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8.3.4 Joint Anion Photoelectron and Computational Studies
of Vanadium-Benzene Sandwich Clusters and Their
Anions
The interplay between anion PES and theory, as described in Sect. 8.3.3, is
especially powerful to study clusters both at anionic and neutral states. However, applications of this method for transition metal-Bz sandwich clusters were
somewhat limited due to difficulty in preparing anions of the transition metal-Bz
clusters. Despite their successful work on VBz − , Judai et al. did not investigate
multinuclear V n Bz m
− anions. Their mass spectrum (Fig. 8.19a) showed some
dehydrogenation products with no presence of V n Bz m
− with n ≥ 2 and m ≥ 2.
Fig. 8.19 Mass spectra of V n Bz m
− cluster anions measured by (a) Judai et al. [60] and (b)
Masubuchi et al. [113] The maximum stagnation pressures of He carrier gas used for cluster
production were 10 bar and 50 bar for (a) and (b), respectively. (a) was reprinted from Ref. [60]
with permission from Elsevier and (b) from Ref. [113] with the permission of AIP Publishing