Sulfide. A solution of diethyl sulfide (6.3 X lo-'M) and a sensitizer (6.3 X lo4 M) in the absence or presence of the quencher (6.3 XM) was saturated with oxygen and the system closed and irradiated. At regular intervals, the yield of diethyl sulfoxide was measured by GLC (4 mm X 1 m glass tube, 10% PEG-2OM on Uniport HP; column temperature, 150" C). The results obtained are shown in Figure 1.
