(a) Simulated concentration profiles of S (solid line), R (dashed line) (a); S
(solid line) R
(dashed line) (b); and RS (solid line) and SR (dashed line) (c); for model (17-27). Enantiomeric excess ee = ([R] - [S] + [R*] - [S*] + 2[R2] - 2[S2])/c for c = 2, k1 = k2 = k3 = k6 = k7 = 1, k-1 = k8 = k9 = k10 = k11 = 0.1 and k4 = k5 = 100. Initial conditions: [S] = 1.9, [R] = 0.1 and concentrations of other compounds equal to zero.