Construction of poly-iodine aromatic carboxylate Mn/Co frameworks and iodine adsorption behavior

Two poly-iodine aromatic tricarboxylate complexes: {(Me 2 NH 2 )[Mn(TIBTC)(2, 2'-bipy)(H 2 O)]} n ( 1 ) and {(Me 2 NH 2 )[Co(TIBTC)(DMA)]} n ( 2 ) (DMA =  N , N -dimethylacetamide), were designed and synthesized by the hydrothermal synthetic methods (TIBTC = 2, 4, 6-triiodo-1, 3, 5-benzenetrica...

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Bibliographic Details
Published in:Transition metal chemistry (Weinheim) 2021-12, Vol.46 (8), p.633-644
Main Authors: Cai, He-Qun, Liu, Chun-Hong, Xin, Yu, Wang, Chen, Bai, Feng-Ying, Sun, Li-Xian, Xing, Yong-Heng
Format: Article
Language:English
Subjects:
Adsorption
Catalysis
Chemistry
Chemistry and Materials Science
Crystal structure
Crystals
Curve fitting
Cyclohexane
Dimethyl acetamide
Hydrogen bonds
Inorganic Chemistry
Iodine
Organometallic Chemistry
Physical Chemistry
Single crystals
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Summary:Two poly-iodine aromatic tricarboxylate complexes: {(Me 2 NH 2 )[Mn(TIBTC)(2, 2'-bipy)(H 2 O)]} n ( 1 ) and {(Me 2 NH 2 )[Co(TIBTC)(DMA)]} n ( 2 ) (DMA =  N , N -dimethylacetamide), were designed and synthesized by the hydrothermal synthetic methods (TIBTC = 2, 4, 6-triiodo-1, 3, 5-benzenetricarboxylic acid). Complexes were characterized by microanalysis. The crystal structures of complexes 1 and 2 were determined by X-ray single-crystal diffraction. Complex 1 is a 3D network supramolecular network structure connected by the hydrogen bonds, and complex 2 is a 3D network structure. To explore their functional properties, we first investigated the adsorption capacity of complexes 1 and 2 for iodine capture in cyclohexane solution. The maximum adsorption capacity of complex 2 is 125 mg/g. Meanwhile, the adsorption kinetic curves fitting showed that complexes 1 and 2 all conformed to the pseudo-second-order curves.
ISSN:0340-4285
1572-901X
DOI:10.1007/s11243-021-00481-5