The absorption behaviour of Mn 2+ -ions in Ce02 has been investigated and interpreted for the first time. Beside the hyperfine-multiplett with selection rules AM = \ and Am = 0 we observed forbidden transitions with AM = 1 and Am=+\. At T -29Q K the line width is rather small and amounts to 2.5 G. The entire spectrum can be described by an isotropic spin-Hamilton operator with #=1.9989 and v4 = 86.36-10~4 cm -1 . It is shown for Mn 2+ in the crystal-field of oxygen-ions that there is a linear relationship between the hyperfine coupling constant A and the coordination number.
Einleitung
Nicht erst mit Reach ist die chemische Industrie vom Hersteller bis zum Lieferanten an den Endverbraucher für die Sicherheit ihrer Produkte verantwortlich. Wer treibt bei der Produktsicherheit die Branche und den Wandel? Im Gespräch mit den Nachrichten aus der Chemie berichtet Uwe Wolfmeier, bei Clariant verantwortlich für die Produktsicherheit.
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