Compound 74: Bis(4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-olate)dioxouranium

DOI: 10.14469/hpc/11748 Metadata

Created: 2022-11-08 06:44

Last modified: 2024-11-22 09:39

Author: Henry Rzepa

License: Creative Commons: Public Domain Dedication 1.0

Funding: (none given)

Description

Bis(4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-olate)dioxouranium (74): UO2(NO3)2•6H2O (200 mg, 0.398 mmol, 1.00 equiv) was added with stirring to pyrazolone 6 (185 mg, 0.797 mmol, 2.00 equiv) and pyridine (3.00 mL) in EtOH (7 mL) at 79 °C. The mixture was heated at reflux for 16 h, cooled to room temperature. Et2O (30 mL) and hexanes (20 mL) were added and the precipitate of pyridinium nitrate was removed by filtration. Uranyl-pyrazolone complex 74 (118 mg, 0.133 mmol, 33%) was obtained as a fluorescent-yellow solid by slow evaporation from the ethanolic pyridine filtrate. IR (Diamond-ATR, neat) νmax (cm-1) = 1621, 1596, 1532, 1496, 1443, 1437, 1324, 1249, 1157, 1086, 952, 926, 698.

Member of collection / collaboration

DOIDescription
10.14469/hpc/10386 Syntheses and Characterization of Main Group, Transition Metal, Lanthanide and Actinide Complexes of Bidentate Acylpyrazolone Ligands

Members

DOIDescription
10.14469/hpc/12402 Crystal data for compound 74.

Edit