In:
Chemistry – A European Journal, Wiley, Vol. 20, No. 45 ( 2014-11-03), p. 14579-14583
Abstract:
We report the synthesis and characterization of the uranium(III) triamide complex [U III (N**) 3 ] [ 1 , N**=N(SiMe 2 t Bu) 2 − ]. Surprisingly, complex 1 exhibits a trigonal planar geometry in the solid state, which is unprecedented for three‐coordinate actinide complexes that have exclusively adopted trigonal pyramidal geometries to date. The characterization data for [U III (N**) 3 ] were compared with the prototypical trigonal pyramidal uranium(III) triamide complex [U III (N“) 3 ] (N”=N(SiMe 3 ) 2 − ), and taken together with theoretical calculations it was concluded that pyramidalization results in net stabilization for [U III (N“) 3 ], but this can be overcome with very sterically demanding ligands, such as N**. The planarity of 1 leads to favorable magnetic dynamics, which may be considered in the future design of U III single‐molecule magnets.
Type of Medium:
Online Resource
ISSN:
0947-6539
,
1521-3765
DOI:
10.1002/chem.201404864
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
1478547-X
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