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The Vanadium(V) Oxoazides [VO(N3)3], [(bipy)VO(N3)3], and [VO(N3)5](2-).

Angewandte Chemie (International ed. in English) (2015-06-16)
Ralf Haiges, Monica Vasiliu, David A Dixon, Karl O Christe
ABSTRACT

Vanadium(V) oxoazide [VO(N3)3] was prepared through a fluoride-azide exchange reaction between [VOF3] and Me3SiN3 in acetonitrile solution. When the highly impact- and friction-sensitive compound [VO(N3)3] was reacted with 2,2′-bipyridine, the adduct [(bipy)VO(N3)3] was isolated. The reaction of [VO(N3)3] with [PPh4]N3 resulted in the formation and isolation of the salt [PPh4]2[VO(N3)5]. The adduct [(bipy)VO(N3)3] and the salt [PPh4]23[VO(N3)5] were characterized by vibrational spectroscopy and single-crystal X-ray structure determination, making these compounds the first structurally characterized vanadium(V) azides.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Azidotrimethylsilane, 95%
Sigma-Aldrich
2,2′-Bipyridyl, ReagentPlus®, ≥99%