{[P(o-tolyl)3]Br}2[Cu2Br6](Br2)—An Ionic Compound Containing Molecular Bromine
Authors:
- 5 March 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 47 (8) , 3084-3087
Abstract
Dark green cuboid-shaped crystals of the composition {[P(o-tolyl)3]Br}2[Cu2Br6](Br2) are obtained by the reaction of P(o-tolyl)3 and CuBr2 with Br2 in the ionic liquid [NMeBu3][N(Tf)2]. The bromocuprate crystallizes triclinic [space group P1̅; Z = 1; a = 10.667(2) Å; b = 10.695(2) Å; c = 11.582(2) Å; α = 74.42(3)°; β = 75.64(3)°; and γ = 85.68(3)°]. The title compound is constituted of {[P(o-tolyl)3]Br}+ cations and [Cu2Br6]2− anions and contains molecular dibromine [dBr−Br = 2.341(1) Å]. The latter is verified by thermogravimetry and mass spectrometry.Keywords
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