A Nonclassical Dihydrogen Adduct of S=1/2 Fe(I)

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We have exploited the capacity of the "(SiP3iPr)Fe(I)" scaffold to accommodate additional axial ligands and characterized the mononuclear S = 1/2 H-2 adduct complex (SiP3iPr)Fe-I(H-2). EPR and ENDOR data, in the context of X-ray structural results, revealed that this complex provides a highly unusual example of an open-shell metal complex that binds dihydrogen as a ligand. The H2 ligand at 2 K dynamically reorients within the ligand-binding pocket, tunneling among the energy minima created by strong interactions with the three Fe-P bonds.
Publisher
AMER CHEMICAL SOC
Issue Date
2011-10
Language
English
Article Type
Article
Keywords

TRIS(PHOSPHINO)SILYL LIGANDS; DINITROGEN COMPLEXES; IRON; EPR; NITROGENASE; ROTATION; ENDOR; NH3; N-2; H-2

Citation

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.133, no.41, pp.16366 - 16369

ISSN
0002-7863
DOI
10.1021/ja207003m
URI
http://hdl.handle.net/10203/95992
Appears in Collection
CH-Journal Papers(저널논문)
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