Das Verhalten von P2J4 in Lösung / The Behaviour of P2l4 in Solution

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Abstract
The changes of 31P nuclear magnetic resonance spectra of P2I4-CS2 solutions and of molecular weights of P2I4 in benzene with time have shown that in inert solvents a gradual disproportionation occurs with formation of PI3. White Phosphorus, P4, is not formed by this process. Instead the initially formed disproportionation product with higher Phosphorus content changes into a polymeric solid PnI by cleavage of PI3, which accounts for the increasing displacement of disproportionation equilibrium. The UV spectrum of P2I4 in n-Hexan is reported. The molar extinction coefficients indicate a considerable delocalization of unshared electron pairs of the Phosphorus atoms.

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