BORON POLYMERS
Abstract
The incorporation of P-B bonds within molecules is expected to create materials which are thermally stable. Triboradimethyne, B3C2H5, and tetraboradimethyne, B4C2H6, were obtained by the reactions of pentaborane and acetylene in a silent electric discharge. A series of perhydrodecaborate salts of the type (Phenyl3PR)2 B10H10 in which R is methyl, ethyl, propyl and butyl was prepared; the melting point of the compounds decreased progressively from 295 to 167 C. Three salts of the type (Phenyl3P(CH2) PPhenyl3B10H10) were prepared. The B10H12 unit was shown to be destroyed in reactions designed to substitute an H atom of a phenyl group of an attached ligand. A variety of symmetrical B10H12 compounds were prepared, the most interesting being ClPPhenyl2B10H12PPhenyl2Cl. Methods of replacement of the Cl atoms by other groups such as -NH2, CH3NH- -OC2H5 have been established. Phenyl2PB10H13 was synthesized and in reactions explored, differs considerably from decaborane or tertiary phosphines. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 05, 1961
- Accession Number
- AD0263097
Entities
People
- T.l. Heying