Premium
Contrasting cyclo ‐P 3 Ligand Transfer Reactivity of Valence‐Isoelectronic Aryloxide Complexes [(P 3 )Nb(ODipp) 3 ] – and [(P 3 )W(ODipp) 3 ]
Author(s) -
Breunig Jens M.,
Tofan Daniel,
Cummins Christopher C.
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201301140
Subject(s) - chemistry , valence (chemistry) , toluene , ligand (biochemistry) , ion , yield (engineering) , reactivity (psychology) , crystallography , medicinal chemistry , stereochemistry , organic chemistry , medicine , biochemistry , materials science , receptor , pathology , metallurgy , alternative medicine
Reduction of mer ‐Cl 3 W(ODipp) 3 with Na/Hg in the presence of P 4 in toluene afforded the orange complex (η 3 ‐P 3 )W(ODipp) 3 ( δ 31 P= –156 ppm, 10 % isolated yield). Unlike the valence‐isoelectronic anion [(η 3 ‐P 3 )Nb(ODipp) 3 ] – , treatment with AsCl 3 of the neutral (η 3 ‐P 3 )W(ODipp) 3 did not transfer the cyclo ‐P 3 ligand to generate AsP 3 . Instead, this complex underwent aryloxide ligand transfer to form the red complex (η 3 ‐P 3 )W(Cl)(ODipp) 2 (THF) ( δ 31 P= –143 ppm, 32 % isolated yield).