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Low temperature absorption spectra of TcO −4 and ReO −4 in KClO4

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Abstract

The low temperature spectra of TcO −4 and ReO −4 both show two band systems with pronounced vibrational structures. The bands are identified as1 A 1→1 T 2 transitions. No other bands are observed with certainty. It seems likely that the KClO4 crystals contain KReO4 crystallites. They are therefore not pure mixed crystals. It is concluded that the virtual orbital (2e) used in the construction of the low lying states resembles an atomic nd orbital more and more when going from n=3, Mn to n=5, Re.

Zusammenfassung

Die Tieftemperaturspektren von TcO −4 und ReO −4 zeigen beide zwei Bandensysteme mit ausgeprägten Schwingungsstrukturen. Die Banden werden als 1 A 1→1 T 2-Übergänge identifiziert. Keine anderen Banden werden mit Sicherheit beobachtet. Es scheint wahrscheinlich, daß die KClO4-Kristalle KReO4-Kristallite enthalten und deswegen keine reinen Mischkristalle sind. Es wird geschlossen, daß das virtuelle Orbital (2e), welches zur Konstruktion der tiefliegenden Zustände gebraucht wird, in der Reihe n=3, Mn bis n=5, Re immer weitgehender einem nd-Atomorbital ähnelt.

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Authors and Affiliations

  1. Chemical Laboratory IV, H.C. Ørsted Institute, University of Copenhagen, Denmark

    H. U. Güdel &  C. J. Ballhausen

  2. College of Chemistry, Louisiana State University, 70803, Baton Rouge, Louisiana, USA

    C. J. Ballhausen

Authors
  1. H. U. Güdel
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  2. C. J. Ballhausen
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Nachwuchsstipendiat, Schweizerischer Nationalfonds.

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Güdel, H.U., Ballhausen, C.J. Low temperature absorption spectra of TcO −4 and ReO −4 in KClO4 . Theoret. Chim. Acta 25, 331–337 (1972). https://doi.org/10.1007/BF00526564

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  • DOI: https://doi.org/10.1007/BF00526564

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