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Monatshefte für Chemie / Chemical Monthly

, Volume 105, Issue 2, pp 241–253 | Cite as

Photolyse von Monophenylphosphat und e aq -Bildung in wäßriger Lösung

  • N. Getoff
  • Sonja Solar
Anorganische, Struktur- und Physikalische Chemie

Photolysis of monophenyl phosphate and formation of e aq in aqueous solution

Abstract

At photolysis (253.7 nm) of monophenylphosphate (10−3m) in O2-free neutral aqueous solution were determined: orthophosphate (Φ=0.006), phenol (Φ=0.0029), besides of small amounts of phosphorous acid, benzene, 2.2′-dihydroxybiphenyl and traces of 2.4′- and 4.4′-dihydroxybiphenyl. The yield of the main products is smaller at pH 2 and 12. Polymers were formed at u.v.-doses >2·1019hv/ml. The electron yield determined by means of N2O increases from Φ (N2)= Φ(e aq )=0.012 to 0.019 changing the ester concentration from 0.001 to 0.1m. Φ (N2)-value rises by addition of methanol or increasing pH. As electron ejecting state an excited complex is postulated. The effective ionization potential of phenylphosphate in aqueous solution is ≦4.9 e.v.

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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • N. Getoff
    • 1
  • Sonja Solar
    • 1
  1. 1.Institut für Theoretische Chemie und Strahlenchemie der Universität wienWienÖsterreich

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