Polyoxometalates Made of Gold: The Polyoxoaurate [Au4~(III)As4~VO_(20)]~(8-)

摘要

Polyoxometalates (POMs, discrete nanosized metal oxo anions) are an increasingly fascinating object of study owing to their enormous structural diversity and unique combination of properties, such as thermal and oxidative stability, tunability of acidity and redox activity, and ability to activate easily accessible "green" oxidants (O2 and H2O2), thus making them attractive for applications in many different areas, for example, in catalysis, magnetism, nanotechnology, and medicine. Although this class of compounds was discovered as far back as 1826, until recently POMs were known predominantly for Group 5 and 6 addenda metals in high oxidation states (e.g. W~(6+), V~(5+)).