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Zur Elektronenstruktur hochsymmetrischer Verbindungen der f‐Elemente. 42 Ableitung und Simulation des Kristallfeld‐Aufspaltungsmusters von Tris(bis(trimethylsilyl)amido)ytterbium(III)
Author(s) -
Jank Stefan,
Reddmann Hauke,
Apostolidis Christos,
Amberger HannsDieter
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200600279
Subject(s) - ytterbium , raman spectroscopy , crystal (programming language) , absorption spectroscopy , spectral line , crystallography , trimethylsilyl , tris , chemistry , materials science , analytical chemistry (journal) , physics , doping , optics , condensed matter physics , biochemistry , astronomy , medicinal chemistry , computer science , programming language , chromatography
Electronic Structures of Highly Symmetrical Compounds of f Elements. 42 Derivation and Simulation of the Crystal Field Splitting Pattern of Tris(bis(trimethylsilyl)amido)ytterbium(III) Tris(bis(trimethylsilyl)amido)ytterbium(III), (Yb(btmsa) 3 ( 1 )) was grown as a single crystal of the size 6×2×2 mm. The unpolarized absorption and luminescence as well as the σ and π absorption spectra of this crystal were recorded at room and low temperatures. The observed polarization properties as well as identificational calculations allowed the separation of zero‐phonon‐ and phonon‐assisted transitions of comparable intensities. The thus derived crystal field splitting pattern could be simulated by fitting the free parameters of a phenomenological Hamiltonian. In order to assign the coupling vibrations, FIR/MIR‐ and unpolarized Raman spectra of 1 as well as polarized Raman spectra of Y(btmsa) 3 ( 2 ) were recorded and compared with previously assigned ones of MeGa(btmsa) 2 and H(btmsa).