTB = pyridine-2,4,6-tribenzoic acid), have been synthesized. Structural analysis showed that the cluster node of 1 is a Tb<subscript>9</subscript> cluster, while 2 contains two different nodes of a Tb<subscript>3</subscript> cluster and a Tb<subscript>9</subscript> cluster, which leads to their different pore structures and may potentially separate C<subscript>2</subscript>H<subscript>2</subscript>/CO<subscript>2</subscript>. Gas adsorption demonstrates that both MOFs can separate C<subscript>2</subscript>H<subscript>2</subscript> and CO<subscript>2</subscript>, but 2 has a more optimized pore environment than 1 and can exhibit better selective separation of C<subscript>2</subscript>H<subscript>2</subscript>/CO<subscript>2</subscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 5
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 149842497
- Full Text :
- https://doi.org/10.1039/d1dt00413a