Accession Number:

AD0742836

Title:

Novel Iron-Carborane Mu- and Pi-Complexes Derived from Nido-C2B4H8. A Paramagnetic Small Carborane Sandwich Compound

Descriptive Note:

Technical rept.

Corporate Author:

VIRGINIA UNIV CHARLOTTESVILLE DEPT OF CHEMISTRY

Report Date:

1972-05-01

Pagination or Media Count:

10.0

Abstract:

The reaction of NaC2B4H7 with Pi-C5H5FeCO2I gives Mu-Pi-C5H5 FeCO2C2B4H7 I in which the metal atom is bound to the cage via a B-Fe-B three-center bond. Ultraviolet irradiation of I yields Pi-C5H5FeIIPi- C2B4H7 II, a diamagnetic sandwich complex containing a nonterminal hydrogen which may be at least partially bonded to the iron atom, and Pi-C5H5FeIII pi-C2B4H6 III, a paramagnetic sandwich species which is isoelectronic with ferricinium ion. The conversion of II to III also occurs during thick-layer chromatography on silica gel. The structural characterization of I, II, and III is based on 11B and 1H nmr, mass spectra, infrared spectra, and the epr spectrum of III.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE