Cobaltacarboranes with Intramolecular Monophosphorus Bridges 8,8'-μ-Me2P(1,2-C2B9H10)2-3-Co, 6,6'-μ-Me2P(1,7-C2B9H10)2-2-Co and the Respective Non-Bridged Trimethylphosphine Derivatives (8-Me3P-1,2-C2B9H10)-3-Co-(1,2-C2B9H11) and (6-Me3P-1,7-C2B9H10)-2-Co-(1,7-C2B9H11)

Franken, Andreas; Plešek, Jaromír; Fusek, Jiří; Semrau, Markus

doi:10.1135/cccc19971070

CCCC > Archive > 1997, Volume 62 > Issue 7 > p. 1070

Cobaltacarboranes with Intramolecular Monophosphorus Bridges 8,8'-μ-Me₂P(1,2-C₂B₉H₁₀)₂-3-Co, 6,6'-μ-Me₂P(1,7-C₂B₉H₁₀)₂-2-Co and the Respective Non-Bridged Trimethylphosphine Derivatives (8-Me₃P-1,2-C₂B₉H₁₀)-3-Co-(1,2-C₂B₉H₁₁) and (6-Me₃P-1,7-C₂B₉H₁₀)-2-Co-(1,7-C₂B₉H₁₁)

Andreas Franken^a, Jaromír Plešek^a, Jiří Fusek^a and Markus Semrau^b

^a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250 68 Řež near Prague, Czech Republic
^b Institut für Anorganische Chemie der Christian-Albrechts-Universitat, Olshausenstr. 40,24098 Kiel, Germany

Abstract

The first two cobaltacarboranes with intramolecular phoshorus bridges and two related non-bridged trimethylphosphine-cobaltacarborane derivatives are described and characterized by mass spectrometry and multinuclear NMR; all four compounds are zwitterions: 8,8'-μ-Me₂P(1,2-C₂B₉H₁₀)₂-3-Co (1a), 6,6'-μ-Me₂P(1,7-C₂B₉H₁₀)₂-2-Co (2a), (8-Me₃P-1,2-C₂B₉H₁₀)-3-Co-(1,2-C₂B₉H₁₁) (1b) and (6-Me₃P-1,7-C₂B₉H₁₀)-2-Co-(1,7-C₂B₉H₁₁) (2b). X-Ray structures of the first two and of the last compound has been established.

Keywords: Cobaltacarboranes with B-P terminal bonds; B-PMe₂-B bridges; X-Ray structures; Multinuclear NMR.

Previous abstract Next abstract

Collection of Czechoslovak Chemical Communications - digital archive

Cobaltacarboranes with Intramolecular Monophosphorus Bridges 8,8'-μ-Me2P(1,2-C2B9H10)2-3-Co, 6,6'-μ-Me2P(1,7-C2B9H10)2-2-Co and the Respective Non-Bridged Trimethylphosphine Derivatives (8-Me3P-1,2-C2B9H10)-3-Co-(1,2-C2B9H11) and (6-Me3P-1,7-C2B9H10)-2-Co-(1,7-C2B9H11)

Abstract