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The Homoleptic U(NCSe) 8 4– Anion in (Pr 4 N) 4 U(NCSe) 8 ·2CFCl 3 and Th(NCSe) 4 (OP(NMe 2 ) 3 ) 4 ·0.5CH 3 CN·0.5H 2 O: First Structurally Characterised Actinide Isoselenocyanates
Author(s) -
Crawford MargaretJane,
Karaghiosoff Konstantin,
Mayer Peter
Publication year - 2010
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.201000114
Subject(s) - homoleptic , chemistry , crystal structure , crystallography , ion , infrared spectroscopy , x ray crystallography , raman spectroscopy , actinide , spectroscopy , single crystal , stereochemistry , diffraction , physics , inorganic chemistry , metal , organic chemistry , optics , quantum mechanics
The neutral thorium complex Th(NCSe) 4 (OP(NMe 2 ) 3 ) 4 and homoleptic octa(isoselenocyanato)uranate anion U(NCSe) 8 4– in (Pr 4 N) 4 U(NCSe) 8 ·2CFCl 3 ( 1 ) were synthesised and structurally characterised. (Pr 4 N) 4 U(NCSe) 8 ·2CFCl 3 contains the U IV anion U(NCSe) 8 4– and was characterised using IR spectroscopy and single‐crystal X‐ray diffraction. Th(NCSe) 4 (OP(N(CH 3 ) 2 ) 3 ) 4 ·0.5CH 3 CN·0.5H 2 O ( 2 ) was characterised using IR and Raman spectroscopy, as well as 31 P{ 1 H}, 15 N{ 1 H}, 14 N{ 1 H}, 13 C{ 1 H}, 1 H and 77 Se NMR spectroscopy and structurally characterised using single‐crystal X‐ray diffraction. The U(NCSe) 8 4– anion and Th(NCSe) 4 (OP(N(CH 3 ) 2 ) 3 ) 4 ·0.5CH 3 CN·0.5H 2 O complex are the first structurally characterised actinide‐isoselenocyanates. The crystal structures shows an approximate square antiprismatic arrangement of the ligands around the actinide(IV) atoms.