Novel redox active rhodium(iii) complex with bis(arylimino)acenaphthene ligand: synthesis, structure and electrochemical studies

Artem L. Gushchin, Nikolai F. Romashev, Alexandra A. Shmakova, Pavel A. Abramov, Maxim R. Ryzhikov, Iakov S. Fomenko, Maxim N. Sokolov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

(Rhodium trichloride reacts with 1,2-bis[(2,6-diisopropylphenyl)imino] acenaphthene (dpp-bian) to afford new octahedral complex mer-[Rh(dpp-bian)(H2O)Cl3]·CH2Cl2. The CV of mer-[Rh(dpp-bian)(H2O)Cl3] in MeCN shows an irreversible reduction that corresponds to the RhIII/RhI couple, followed by reversible or quasi-reversible cathodic waves assigned to reduction of the dpp-bian ligand. DFT calculations confirm the assignment of the redox processes and predict the elimination of two chloride ligands from axial positions upon two-electron reduction of mer-[Rh(dpp-bian)(H2O)Cl3] with the formation of a RhI square-planar complex [RhI(dpp-bian)(H2O)Cl].

Original languageEnglish
Pages (from-to)81-83
Number of pages3
JournalMendeleev Communications
Volume30
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • acenaphthene-1,2-diimines
  • crystal structure
  • cyclic voltammetry
  • DFT calculations
  • electrocatalyzed CO2 reduction
  • rhodium
  • COPPER(I)
  • SPECTROSCOPY
  • REDUCTION
  • VALENCE TAUTOMERISM
  • CATALYSTS

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