Zur Elektronenstruktur metallorganischer Komplexe der φ-Elemente—XXVI. Einkristall-optische und magnetooptische Untersuchungen am Essigsäure-n-butylester Addukt des Grundkörpers Tris-(η5-cyclopentadienyl)—praseodym(III)

Add time:07/21/2019    Source:sciencedirect.com

By comparing the absorption spectrum of an oriented single crystal of the n-butylacetate adduct derived from tris (η5-cyclopentadienyl)-praseodymium(III) with the corresponding absorption spectrum run as pellet or solution, the excited terminal crystal field states of A1 and E symmetry, respectively, could be assigned. Additionally, the magnetic circular dichroism spectrum of this complex was recorded in the range 430–2070 nm. From the selection rules for magnetic circular dichroism spectroscopy the dominant 1 ± Jz > values in the eigenvectors of some excited E states could be determined. The experimental results agree with the predictions of a previous crystal field calculation.

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