- 【Updated on May 12, 2025】 Integration of CiNii Dissertations and CiNii Books into CiNii Research
- Trial version of CiNii Research Automatic Translation feature is available on CiNii Labs
- Suspension and deletion of data provided by Nikkei BP
- Regarding the recording of “Research Data” and “Evidence Data”
Description
<jats:p>The binding energies of manganese cluster ions MnN+(N=5–7) were determined by the photodissociation experiments in the near-infrared and visible-photon-energy ranges. The bond dissociation energies of MnN+, D0(MnN−1+⋯Mn), were obtained to be 1.70±0.08, 1.04±0.10, and 1.46±0.11eV, respectively, for N=5, 6, and 7 from the threshold energies for the two-atom loss processes and the bond dissociation energies of Mn3+ and Mn4+ reported previously [A. Terasaki et al., J. Chem. Phys. 117, 7520 (2002)]. Correspondingly, binding energies per atom are obtained to be 0.99±0.03, 1.00±0.03, and 1.06±0.03eV∕at. for N=5, 6, and 7, respectively. A gradual increase in the binding energy from N=2 to N=7 shows an increasing contribution of nonbonding 3d orbitals to the bonding via weak hybridization with valence 4s orbitals as the cluster size increases. These binding energies per atom are still much smaller than the bulk cohesive energy of manganese (2.92eV∕at.), and this finding indicates exceptionally weak metal-metal bonds in this size range.</jats:p>
Journal
-
- The Journal of Chemical Physics
-
The Journal of Chemical Physics 123 2005-11-01
AIP Publishing
