Investigation of protonation induced metal-to-metal electron transfer in a cyano-bridged Mn <sup>III</sup> –Fe <sup>III</sup> dinuclear complex
Reaction of [Mn(salophen)Cl] {salophen<sup>2-</sup> = <i>o</i>-phenylenediamine bis(salicylidenaminato)} with a tricyano Fe(III) precursor complex, [Fe(bbp)(CN)<sub>3</sub>]<sup>2-</sup> {H<sub>2</sub>bbp = bis(2-benzimidazolyl)pyridine}, affords a dinuclear cyano-bridged heterometallic Mn<sup>III</sup>-(μ-NC)-Fe<sup>III</sup> fragment in the complex salt [Mn(salophen)(H<sub>2</sub>O)<sub>2</sub>][Mn(salophen)(H<sub>2</sub>O)(μ-NC)Fe(bbp)(CN)<sub>2</sub>]·4H<sub>2</sub>O (1). The title compound shows field-induced slow relaxation of magnetization below 2.8 K. Possibility of a protonation induced metal-to-metal electron transfer (MMET) process in the parent complex is probed by UV-visible, electrochemical, and electron spin resonance studies.
Authors
- Rajendiran Marimuthu (ORCID: https://orcid.org/0000-0002-8177-239X)
- Nayanmoni Gogoi (ORCID: https://orcid.org/0000-0001-7398-6200)
- Rodrigue Lescouëzec (ORCID: https://orcid.org/0000-0003-3510-5112)
- Anup Choudhury (ORCID: https://orcid.org/0000-0003-3758-3783)
- Benjamin Kintzel (ORCID: https://orcid.org/0009-0005-9761-6390)
- Prashurya Pritam Mudoi (ORCID: https://orcid.org/0000-0003-2583-1487)
- Winfried Plass (ORCID: https://orcid.org/0000-0003-3473-9682)
- Oluseun Akintola (ORCID: https://orcid.org/0000-0002-6912-2036)
- Yanling Li (ORCID: https://orcid.org/0000-0002-9581-7608)
- Niku Ahmed
Institutions
- Tezpur University (IN)
- Centre National de la Recherche Scientifique (FR)
- Indian Institute of Technology Bombay (IN)
- Schiller International University (FR)
- Sorbonne Université (FR)
- Institut Parisien de Chimie Moléculaire (FR)
- Dibrugarh University (IN)
- Friedrich Schiller University Jena (DE)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt01885d
- Primary Topic
- Magnetism in coordination complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00