A Tetrapodal Penta‐Carbene Ligand and Iron(III) Complex-Reference-Cited by-同舟云学术

A Tetrapodal Penta‐Carbene Ligand and Iron(III) Complex

Published:2023-04-14 Issue:20 Volume:26 Page:
ISSN:1434-1948
Container-title:European Journal of Inorganic Chemistry
language:en
Short-container-title:Eur J Inorg Chem

Author:

Gau Michael R.¹^ORCID,Kurta Peter²,Keller Taylor M.¹^ORCID,Scepaniak Jeremiah J.²^ORCID

Affiliation:

1. Department of Chemistry University of Pennsylvania 231 S. 34^th St. Philadelphia 19104 USA

2. Department of Chemistry Drexel University 32 S. 32^nd St. Philadelphia 19104 USA

Abstract

AbstractWe report the first tetrapodal pentadentate ligand composed of five N‐heterocyclic carbene donors. The proto‐ligand [CC4H5Me](OTf)3 (3) is formed in good yields from commercially available reagents. Upon removal of 5 proton equivalents from 3 with bulky non‐nucleophilic bases a dianionic penta‐carbene framework is provided in good yields as a dilithium complex CC4MeLi2 (4). Addition of FeCl3 to a solution of 4 formed in situ provides CC4MeFeCl (5) in moderate yield. Solution‐state magnetism measurements of 5 are consistent with a S=1/2 Fe(III) center. The related diamagnetic Fe(II) compound CC4MeFe (6) can be formed through reduction of 5 using KC8 though poor solubility characteristics have hampered its formation on a preparative scale and full characterization.

Funder

Drexel University

Publisher

Wiley

Subject

Inorganic Chemistry

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