Transient spectrum from nanosecond pulse radiolysis of liquid ammonia |
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Authors: | J Belloni P Cordier J Delaire |
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Institution: | Laboratoire de Physico-Chimie des Rayonnements (Associé au CNRS) Université de Paris-Sud, Centre d''Orsay, 91405 Orsay, France |
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Abstract: | In addition to the absorption of the ammoniated electron, the transient absorption spectrum of irradiated liquid ammonia contains two ultraviolet bands at 250 nm and 320 nm. The latter is shown to be due neither to the NH2? ion nor to NH singlet. There is conflicting evidence concerning its possible assignment to NH triplet. The C value of the ammoniated electron has been found to be 3.0 at ?48°C. At ?45°C, the ammoniated electron decays with concurrent first and second order kinetics and it reacts with Cu2+ with the rate constant 1.5 × 1011 mole?1 sec?1. |
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