Premium
Electronic Structures of Highly Symmetrical Compounds of f Elements. 45 [1] Unusual Spectrochemical Properties of the Triphenylphosphinoxido Ligand in the Case of Mono and Bis Adducts of Homoleptic Samarium(III) Silylamides
Author(s) -
Jank Stefan,
Reddmann Hauke,
Zhang Lixin,
Amberger HannsDieter
Publication year - 2012
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.201200177
Subject(s) - tetrahydrofuran , samarium , moiety , chemistry , adduct , crystallography , stereochemistry , medicinal chemistry , inorganic chemistry , organic chemistry , solvent
Abstract The optical spectra of the mono tetrahydrofuran ( 1 ), mono triphenylphosphinoxide ( 2 ) and bis cyclohexylisocyanide ( 3 ) adducts of the tris(bis(trimethylsilyl)amido)samarium(III) (Sm(btmsa) 3 ) moiety as well as those of the bis tetrahydrofuran ( 4 ) and partly those of the bis triphenylphosphinoxide ( 5 ) of the tris(bis(dimethylsilyl)amido)samarium(III) moiety have been recorded at room and low temperatures. From the spectra obtained, the underlying crystal field splitting patterns could be derived, and simulated by fitting the free parameters of a phenomenological Hamiltonian. The values of the crystal field parameters B $\rm^{2}_{0}$ of the OPPh 3 adducts are much less negative than those of the remaining adducts or that of the base free compound.