PREPARATION AND NMR STUDY OF PHOSPHORUS-FLUORINE COMPOUNDS UNDERGOING INTRAMOLECULAR EXCHANGE. PART 3.1SUBSTITUTED FLUORODIAZADIPHOSPHETIDINES

Abstract
Proton, 19F and 31P NMR studies of a number of tetra-, tri- and di-fluorodiazadiphosphetidines have yielded information about the barriers to pseudorotation at the phosphorus atoms. The data are classified according to the process studied, and are discussed in terms of the feasible exchange mechanisms. The PFR2 group is substantially more rigid than the PF2R group.
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