CH3CH2CH2SH CH2SH+ 4 CHS++ H2 0.93 C H3SSCH3 CH3S+ 4 CHS'+ H2 0.94 CD3SH CD2SH++ CDS++ HD 0.91 CDiSH CD&++ CDS++ D, 0.93 system one might be able to compare kinetic energy releases for the 1, 2-H2 elimination reaction 1 and the 1, l-H2 elimination reaction 2 for isomeric ions. Table I records the kinetic energy releases calculated from the half-height widths of the metastable peaks observedI0 for ...