Series of Metal Organic
Frameworks Assembled from
Ln(III), Na(I), and Chiral Flexible-Achiral Rigid Dicarboxylates Exhibiting
Tunable UV–vis–IR Light Emission
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Abstract
Two series of isoreticular chiral metal–organic
frameworks
assembled from Ln(III) (Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), Na(I),
and chiral flexible-achiral rigid dicarboxylate ligands, formulated
as [NaLn(Tart)(BDC)(H<sub>2</sub>O)<sub>2</sub>] (<b>S1</b>)
and [NaLn(Tart)(biBDC)(H<sub>2</sub>O)<sub>2</sub>] (<b>S2</b>) (H<sub>2</sub>Tart = tartaric acid; H<sub>2</sub>BDC = terephthalic
acid; H<sub>2</sub>biBDC = biphenyl-4,4′-dicarboxylic acid),
were obtained as single phases under hydrothermal conditions. The
compounds have been studied by single-crystal and powder X-ray diffraction,
thermal analyses (TG-MS and DSC), vibrational spectroscopy (FTIR),
scanning electron microscopy (SEM-EDX), elemental analysis, and X-ray
thermodiffractometry. The catalytic activity has been also investigated.
The photoluminescence properties of selected compounds have been investigated,
exhibiting room temperature tunable UV–vis–IR light
emission
