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Variable Dimensionality of Europium(III) and Terbium(III) Coordination Compounds with a Flexible Hexacarboxylate Ligand.

ABSTRACT: A reaction between 4,4',4″-(benzene-1,3,5-triyltris(oxy))triphthalic acid (H6L) and lanthanide(III) nitrates (Ln = Eu3+, Tb3+) in water under the same conditions gave a molecular coordination compound [Tb(H4.5L)2(H2O)5]∙6H2O in the case of terbium(III) and a one-dimensional linear coordination polymer {[Eu2(H3L)2(H2O)6]∙8H2O}n in the case of europium(III). The crystal structures of both compounds were established by single-crystal X-ray diffraction, and they were further characterized by powder X-ray diffraction, thermogravimetric analysis and infrared spectroscopy. The compounds demonstrated characteristic lanthanide-centered photoluminescence. The lanthanide-dependent dimensionality of the synthesized compounds, which are the first examples of the coordination compounds of hexacarboxylic acid H6L demonstrates its potential as a linker for new coordination polymers.

SUBMITTER: Yu X 

PROVIDER: S-EPMC9696389 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Variable Dimensionality of Europium(III) and Terbium(III) Coordination Compounds with a Flexible Hexacarboxylate Ligand.

Yu Xiaolin X   Pavlov Dmitry I DI   Ryadun Alexey A AA   Potapov Andrei S AS   Fedin Vladimir P VP  

Molecules (Basel, Switzerland) 20221114 22

A reaction between 4,4',4″-(benzene-1,3,5-triyltris(oxy))triphthalic acid (H<sub>6</sub>L) and lanthanide(III) nitrates (Ln = Eu<sup>3+</sup>, Tb<sup>3+</sup>) in water under the same conditions gave a molecular coordination compound [Tb(H<sub>4.5</sub>L)<sub>2</sub>(H<sub>2</sub>O)<sub>5</sub>]∙6H<sub>2</sub>O in the case of terbium(III) and a one-dimensional linear coordination polymer {[Eu<sub>2</sub>(H<sub>3</sub>L)<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>]∙8H<sub>2</sub>O}<sub>n</sub> in the  ...[more]

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