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Tungsten(VI) and Tungsten(V) Fluoride Complexes
Author(s) -
ElKurdi Said,
AlTerkawi AbdalAzim,
Schmidt Bernd M.,
Dimitrov Anton,
Seppelt Konrad
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200902307
Subject(s) - tungsten , octahedron , crystallography , crystal structure , trigonal crystal system , chemistry , group (periodic table) , fluoride , stereochemistry , inorganic chemistry , organic chemistry
WF 6 reacts with phosphines R 3 P forming 1:1 compounds. With R=P(CH 3 ) 3 the coordination around the tungsten atom is capped trigonal prismatic, with R=P(CH 3 ) 2 C 6 H 5 the coordination is capped octahedral, as established by single‐crystal structure determinations: [(CH 3 ) 3 PWF 6 ]: a =752.5(21), b =945.7(24), c =629.8(18) pm. β =110.36(13)°, space group Cm , Z =2; [(CH 3 ) 2 (C 6 H 5 )PWF 6 ]: a =762.2(2), b =1123.5(2), c =2647.5(6) pm, space group Pbca , Z =8. [(CF 3 CH 2 ) 2 NWF 5 ] reacts smoothly with P(C 6 H 5 ) 3 forming known P(C 6 H 5 ) 3 (F) 2 and [(CF 3 CH 2 ) 2 NWF 4 P(C 6 H 5 ) 3 ], a stable, green, molecular species, identified among other methods with an crystal structure determination: a =914.9(1), b =956.0(1), c =1449.8(2) pm, α =7.642(4), β =81.648(3), γ =81.519°, space group P $\bar 1$ , Z =2.