Table 1. Determination of the branching ratio γ from the experimental ratio R and literature values for α.

Expt. no.	RO2	α	R obs	γ	Average γ
PER1	CH3O2	0.48a	3.3	0.147
PER2	CH3O2	0.46a	2.8	0.166
PER3	CH3O2	0.46a	2.7	0.170
PER4	CH3O2	0.47a	3.0	0.158
PER5	CH3O2	0.55a	6.7	0.082
PER6	CH3O2	0.50a	3.9	0.129
PER7	CH3O2	0.49a	3.5	0.140	0.141
PER8	C2H5O2	0.3	3.3	0.091
PER9	C2H5O2	0.3	3.3	0.091
PER10	C2H5O2	0.3	4.4	0.071
PER11	C2H5O2	0.3	4.8	0.068	0.080
PER12	iso-C3H7O2	0.44	2.8	0.259
PER13	iso-C3H7O2	0.44	15.3	0.050
PER14	iso-C3H7O2	0.44	3.9	0.207	0.172
PER15	1-C3H7O2	0.3b	5.1	0.055
PER16	1-C3H7O2	0.3b	11.6	0.031
PER17	1-C3H7O2	0.3b	12.6	0.029	0.038
PER18	1-C4H9O2	0.3b	27.4	0.011
PER19	1-C4H9O2	0.3b	31.0	0.010
PER20	1-C4H9O2	0.3b	25.2	0.012	0.011
PER21	tert-C4H9O2	—	3.24	0.481
PER22	tert-C4H9O2	—	3.06	0.495
PER23	tert-C4H9O2	—	3.51	0.461
PER24	tert-C4H9O2	—	4.00	0.429	0.466

^aCalculated from β from ref. 9 and R.

^bAssumed identical to α for C₂H₅O₂.