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Metal-organic framework based on 4-(4,2′:6′,4″-terpyridin-4′-yl)benzoic acid: Structure, and catalytic activity for oxidative imination of alcohols with anilines
Autorzy
Rok wydania
2025
Czasopismo
Inorganic Chemistry Communications
Numer woluminu
176
Strony
114320/1-114320/9
DOI
10.1016/j.inoche.2025.114320
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A terpyridine/Zn-based metal–organic framework (MOF) with the formula [Zn2(terpyb)2(amtp)]n was prepared starting from 4-(4,2′:6′,4″-terpyridin-4′-yl)benzoic acid (terpyb) and aminoterephthalic acid (amtp) ligands and Zn(II) metal ions. Single-crystal X-ray crystallography confirmed the formation of a 3D triply interpenetrated structure containing distorted tetrahedral Zn(II) ions, each coordinated to one carboxylate oxygen and two N donor atoms from three symmetry-related terpyb ligands along with a carboxylate oxygen of the amtp anion. In turn, the terpyb ligands each bond to three metal atoms, while the amtp ligands bridge pairs of metal atoms. The structure of the MOF was also analyzed using powder X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The MOF exhibited high catalytic activity towards oxidative imination of alcohols with anilines, in 67–99% conversion, with 52–99% selectivity toward imine derivatives. Reactions occurred by the oxidative conversion of alcohols to the corresponding aldehydes, which underwent condensation with anilines to give imine derivatives.
Słowa kluczowe
ZN-based MOF, 4,2':6',4'-terpyridine, Amonoterephthalic acid, Alcohol imination
Adres publiczny
http://dx.doi.org/10.1016/j.inoche.2025.114320
Strona internetowa wydawcy
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