Compound 54: Bis((4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-yl)oxy)copper polymer

Created: 2022-10-12 09:59

Last modified: 2024-06-25 09:30

License: Creative Commons: Public Domain Dedication 1.0

Funding: (none given)

Description

Crystal structure, NMR and IR data for Bis((4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-yl)oxy)copper polymer (54): Cu(OAc)2•H2O (61.0 mg, 0.308 mmol, 1.00 equiv) was added with stirring to pyrazolone 6 (143 mg, 0.616 mmol, 2.00 equiv) in EtOH (3.5 mL) at 79 °C. After 2 h at reflux, the mixture was cooled to room temperature, and the resultant precipitate was collected by filtration and dried in vacuo. Cu-pyrazolone complex 54 (141 mg, 0.268 mmol, 88%) was obtained as a green-brown solid. Crystals suitable for X-ray crystallography were obtained by slow evaporation from an EtOH solution of complex 54. IR (Diamond-ATR, neat) νmax (cm-1) = 1615, 1593, 1382, 1554, 1498, 1457, 1438, 1372, 1338, 1262, 1126, 1086, 1014, 950, 905, 775, 747, 686. HRMS (ES-ToF) m/z: [M – Solvent + H]+ calc. for (C24H23CuN4O6)+: 526.0908, found: 526.0907. m.p.: 239 – 241 °C (EtOH). Anal. Calcd for C24H22CuN4O6: C, 54.80; H, 4.22; N, 10.65. Found: C, 54.37; H, 4.17; N, 10.58. Alternatively Anal. Calcd for C24H22CuN4O6 ∙ 0.05 CuO: C, 54.39; H, 4.18; N, 10.57. Found: C, 54.37; H, 4.17; N, 10.58.

Member of collection / collaboration

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

Members

DOI	Description
10.14469/hpc/11505	IR data for Compound 54.
10.14469/hpc/11422	Primary crystal structure data for Compound 54. Bis((4-(ethoxycarbonyl)-1-phenyl-1H-pyrazol-5-yl)oxy)copper polymer

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