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C6H5BrFNO3, orthorhombic, P212121 (no. 19), a = 3.9894(4) Å, b = 13.6128(11) Å, c = 14.7495(12) Å, V = 801.00(12) Å3, Z = 4, Rgt(F) = 0.0213, wRref(F2) = 0.0465, T = 150(2) K.

C6H6BrNO3, triclinic, P1̄ (no. 2), a = 7.0407(5) Å, b = 7.1597(6) Å, c = 8.3808(7) Å, α = 75.844(4)°, β = 94.562(4)°, γ = 76.306(4)°, V = 373.61(5) Å3, Z = 4, Rgt(F) = 0.0205, wRref(F2) = 0.0527, T = 150(2) K.

Two new isostructural lanthanide(III) coordination polymers based on an unreported zwitterionic ligand, namely, [Ln(ox)(L)]n (ox = oxalate, HL = N,N' -dipropionic acid imidazolium, Ln = Eu or La), are synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, infrared spectroscopy, powder X-ray diffraction, and thermogravimetric analysis. The fluorescence properties of the europium coordination polymer are investigated. In addition, the europium-based coordination polymer is utilized for specific sensing of UO22+ ions, showing high selectivity, a fast response time (8 min) and high sensitivity with noticeable quenching (K sv = 6.19 × 104 M−1) and limit of detection of 1.95 µM. [ABSTRACT FROM AUTHOR]

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Copyright of Zeitschrift für Kristallographie / New Crystal Structures is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

C8H7NO4, monoclinic, C2/c (no. 15), a = 4.9752(11) Å, b = 14.167(3) Å, c = 10.999(2) Å, β = 99.066(5)°, V = 765.6(3) Å3, Z = 4, Rgt(F) = 0.0571, wRref(F2) = 0.1630, T = 150(2) K. [ABSTRACT FROM AUTHOR]

C6H6BrNO3, triclinic, P1̄ (no. 2), a = 7.0407(5) Å, b = 7.1597(6) Å, c = 8.3808(7) Å, α = 75.844(4)°, β = 94.562(4)°, γ = 76.306(4)°, V = 373.61(5) Å3, Z = 4, Rgt(F) = 0.0205, wRref(F2) = 0.0527, T = 150(2) K. [ABSTRACT FROM AUTHOR]