Phys. Rev. Lett. 77, 4528–4531 (1996)Photoelectron Spectra and Geometric Structures of Small Niobium Cluster AnionsReceived 22 August 1996; published in the issue dated 25 November 1996 Photoelectron spectroscopy measurements and density functional theory calculations are combined to determine structures of Nbn - ( n = 3–8) clusters. A detailed comparison between observed and calculated electronic binding energies shows that the clusters have low-symmetry compact 3D structures and the lowest possible total spin, except for the three- and five-atom clusters which are in triplet states. We find evidence for the coexistence of two isomers of Nb8 - under some experimental conditions. This approach shows great promise for structural characterization of small clusters. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.4528
DOI:
10.1103/PhysRevLett.77.4528
PACS:
36.40.Mr, 31.15.Ew, 33.80.Eh, 36.40.Wa
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