Varying the secondary coordination sphere: synthesis of cobalt and iron complexes of a tripodal ligand featuring two hydrogen-bond donors or acceptors

Courtney L. Ford, Tabitha J. Miller, Yun Ji Park, Niknaz Iranmanesh, Danielle L. Gray, Alison R. Fout

Research output: Contribution to journalArticlepeer-review

Abstract

In order to further understand the role of the secondary coordination sphere in biomimetic systems, a series of cobalt(II) and iron(II) complexes bearing the non-heme bis(5-cyclohexyliminopyrrol-2-ylmethyl)-2-pyridylmethylamine (PyN(piCy)2) ligand were synthesized. This platform, based on the tris(5-cyclohexylimino-pyrrol-2-ylmethyl)amine (N(piCy)3) platform, reduces the number of possible hydrogen-bonding interactions from three (in N(piCy)3) to two, while maintaining the ability of the ligand to datively coordinate to a metal center. The secondary coordination spheres of the family of dative and anionic cobalt(II) and iron(II) complexes were characterized in the solid-state using X-ray crystallography and IR spectroscopy. Moreover, oxidation of an iron(II) complex was explored to compare its reactivity to that of the analogous iron(II) complex of the N(piCy)3 platform.

Original languageEnglish (US)
Pages (from-to)2195-2208
Number of pages14
JournalJournal of Coordination Chemistry
Volume73
Issue number15
DOIs
StatePublished - Aug 2 2020

Keywords

  • Cobalt
  • hydrogen-bonding ligand
  • iron
  • manganese
  • oxygen activation
  • tautomerization

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Varying the secondary coordination sphere: synthesis of cobalt and iron complexes of a tripodal ligand featuring two hydrogen-bond donors or acceptors'. Together they form a unique fingerprint.

Cite this