Synthesis and properties of oligomers of iron-manganese carbonyl complexes with bridging disulfido ligands

Richard D. Adams, Burjor Captain, O. Sung Kwon, Perry J. Pellechia, Sanghamitra Sanyal

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The reactions of activated CpFeMn(CO)7 1a and Cp*FeMn(CO)7 1b, Cp=C5Me5 with thiirane yielded the new dimeric mixed metal disulfido complexes: [CpFeMn(CO)53-S2)] 2 (2) and [Cp*FeMn(CO)53-S2)]2 (3). Compounds 2 and 3 both contain two triply bridging disulfido ligands. When heated at 40 °C, compound 2 was transformed into a trimeric compound Cp3Fe3Mn3(CO)153-S2)(μ4-S2) 2, 4. Compound 4 contains three disulfido ligands, each of which has a different bridging coordination mode in the six atom metal cluster. There are three inequivalent CpFe(CO)2 groupings linked to a central Mn3(S2) 3 core by the disulfido ligands. In solution, compound 4 exhibits a dynamical intramolecular exchange process that interconverts two of the three CpFe(CO)2 groups on the NMR timescale.

Original languageEnglish
Pages (from-to)1370-1376
Number of pages7
JournalJournal of Organometallic Chemistry
Volume689
Issue number8
DOIs
StatePublished - Apr 15 2004
Externally publishedYes

Fingerprint

Manganese
oligomers
Oligomers
manganese
Iron
Ligands
iron
ligands
synthesis
complex compounds
Coordination Complexes
metal clusters
Metal complexes
Ion exchange
Metals
Nuclear magnetic resonance
Atoms
nuclear magnetic resonance
metals
atoms

Keywords

  • Disulfido ligands
  • Iron
  • Manganese
  • Molecular dynamics
  • Oligomers

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Synthesis and properties of oligomers of iron-manganese carbonyl complexes with bridging disulfido ligands. / Adams, Richard D.; Captain, Burjor; Kwon, O. Sung; Pellechia, Perry J.; Sanyal, Sanghamitra.

In: Journal of Organometallic Chemistry, Vol. 689, No. 8, 15.04.2004, p. 1370-1376.

Research output: Contribution to journalArticle

Adams, Richard D. ; Captain, Burjor ; Kwon, O. Sung ; Pellechia, Perry J. ; Sanyal, Sanghamitra. / Synthesis and properties of oligomers of iron-manganese carbonyl complexes with bridging disulfido ligands. In: Journal of Organometallic Chemistry. 2004 ; Vol. 689, No. 8. pp. 1370-1376.
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abstract = "The reactions of activated CpFeMn(CO)7 1a and Cp*FeMn(CO)7 1b, Cp=C5Me5 with thiirane yielded the new dimeric mixed metal disulfido complexes: [CpFeMn(CO)5(μ3-S2)] 2 (2) and [Cp*FeMn(CO)5 (μ3-S2)]2 (3). Compounds 2 and 3 both contain two triply bridging disulfido ligands. When heated at 40 °C, compound 2 was transformed into a trimeric compound Cp3Fe3Mn3(CO)15 (μ3-S2)(μ4-S2) 2, 4. Compound 4 contains three disulfido ligands, each of which has a different bridging coordination mode in the six atom metal cluster. There are three inequivalent CpFe(CO)2 groupings linked to a central Mn3(S2) 3 core by the disulfido ligands. In solution, compound 4 exhibits a dynamical intramolecular exchange process that interconverts two of the three CpFe(CO)2 groups on the NMR timescale.",
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AU - Captain, Burjor

AU - Kwon, O. Sung

AU - Pellechia, Perry J.

AU - Sanyal, Sanghamitra

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N2 - The reactions of activated CpFeMn(CO)7 1a and Cp*FeMn(CO)7 1b, Cp=C5Me5 with thiirane yielded the new dimeric mixed metal disulfido complexes: [CpFeMn(CO)5(μ3-S2)] 2 (2) and [Cp*FeMn(CO)5 (μ3-S2)]2 (3). Compounds 2 and 3 both contain two triply bridging disulfido ligands. When heated at 40 °C, compound 2 was transformed into a trimeric compound Cp3Fe3Mn3(CO)15 (μ3-S2)(μ4-S2) 2, 4. Compound 4 contains three disulfido ligands, each of which has a different bridging coordination mode in the six atom metal cluster. There are three inequivalent CpFe(CO)2 groupings linked to a central Mn3(S2) 3 core by the disulfido ligands. In solution, compound 4 exhibits a dynamical intramolecular exchange process that interconverts two of the three CpFe(CO)2 groups on the NMR timescale.

AB - The reactions of activated CpFeMn(CO)7 1a and Cp*FeMn(CO)7 1b, Cp=C5Me5 with thiirane yielded the new dimeric mixed metal disulfido complexes: [CpFeMn(CO)5(μ3-S2)] 2 (2) and [Cp*FeMn(CO)5 (μ3-S2)]2 (3). Compounds 2 and 3 both contain two triply bridging disulfido ligands. When heated at 40 °C, compound 2 was transformed into a trimeric compound Cp3Fe3Mn3(CO)15 (μ3-S2)(μ4-S2) 2, 4. Compound 4 contains three disulfido ligands, each of which has a different bridging coordination mode in the six atom metal cluster. There are three inequivalent CpFe(CO)2 groupings linked to a central Mn3(S2) 3 core by the disulfido ligands. In solution, compound 4 exhibits a dynamical intramolecular exchange process that interconverts two of the three CpFe(CO)2 groups on the NMR timescale.

KW - Disulfido ligands

KW - Iron

KW - Manganese

KW - Molecular dynamics

KW - Oligomers

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