2017
DOI: 10.1002/zaac.201770213
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Cover Feature: Reproducible Synthesis of a Monofluorinated Trimesate: A Versatile Linking Ligand for the Construction of Lanthanide Coordination Polymers (Z. Anorg. Allg. Chem. 21/2017)

Abstract: Starting from the potassium salt of monofluorinated trimesic acid, K[H2mfBTC], and the respective lanthanide nitrates, Ln(NO3)3 · xH2O, 14 new coordination polymers were obtained and characterized by X‐ray single crystal structure analyses. Depending on the size of the Ln3+ cations three different structure types were observed with chain‐like (Ln = La‐Gd and Er‐Lu) or layer‐like (Ln = Tb‐Ho) polymeric units. The Eu3+ and Tb3+ compounds show an intense red and green luminescence. Details are discussed in the ar… Show more

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Cited by 3 publications
(7 citation statements)
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“…As described earlier fluorination of the phenyl rings in ortho position to the carboxylate group leads to an increased torsion angle between the latter and the plane of the phenyl ring due to repulsive interactions between the fluorine atom and the oxygen atoms of the carboxylate group and a reduced aromatic character of the C(phenyl)-COObond due to the electron withdrawing fluorine substituent. [7,10,[17][18][19] For UoC-1(1F) this torsion angle was found to be 28.9(9)°and thus significantly larger than in HKUST-1 and MOF-505 (cp. Table 2).…”
Section: Resultsmentioning
confidence: 99%
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“…As described earlier fluorination of the phenyl rings in ortho position to the carboxylate group leads to an increased torsion angle between the latter and the plane of the phenyl ring due to repulsive interactions between the fluorine atom and the oxygen atoms of the carboxylate group and a reduced aromatic character of the C(phenyl)-COObond due to the electron withdrawing fluorine substituent. [7,10,[17][18][19] For UoC-1(1F) this torsion angle was found to be 28.9(9)°and thus significantly larger than in HKUST-1 and MOF-505 (cp. Table 2).…”
Section: Resultsmentioning
confidence: 99%
“…For the enlarged torsion angles steric effects as well as electronic effects [reduced aromatic character of the C(phenyl)-COObond] are discussed. [7,10,[17][18][19] In CuMBTC and CuEBTC, methyl and ethyl groups, respectively, were introduced in ortho position to the carboxylate groups of a trimesate ligand. [22] For these MOFs also comparable large torsion angles were reported ( Table 2).…”
Section: Discussionmentioning
confidence: 99%
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“…Several years ago we started to synthesize fluorinated aromatic carboxylic acids, [7,8] which -in a next step -were used to synthesize new CPs and MOFs with these linkers. [8][9][10][11][12][13][14][15][16][17] With respect to their structural chemistry it is a remarkable feature that the torsion angle between the phenyl ring and the carboxylate group is no longer close to 0°as found in most MOFs and CPs with non-fluorinated ligands, but significantly increased especially for fluoro substituents in α position and even more for perfluorinated ligands. [9,[18][19][20][21] In this respect, it seems to be worthwhile to examine how the structural chemistry of uranium-based CPs and MOFs develops, when fluorinated aromatic carboxylate ligands are introduced.…”
Section: Introductionmentioning
confidence: 99%