CHEMISTRY OF DECABORANE-PHOSPHORUS COMPOUNDS. VI. PHOSPHINO-M-CARBORANES.
Abstract
Reactions between m-B10H10C2Li2 and chlorophosphines were conducted, and the chemistry of the products obtained was investigated. No indication of a cyclic monomeric product was observed. In reacting two molar equivalents of PCl3 and one molar equivalent of m-B10H10C2Li2, m-B10H10C2(P.Cl2) was obtained in 40% yield only, together with a product the consistency of which varied between highly viscous and brittle from run to run. Treatment of this by-product with methanol produced a polymeric solid. When the same reactants were combined in a 1:1 molar ratio, still some m-B10H10C2(P.Cl2)2 was obtained. Although the yield of polymeric product increased, the chain length remained unchanged. Reaction of the analogous m-B10H9BrC2Li2 with PCl3 did not afford the noncyclic monomer but a pasty product from which an oligomer was obtained by treatment with methanol. From these results it appears that this type of reaction leads only to polymeric products of limited molecular weight. These polymers consisting of a number of phosphorus-linked m-carborane nuclei are believed to be linear since they resemble metal-linked poly-mcarboranes of established chain structure. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1965
- Accession Number
- AD0622300
Entities
People
- Hansjuergen Schroeder
- Roy P. Alexander