Heteroleptic Binuclear Pivalate-, Pyrazolate-Bridged Copper(II) Complexes with 1,10-Phenanthroline

IF 1.1 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Coordination Chemistry Pub Date : 2025-02-09 DOI:10.1134/S1070328424600736

M. A. Uvarova, M. A. Shmelev, S. E. Nefedov

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Abstract

The reaction of the mononuclear complex [PhenCu(OOC^tBu)₂(H₂O)] (I) with [PhenCu(CH₃CN)(Otf)₂] (Phen = 1,10-phenanthroline, Otf = CF₃S\({\text{O}}_{3}^{ - }\)) in dichloromethane at room temperature gave the binuclear complex [Phen₂Cu₂(µ-OOC^tBu)₂(Otf)₂] (II). The reaction of II with pyrazole (PzH) involved the displacement of the triflate anions to the outer sphere and gave the ionic complex [Phen₂Cu₂(µ-OOC^tBu)₂(PzH)₂](Otf)₂ (III), while a similar reaction with 3,5-bis(trifluoromethyl)pyrazole ((CF₃)₂PzH) was accompanied by its deprotonation and gave the heteroleptic complex [Phen₂Cu₂(µ-OOC^tBu)(µ-(CF₃)₂Pz)(µ-Otf)]Otf (IV). Compounds I–IV were characterized by X-ray diffraction (CCDC nos. 2332399 (I), 2332400 (II), 2332402 (III), and 2332401 (IV)), IR spectroscopy, and elemental analysis. According to X-ray diffraction data, the copper atoms in I–IV occur in a square pyramidal environment. The crystal packing of complexes I–III involves stacking interactions between phenanthroline molecules giving rise to supramolecular chains.

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杂电双核private -， pyrazolate -偶联铜(II) - 1,10-菲罗啉配合物

单核配合物[PhenCu(OOCtBu)2(H2O)] (I)与[PhenCu(CH3CN)(Otf)2] （Phen = 1,10-菲罗林，Otf = CF3S \({\text{O}}_{3}^{ - }\)）在室温下在二氯甲烷中反应得到双核配合物[Phen2Cu2（µ-OOCtBu）2(Otf)2] （II）。II与吡唑（PzH）的反应使三酸盐阴离子向外球位移，得到离子配合物[Phen2Cu2（µ-OOCtBu）2(PzH)2](Otf)2 （III）。与3,5-二（三氟甲基）吡唑（(CF3)2PzH）发生类似的脱质子反应，得到异电络合物[Phen2Cu2（µ- ooctbu）（µ-(CF3)2Pz）（µ-Otf）]Otf （IV）。化合物I - IV通过x射线衍射(CCDC编号2332399 （I)、2332400 （II）、2332402 （III）和2332401 (IV)）、红外光谱和元素分析进行了表征。根据x射线衍射数据，I-IV中的铜原子呈方锥体环境。配合物I-III的晶体填充涉及菲罗啉分子之间的堆叠相互作用，从而产生超分子链。

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来源期刊

Russian Journal of Coordination Chemistry 化学-无机化学与核化学

CiteScore

2.40

自引率

15.80%

发文量

审稿时长

7.2 months

期刊介绍： Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.