Synthesis and characterization of Manganese(III) tetraphenylporphyrinato chloride immobilized on multi-wall carbon nanotubes, and its application as an efficient and reusable catalyst in the biomimetic oxidation of sulfides: A comprehensive experimental and computational study
作者:Mostafa Khajehzadeh、Majid Moghadam、Pardis Noorbakhsh
DOI:10.1016/j.molstruc.2020.128980
日期:2021.1
was immobilized on multiwall carbon nanotubes by covalent bonding. The structures of [Mn(TPP)Cl]@AP-MWC catalyst was confirmed by FT-IR, UV–vis spectroscopic techniques and scanning electron microscopy (SEM). Then, the ability of this novel heterogeneous catalyst was investigated in the oxidation of linear and cyclic sulfides under magnetic stirring conditions. Also, the DFT computational method (B3PW91
摘要 在本研究中,四苯基卟啉氯化锰 (III) 通过共价键固定在多壁碳纳米管上。[Mn(TPP)Cl]@AP-MWC催化剂的结构通过FT-IR、UV-vis光谱技术和扫描电子显微镜(SEM)得到证实。然后,研究了这种新型多相催化剂在磁力搅拌条件下氧化线性和环状硫化物的能力。此外,DFT 计算方法(具有 LanL2DZ 基组的 B3PW91 方法)用于进一步分析该催化剂。基于此方法,分子几何形状和振动频率、化学位移、吸收波长、超共轭相互作用、电子表面之间的电子跃迁、正负电荷、HOMO 和 LUMO 间隙、波长 (λ)、化学势 (μ) , 碳纳米管和[Mn(TPP)Cl]@AP-MWCNT催化剂最强电子跃迁的电离能(IE)、整体硬度(η)、整体柔软度(S)、亲电指数(ω)和电负性(α)被计算。然后在硫化物的仿生氧化中研究了该催化剂的活性和效率。[Mn(TPP)Cl]@AP-MWC多相催化剂具有