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

10 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

ASJC Scopus subject areas

  • Inorganic Chemistry

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