Localized high spin states in transition-metal dimers: X-ray absorption spectroscopy study

Journal Article · Mon Jun 15 00:00:00 EDT 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.79.241102· OSTI ID:21294178

Lau, J T; Hirsch, K; Langenberg, A; Probst, J; Richter, R; Rittmann, J; Vogel, M; Zamudio-Bayer, V; Moeller, T; Issendorff, B von ^[1]

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1. Institut fuer Optik und Atomare Physik, Technische Universitaet Berlin, EW 3-1, Hardenbergstrasse 36, D-10623 Berlin (Germany)

X-ray absorption spectroscopy provides direct evidence for localized valence electrons in Cr{sub 2}{sup +}, Mn{sub 2}{sup +}, and CrMn{sup +} dimer cations. Bonding in these transition-metal molecules is predominantly mediated by 4s electrons. This behavior is markedly different from other 3d transition-metal dimers with open 3d subshells and can be ascribed to the highly stable 3d{sup 5}({sup 6}S) configuration of the 3d subshell in chromium and manganese atoms and ions. In Cr{sub 2}{sup +}, Mn{sub 2}{sup +}, and CrMn{sup +}, 3d electron localization indicates local high spin states.

• OSTI ID: 21294178
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 79, Issue 24; Other Information: DOI: 10.1103/PhysRevB.79.241102; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
ATOMS
BONDING
CATIONS
CHEMICAL BONDS
CHROMIUM
CONFIGURATION
ELECTRONS
HIGH SPIN STATES
MANGANESE
MOLECULAR IONS
MOLECULAR STRUCTURE
MOLECULES
TRANSITION ELEMENTS
X-RAY SPECTRA
X-RAY SPECTROSCOPY