Synthesis and Reactivity of Mono- and Binuclear Oxovanadium Complexes
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Authors
Williams, Paul
Issue Date
1998
Type
Thesis
Language
en_US
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Abstract
Due to the recent increase in understanding of vanadium's role in the biological
world, it is desirous to synthesize many metallorganic complexes of vanadium. As
vanadium is frequently found complexed to oxygen or nitrogen atoms in biological
systems, several Schiff base complexes were synthesized and characterized. These
complexes were of the form VO(IV)(sahbase) (baseH4 = 1,2-diaminoethane, 1,3-
diaminopropane, and a-phenylenediamine). These complexes were then chlorinated with
thionyl chloride or oxidized with nitrosonium hexafluorophosphate. In addition, because
vanadium(IV) has a d 1 electronic configuration, this simplifies any of its magnetic
interactions. Large amounts of the macro cyclic metallorganic complex [(VOhli!::
OAc)(L)t BF4- were desired to study the magnetic properties of two adjacent but not
bonded vanadium atoms in a variable temperature magnetic susceptometer. The existing
synthesis needed to be optimized such that large amounts of the pure compound could be
synthesized easily.
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