Urotropine as a ligand for the efficient synthesis of metal-organic frameworks

Autor: Denis G. Samsonenko, Konstantin A. Kovalenko, T. V. Nokhrina, Danil N. Dybtsev, Marina O. Barsukova, Sergey A. Sapchenko, Vladimir P. Fedin
Rok vydání: 2020
Předmět:
Zdroj: Russian Chemical Bulletin. 69:461-469
ISSN: 1573-9171
1066-5285
Popis: Urotropine is a cheap and promising ligand for the synthesis of metal-organic frameworks containing uncoordinated nitrogen atoms. The reactions between urotropine, dicarboxylic acids, and zinc(II) or cobalt(II) salts were studied. The optimization of the reaction conditions allows the synthesis of three urotropine-containing metal-organic frameworks, [Zn(ur)(abdc)]• •DMF•H2O (1, ur is urotropine, abdc2− is 4,4´-diazobiphenyldicarboxylate, DMF is N,N-dimethylformamide), (CH3ur)[NaCo(dmf)2(bptc)] (2, CH3ur+ is N-methylhexa methyl enetetrammonium, bptc4− is 2,2´,4,4´-biphenyltetracarboxylate), and [Co4(dmf)(ur)2(ndc)4]•5DMF (3, ndc2− is 2,6-naphthalenedicarboxylate). These compounds were structurally characterized and their thermal and adsorption properties were studied. In the three compounds, urotropine performs diff erent functions, acting as a monodentate ligand (compound 1), a bidentate ligand (compound 3), or a methylammonium counterion (compound 2).
Databáze: OpenAIRE
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