Fig. 3: Determination of the direction of bond dissociation in I3− in methanol.
The fs-TRXL data were fitted with two different dissociation models. a Two models for bond dissociation, the shorter-bond dissociation and the longer-bond dissociation, are shown schematically. b The wRs obtained when the shorter-bond dissociation (black) or the longer-bond dissociation (red) model is used to fit the isotropic and anisotropic data, simultaneously. c The wRs for the isotropic data. d The wRs for the anisotropic data. The smaller wRs with the shorter-bond dissociation at all time delays in the anisotropic data support the shorter-bond dissociation over the longer-bond dissociation, whereas such a distinction is relatively less clear in the isotropic data. In b–d, the ratio of the sum of wRs for the longer-bond dissociation and that of the shorter-bond dissociation is also shown. The larger ratio indicates the better fit quality for the shorter-bond dissociation model relative to the longer-bond dissociation.
