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• W4220783433 endingPage "4908" @default.
• W4220783433 startingPage "4895" @default.
• W4220783433 abstract "Microwave-assisted reactions in DMSO, between a hexa-lanthanide octahedral complex ([Ln6(μ6-O)(μ3-OH)8(NO3)6(H2O)12·2NO3·2H2O] with Ln = Nd-Yb plus Y) and either 3-halogenobenzoic acid (hereafter symbolized by 3-xbH with x = f or c for fluoro or chloro, respectively) or 4-halogenobenzoic acid (hereafter symbolized by 4-xbH with x = f, c, or b for fluoro, chloro, or bromo, respectively), lead to 1D lanthanide coordination polymers. These coordination polymers are almost iso-reticular. The crystal structure is described on the basis of the coordination polymer with chemical formula [Tb(4-fb)3(DMSO)(H2O)2·DMSO]∞ obtained from 4-fluorobenzoic acid (4-fbH) and the Tb3+-based octahedral complex: It crystallizes in the triclinic system, space group P1̅ (n°2), with the following cell parameters: a = 9.8561(9) Å, b = 10.5636(9) Å, c = 15.1288(15) Å, α = 100.840(3)°, β = 95.552(3)°, γ = 110.482(3)°, V = 1426.4(3) Å3, and Z = 2. It can be described on the basis of 1D molecular chains. Luminescence properties of the Tb and Eu derivatives have been measured and compared vs the halogeno-function and its position (meta or para). Some molecular alloys have also been prepared to estimate the strength of the intermetallic energy transfers. To confirm that the hexa-nuclear complexes (and not the halogenated ligand) have a structuring effect for the formation of the straight chain-like molecular motif, another coordination polymer with chemical formula [Tb(4-npa)3DMSO·DMSO·H2O]∞ where 4-npaH symbolizes 4-nitro-phenyl-acetic acid has been prepared. It crystallizes in the triclinic system, space group P1̅ (n°2) with the following cell parameters: a = 7.8784(8) Å, b = 14.8719(16) Å, c = 15.2753(17) Å, α = 73.612(4)°, β = 86.406(4)°, γ = 83.104(4)°, V = 1703.8(3) Å3, and Z = 2. Its crystal structure can be described on the basis of a molecular motif that is similar to the one observed in the five previous crystal structures which confirms the structuring effect of the hexa-nuclear complexes." @default.
• W4220783433 created "2022-04-03" @default.
• W4220783433 creator A5001807981 @default.
• W4220783433 creator A5030387915 @default.
• W4220783433 creator A5042432005 @default.
• W4220783433 creator A5049143428 @default.
• W4220783433 creator A5049758382 @default.
• W4220783433 creator A5063224624 @default.
• W4220783433 creator A5070029515 @default.
• W4220783433 date "2022-03-15" @default.
• W4220783433 modified "2023-10-16" @default.
• W4220783433 title "Synthesis, Crystal Structure, and Luminescence Properties of the Iso-Reticular Series of Lanthanide Coordination Polymers Synthesized from Hexa-Lanthanide Molecular Precursors" @default.
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