Scholarlink

<p>Iron(III) complexes with potentially hexa- and heptadentate oligothioether salicylaldiminates were synthesized. Electron spin resonance and Mössbauer spectra reveal the existence of spin crossover effects between 77 and 300 K. The compounds exhibit solvatochromic behaviour. Their cyclic voltammetry shows reversible one-electron electrochemical processes attributed to the iron(III)/iron(II) couple, while insertion of the additional (ether or thioether) donor atom into the ligand structure causes an anodic shift of the <i>E</i><sub>1/2</sub>, the thioether sulfur-atom substantially so. Evidence is presented for heptacoordination in the unique complex entailing the unusual heptadentate N<sub>2</sub>O<sub>2</sub>S<sub>3</sub> donor set.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Spin Crossover and Redox Behaviour of Iron(III) Complexes with Hexa- and Heptadentate Thioether Salicylaldiminate Ligands

  • 期刊论文

  • 发表日期：

    2025年9月1日

查看全文
  • V. V. Pavlishchuk,
  • A. W. Addison,
  • V. Chechersky,
  • N. S. Kopelev,
  • L. K. Thompson

摘要

Iron(III) complexes with potentially hexa- and heptadentate oligothioether salicylaldiminates were synthesized. Electron spin resonance and Mössbauer spectra reveal the existence of spin crossover effects between 77 and 300 K. The compounds exhibit solvatochromic behaviour. Their cyclic voltammetry shows reversible one-electron electrochemical processes attributed to the iron(III)/iron(II) couple, while insertion of the additional (ether or thioether) donor atom into the ligand structure causes an anodic shift of the E1/2, the thioether sulfur-atom substantially so. Evidence is presented for heptacoordination in the unique complex entailing the unusual heptadentate N2O2S3 donor set.