Iron Carbide-Sulfide Carbonyl Clusters

Liang Liu, Thomas B. Rauchfuss, Toby J. Woods

Research output: Contribution to journalArticlepeer-review


Described is the preparation of the first iron carbide-sulfides. The cluster [Fe6C(CO)15(SO2)]2- ([2]2-), which is generated quantitatively from [Fe6C(CO)16]2- ([1]2-), was O-methylated to give the sulfinite [2Me]-. Demethoxylation of [2Me]- with BF3 gave the face-capped octahedral cluster Fe6C(CO)15(SO) (3). In solution, 3 spontaneously converted to the sulfide Fe6C(CO)16(S) (4), an edge-fused double cluster with Fe5C and Fe3S subunits. Although 4 undergoes 1e- reduction reversibly, 2e- reduction (or base hydrolysis) of 4 gives closo-[Fe6C(CO)14(S)]2- ([5]2-). The synthetic entries into the Fe6CSx manifold may underpin the preparation of active-site analogues of the FeMoco and FeVco cofactors.

Original languageEnglish (US)
Pages (from-to)8271-8274
Number of pages4
JournalInorganic Chemistry
Issue number13
StatePublished - Jul 1 2019

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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