Iron(II) Complexes of an Anionic Bis(ylide)diphenylborate Ligand
Abstract
Double deprotonation of the salt [Ph2B(PMe3)2][OTf] provides access to a bis(ylide)diphenylborate ligand that is readily transferred in situ to iron(II). Depending on the reaction stoichiometry, both the “ate” complex [Ph2B(Me2PCH2)2Fe(μ-Cl)2Li(THF)2] and the homoleptic complex [Ph2B(Me2PCH2)2]2Fe can be prepared from FeCl2(THF)1.5. Further reaction of with FeCl2(THF)1.5 produces the chloride-bridged dimer [Ph2B(Me2PCH2)2Fe(μ-Cl)2Fe(CH2PMe2)2BPh2]. Attempts to reduce or alkylate provide as the only isolable product, likely a consequence of the low steric hindrance of the bis(ylide)diphenylborate ligand. On the other hand, reaction of with the strong field ligand CNtBu provides the six-coordinate, diamagnetic complex [Ph2B(Me2PCH2)2Fe(CNtBu)4][Cl]. Here, the electronic structure calculations for the bis(ylide)diphenylborate ligand and homoleptic complex suggest that the C(ylide) atoms are strong σ-donors with little π-bonding character. These initial results suggest the potential for this bis(ylide)diphenylborate ligand in coordination chemistry.
- Publication Date:
- Research Org.:
- Indiana Univ., Bloomington, IN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1774136
- Alternate Identifier(s):
- OSTI ID: 1741032
- Grant/Contract Number:
- SC0019466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Inorganic Chemistry
- Additional Journal Information:
- Journal Volume: 59; Journal Issue: 23; Journal ID: ISSN 0020-1669
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Iron; Electronic structure; Ligands; Phosphorus; Iron complexes
Citation Formats
Gao, Yafei, Pink, Maren, and Smith, Jeremy M. Iron(II) Complexes of an Anionic Bis(ylide)diphenylborate Ligand. United States: N. p., 2020.
Web. doi:10.1021/acs.inorgchem.0c02575.
Gao, Yafei, Pink, Maren, & Smith, Jeremy M. Iron(II) Complexes of an Anionic Bis(ylide)diphenylborate Ligand. United States. https://doi.org/10.1021/acs.inorgchem.0c02575
Gao, Yafei, Pink, Maren, and Smith, Jeremy M. Thu .
"Iron(II) Complexes of an Anionic Bis(ylide)diphenylborate Ligand". United States. https://doi.org/10.1021/acs.inorgchem.0c02575. https://www.osti.gov/servlets/purl/1774136.
@article{osti_1774136,
title = {Iron(II) Complexes of an Anionic Bis(ylide)diphenylborate Ligand},
author = {Gao, Yafei and Pink, Maren and Smith, Jeremy M.},
abstractNote = {Double deprotonation of the salt [Ph2B(PMe3)2][OTf] provides access to a bis(ylide)diphenylborate ligand that is readily transferred in situ to iron(II). Depending on the reaction stoichiometry, both the “ate” complex [Ph2B(Me2PCH2)2Fe(μ-Cl)2Li(THF)2] and the homoleptic complex [Ph2B(Me2PCH2)2]2Fe can be prepared from FeCl2(THF)1.5. Further reaction of with FeCl2(THF)1.5 produces the chloride-bridged dimer [Ph2B(Me2PCH2)2Fe(μ-Cl)2Fe(CH2PMe2)2BPh2]. Attempts to reduce or alkylate provide as the only isolable product, likely a consequence of the low steric hindrance of the bis(ylide)diphenylborate ligand. On the other hand, reaction of with the strong field ligand CNtBu provides the six-coordinate, diamagnetic complex [Ph2B(Me2PCH2)2Fe(CNtBu)4][Cl]. Here, the electronic structure calculations for the bis(ylide)diphenylborate ligand and homoleptic complex suggest that the C(ylide) atoms are strong σ-donors with little π-bonding character. These initial results suggest the potential for this bis(ylide)diphenylborate ligand in coordination chemistry.},
doi = {10.1021/acs.inorgchem.0c02575},
journal = {Inorganic Chemistry},
number = 23,
volume = 59,
place = {United States},
year = {Thu Nov 19 00:00:00 EST 2020},
month = {Thu Nov 19 00:00:00 EST 2020}
}
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