Tetracarbon Metallocarboranes. 1. Iron, Nickel and Molybdenum Complexes Derived from (CH3)4C4B8H8. Crystal Structure of (n5-C5H5)Fe(CH3)4C4B7H8.

Abstract

Reduction of the carborane (CH3)4C4B8H8 with sodium in tetrahydrofuran produces the apparent (CH3)4C4B8H8(-2) dianion, which in turn reacts with FeCl2 and NaC5H5 to generate a series of iron tetracarbon metallocarboranes. These include four isomers of a 14-vertex species, (eta(5)-C5H5)Fe(CH3)4C4B7H8. The latter complex was structurally characterized by X-ray diffraction and was shown to contain an open face with a bridging B-H-B hydrogen atom. The four skeletal carbon atoms occupy 3-, 4-, 4-, and 5- coordinate vertices, three of them on the open face. The reaction of dichloro-1,2-bis (diphenylphosphine) ethanenickel(II) with (CH3)4C4B8H8(-2) ion produces two isomers of the 12-vertex system ((C6H5)2PCH2)2Ni(CH3)4C4B7H7 and three isomers of a 13-vertex system, ((C6H5)2PCH2)2Ni(CH3)4C4B8H8. Direct reaction of Mo(CO)6 and of W(CO)6 with the neutral species (CH3)4C4B8H8 produces the 13-vertex species (CO)3M(CH3)4C4B8H8 (M=Mo or W).

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA035679

Entities

People

  • Robert F. Bryan
  • Russell N. Grimes
  • William M. Maxwell

Organizations

  • University of Virginia

Tags

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Diffraction
  • Elements
  • Hydrogen
  • Molybdenum
  • Wave Phenomena
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry