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Crystal structure and magnetic properties of tetra(monomethylammonium)hexachloroytterbatochloride(CH 3 NH 3 ) 4 YbCl 7
Author(s) -
Czjzek M.,
Fuess H.,
Pabst I.
Publication year - 1992
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.19926170118
Subject(s) - crystallography , crystal structure , tetra , octahedron , raman spectroscopy , chemistry , magnetic susceptibility , group (periodic table) , crystal (programming language) , space group , acetonitrile , materials science , x ray crystallography , physics , diffraction , programming language , organic chemistry , chromatography , medicinal chemistry , computer science , optics
(CH 3 NH 3 ) 4 YbCl 7 has been synthesized from a solution of CH 3 NH 3 Cl and YbCl 3 in a mixture of ethnole/acetonitrile. The structure was solved from 1464 single crystal data by Patterson methods and refined to a final R w = 0.035 space group P2, a = 9.972(6) Å, b = 7.605(5) Å, c = 12.866(6) Å, β = 90.53(4)°. The structure consists of alternating [YbCl 6 ] 3− octahedra and of tetrahedrally arranged [(CH 3 NH 3 ) 4 Cl] 3+ units. Raman spectra display a splitting of frequencies related to the CH 3 NH 3 + group in agreement with the structure determination. The magnetic susceptibility shows a remarkable deviation from a Curie‐Weiss law below 170 K which may be explained by crystal field effects of Yb 3+ .