Reactivity of (Triphos)FeBr2(CO) towards sodium borohydrides

Tufan K. Mukhopadhyay, Thomas L. Groy, Nathan C. Smythe, John C. Gordon, Ryan Trovitch

Research output: Contribution to journalArticle

Abstract

The addition of CO to (Triphos)FeBr2 (Triphos = PhP(CH2CH2PPh2)2) resulted in formation of six-coordinate (Triphos)FeBr2(CO). This coordination compound was found to have cis-bromide ligands and a mer-Triphos ligand by single crystal X-ray diffraction. Once characterized, the reactivity of this compound toward NaEt3BH and NaBH4 was investigated. Adding 1 eq. of NaEt3BH to (Triphos)FeBr2(CO) resulted in formation of (Triphos)FeH(Br)(CO), while the addition of 2.2 eq. afforded previously described (Triphos)Fe(CO)2. In contrast, adding 2.2 eq. of NaBH4 to (Triphos)FeBr2(CO) resulted in carbonyl dissociation and formation of diamagnetic (Triphos)FeH(η2-BH4), which has been structurally characterized. Notably, efforts to prepare (Triphos)FeH(η2-BH4) following 2.2 eq. NaBH4 addition to (Triphos)FeBr2 were unsuccessful. The importance of these observations as they relate to previously reported (Triphos)Fe reactivity and recent developments in Fe catalysis are discussed.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Coordination Chemistry
DOIs
Publication statusAccepted/In press - Jun 16 2016

Fingerprint

borohydrides
Carbon Monoxide
reactivity
Ligands
Sodium
sodium
Catalysis
ligands
Single crystals
X ray diffraction
catalysis
bromides
dissociation
single crystals
Bromides
diffraction
sodium borohydride
x rays

Keywords

  • borane ligands
  • coordination compounds
  • hydrides
  • Iron
  • triphos

ASJC Scopus subject areas

  • Materials Chemistry
  • Physical and Theoretical Chemistry

Cite this

Reactivity of (Triphos)FeBr2(CO) towards sodium borohydrides. / Mukhopadhyay, Tufan K.; Groy, Thomas L.; Smythe, Nathan C.; Gordon, John C.; Trovitch, Ryan.

In: Journal of Coordination Chemistry, 16.06.2016, p. 1-9.

Research output: Contribution to journalArticle

Mukhopadhyay, Tufan K. ; Groy, Thomas L. ; Smythe, Nathan C. ; Gordon, John C. ; Trovitch, Ryan. / Reactivity of (Triphos)FeBr2(CO) towards sodium borohydrides. In: Journal of Coordination Chemistry. 2016 ; pp. 1-9.
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