化学
配体(生物化学)
吸附
吡嗪
哌嗪
金属
溶剂
吡啶
碘
二羧酸
分子
无机化学
药物化学
高分子化学
立体化学
有机化学
受体
生物化学
作者
Faezeh Moghzi,Janet Soleimannejad,Hamid Emadi,Jan Janczak
出处
期刊:Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
[Wiley]
日期:2020-08-19
卷期号:76 (5): 779-788
被引量:4
标识
DOI:10.1107/s2052520620009336
摘要
Four new praseodymium(III) metal–organic compounds varying in dimensionality from 0D to 3D have been designed and synthesized based on N-heterocyclic polycarboxylic acids, including pyridine-2,6-dicarboxylic acid (H 2 pydc) and pyrazine-2,3-dicarboxylic acid (H 2 pzdc). Altering the concentration of piperazine (pip, ancillary ligand) enables control over the dimensionality of the compound by switching between the 0D [H 2 pip][Hpip][Pr(pydc) 3 ]·4H 2 O ( I ) and the 1D {[Pr(pydc)(Hpydc)(H 2 O) 2 ]·4H 2 O} n ( II ) coordination polymer (CP). Upon replacing H 2 pydc with H 2 pzdc, CP II is converted to the 2D CP [Pr(pzdc)(Hpzdc)(H 2 O) 3 ] n ( III ) and using the metalloligand [Zn(Hpzdc) 2 (H 2 O) 2 ] 2− , the 3D heterometallic CP {[Pr 2 Zn(pzdc) 4 (H 2 O) 6 ]·2H 2 O} n ( IV ) is formed. Compound IV shows high stability in the absence of uncoordinated solvent molecules and is stable up to 400°C, even in the presence of humidity. Therefore, IV was utilized for iodine adsorption in the vapour phase and in the presence of humidity. The results confirm the remarkable potential of IV for reversible adsorption of iodine vapour.
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