The Study of Boronn Perchlorate and Related Systems
Abstract
The compounds BCl2ClO4, BCl(ClO4)2 and B(ClO4)3 prepared by the reaction between BCl3 and anhydrous HClO41. They are extremely sensitive to moisture undergoing rapid hydrolysis even at -78 deg C. The compounds are also thermally unstable, where BCl2ClO4 decomposes with evolution of chlorine, BCl(ClO4)2 with evolution of chlorine and chlorine heptoxide and B(ClO4)3 with evolution of chlorine heptoxide. Density, refractive index, molecular weight and surface tension have been determined for the boron chloroperchlorates. Molar refractivity and the parachor were calculated for the chloroperchlorates and both give values which agree closely with values for the postulated compounds. Heat of hydrolysis was determined calorimetrically for BCl2ClO4 and from this, a value for the heat of formation was derived. The chloroperchlorates give solid adducts with (CH3)3N, the stability decreasing from BCl2ClO4 to BCl(ClO4)2. The triperchlorate did not form an adduct with trimethylamine but did form a somewhat stable adduct with nitronium perchlorate. The reaction of some non-metal halides and anhydrous HClO were investigated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1964
- Accession Number
- AD0617941
Entities
People
- E. F. Morello
- E. K. Ives
- R. A. Mosher