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Inorg Chem. 2012 Jan 2;51(1):119-27. doi: 10.1021/ic201206e. Epub 2011 Dec 2.

Visible-light generation of the naked 12-electron fragment C5H5Fe+: alkyne-to-vinylidene isomerization and synthesis of polynuclear iron vinylidene and alkynyl complexes including hexairon stars.

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1
Univ. Bordeaux, ISM, UMR CNRS 5255, 33405 Talence Cedex, France.

Abstract

Visible-light photolysis of [FeCp(η(6)-C(6)H(5)CH(3))][PF(6)] using a simple 100-W bulb or a compact fluorescent light bulb in the presence of terminal alkynes and dppe yielded the vinylidene complexes [FeCp(═C═CHR)(dppe)][PF(6)] that were deprotonated by t-BuOK to yield the alkynyl complexes [FeCp(-C≡CR)(dppe)]. The reaction has been extended to the synthesis of bis-, tris, tetra-, and hexanuclear iron complexes including three alkynes of the ferrocenyl family.

PMID:
22136194
DOI:
10.1021/ic201206e
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