Heterometallic MOFs constructed from thiophene and furandicarboxylate ligands for heavy metal luminescence sensing

Aleksandr A. Sapianik*, Marina O. Barsukova, Konstantin A. Kovalenko, Denis G. Samsonenko, Vladimir P. Fedin

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    12 Scopus citations

    Abstract

    Rational design of a series of new heterometallic MOFs was carried out by the judicious choice of the corresponding synthesis conditions and ligand geometry. Three heterometallic MOFs (H2NMe2)[LiZn(dmf)(tdc)2]·DMF·H2O (1), [{LiZn}2Li2Zn2(dmf)6(tdc)6]·6DMF·H2O (2) and [Li2Zn2(dmf)2(fdc)3]·2DMF·2H2O (3) were obtained on the basis of the pre-synthesized pivalate complex [Li2Zn2(py)2(piv)6]. The angle between carboxylic groups greatly affects the possibility of retaining the initial tetranuclear node in the structure of the obtained MOFs. Compound3demonstrates permanent porosity with a calculated BET surface area value of 287 m2g−1. Compounds2and3are capable of heavy metal sorption from their nitrate solution, and a significant flare-up of the luminescence of the obtained inclusion compounds is observed, where the quantum yield of luminescence increases by an order of magnitude in the case of cadmium inclusion.

    Original languageEnglish (US)
    Pages (from-to)2807-2814
    Number of pages8
    JournalDalton transactions
    Volume50
    Issue number8
    DOIs
    StatePublished - Feb 28 2021

    Bibliographical note

    Funding Information:
    This study was supported by the Russian Science Foundation grant (no. 19-73-20087).

    Publisher Copyright:
    © The Royal Society of Chemistry 2021.

    ASJC Scopus subject areas

    • Inorganic Chemistry

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