Thallium, Indium, and Tin Halides

The polarization measurements showed that the Cl atoms and SnCl fragments had the same anisotropy factor 3 = 0.21 0.01, which, if the dissociation is fast compared with molecular rotation, suggests that there is a angle of 46.5 0.4° between the transition dipole moment and the dissociation direction. 

The transition dipole moment lies in the plane of the molecule rather than perpendicular to this plane. A model was developed in which charge transfer occurs in the excited (SnCl2) molecule, resulting from photoexcitation between the nonbonding p orbital on the Cl atom and the px orbital on the Sn atom. This model 

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