Zinc(II) thione and selone complexes: The effect of metal redox activity on ligand-based oxidation
作者:Bradley S. Stadelman、Jaime M. Murphy、Amanda M. Owen、Rodrigo Castro-Ramírez、Haydan C. Smith、Caleb M. Cohen、Lynn X. Zhang、Craig A. Bayse、Colin D. McMillen、Noráh Barba-Behrens、Julia L. Brumaghim
DOI:10.1016/j.ica.2019.119379
日期:2020.3
Abstract Thione and selone ligands preferentially oxidize to protect redox active-metals from oxidation, but the effects of thione or selone coordination to a redox-inactive metal have not been examined. Therefore, Zn(II)-containing thione and selone complexes of the formulae Zn(L)2Cl2 and [Zn(L)4]2+ (L = N,N′-dimethylimidazole thione, dmit, and selone, dmise) have been synthesized and their properties
摘要硫和硒代配体优先氧化以保护氧化还原活性金属免于氧化,但尚未研究硫酮或硒酮配位对无氧化还原活性金属的影响。因此,式为Zn(L)2Cl2和[Zn(L)4] 2+(L = N,N'-二甲基咪唑硫酮dmit和selone,dmise)的含Zn(II)硫酮和selone配合物与类似的Fe(II)配合物相比,可以合成和合成其性质,包括电子光谱和DFT计算。Zn(dmit / dmise)2Cl2络合物也被H2O2氧化,导致dmit和dmise配体的氧化和CS / Se键裂解。电化学研究表明,在无氧化还原活性的Zn(II)配位后,基于dmit和dmise的氧化电位相对于类似的具有氧化还原活性的Fe(II)配合物有所降低,