Chemistry of Nitrogen-Containing Higher Boron Hydride Derivatives

摘要

Although arsaborane compounds are well known, the corresponding phosphaboranes have been little studied due to the complex nature of the reaction product mixture. The diphosphaborane, 1,2-P2B10H10 has been prepared in low yield from B10H14 using PC13 as the source of phosphorus. This reaction gives several other products, one of which is 6-(triethylamine)-2-PB9H8, which has been fully characterized, including a single crystal X-ray structure determination. The thermal conversion of 1,2-P2B10H10 to 1,7-P2B10H10 occurred at 560-590 C in a sealed tube. Aqueous base rapidly removed one phosphorus atom from 1,2-P2B10H10 to form the 7-PB10H 12- ion. Organic chemistry. (JES)