Glyoxal + hv = 2 HCO ! Abs. from Plum et al. ! Best fit to ITC and CTC acetylene runs obtained if high wavelength ! QY is assumed to be unity. High wavelength quantum yields adjusted ! to obtain best fits to ITC and CTC acetylene runs, using "optimized" ! mechanism for acetylene. High wl cutoff calculated using following ! parameters, which both were adjusted to yield best fits: ! Constant at low wavelength value for wl < 0.380 nm. ! Falls linearly to zero with increasing wavelength between 0.380 and 0.397 nm. ! Yields computed radical quantum yield of 0.0471 for conditions of CTC during ! acetylene study. This is 46% higher than indicated by data of Plum et al. 0.2300 2.87E-21 1.0000 0.2350 2.87E-21 1.0000 0.2400 4.30E-21 1.0000 0.2450 5.73E-21 1.0000 0.2500 8.60E-21 1.0000 0.2550 1.15E-20 1.0000 0.2600 1.43E-20 1.0000 0.2650 1.86E-20 1.0000 0.2700 2.29E-20 1.0000 0.2750 2.58E-20 1.0000 0.2800 2.87E-20 1.0000 0.2850 3.30E-20 1.0000 0.2900 3.15E-20 1.0000 0.2950 3.30E-20 1.0000 0.3000 3.58E-20 1.0000 0.3050 2.72E-20 1.0000 0.3100 2.72E-20 1.0000 0.3125 2.87E-20 1.0000 0.3150 2.29E-20 1.0000 0.3200 1.43E-20 1.0000 0.3250 1.15E-20 1.0000 0.3275 1.43E-20 1.0000 0.3300 1.15E-20 1.0000 0.3350 2.87E-21 1.0000 0.3400 0.00E+00 1.0000 0.3450 0.00E+00 1.0000 0.3500 0.00E+00 1.0000 0.3550 0.00E+00 1.0000 0.3600 2.29E-21 1.0000 0.3650 2.87E-21 1.0000 0.3700 8.03E-21 1.0000 0.3750 1.00E-20 1.0000 0.3800 1.72E-20 0.9721 0.3820 1.58E-20 0.8546 0.3840 1.49E-20 0.7370 0.3860 1.49E-20 0.6195 0.3880 2.87E-20 0.5019 0.3900 3.15E-20 0.3844 0.3910 3.24E-20 0.3256 0.3920 3.04E-20 0.2668 0.3930 2.23E-20 0.2081 0.3940 2.63E-20 0.1493 0.3950 3.04E-20 0.0905 0.3960 2.63E-20 0.0318 0.3970 2.43E-20 0.0000 0.3980 3.24E-20 0.0000 0.3990 3.04E-20 0.0000 0.4000 2.84E-20 0.0000 0.4010 3.24E-20 0.0000 0.4020 4.46E-20 0.0000 0.4030 5.27E-20 0.0000 0.4040 4.26E-20 0.0000 0.4050 3.04E-20 0.0000 0.4060 3.04E-20 0.0000 0.4070 2.84E-20 0.0000 0.4080 2.43E-20 0.0000 0.4090 2.84E-20 0.0000 0.4100 6.08E-20 0.0000 0.4110 5.07E-20 0.0000 0.4115 6.08E-20 0.0000 0.4120 4.86E-20 0.0000 0.4130 8.31E-20 0.0000 0.4135 6.48E-20 0.0000 0.4140 7.50E-20 0.0000 0.4145 8.11E-20 0.0000 0.4150 8.11E-20 0.0000 0.4155 6.89E-20 0.0000 0.4160 4.26E-20 0.0000 0.4170 4.86E-20 0.0000 0.4180 5.88E-20 0.0000