Noble Metals in Polyoxometalates

Abstract

Polyoxometalates containing noble metal ions, such as ruthenium, osmium, rhodium, palladium, platinum, silver and gold, are a structurally diverse class of compounds. They include both classical heteropolyanions (vanadates, molybdates, tungstates) in which noble metals are present as heteroatoms, as well as the recently discovered class of polyoxometalates with noble metal "addenda" atoms. The focus of this Review is on complexes that should, in principle, exist as discrete molecular species in solution, and which are therefore of interest for their reactivity, their future synthetic utility and potential applications, for example, in catalysis or nanoscience.

Synthesis, Structure, and Characterization of In10-Containing Open-Wells–Dawson Polyoxometalate

“…Polyoxometalates (POMs) are discrete metal oxide clusters that are of current interest as soluble metal oxides, as well as for their application in catalysis, medicine, and materials science [1][2][3][4][5][6][7][8][9][10][11][12][13]. Recently, open-Wells-Dawson POMs have been reported as an emerging class of POMs [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

Self-Assembly in Polyoxometalate and Metal Coordination-Based Systems: Synthetic Approaches and Developments

“…The fundamental requirements for a transition metal to serve as addenda are the ability to adopt a variety of coordination modes (mainly 4 to 6) in response to acidification, have high positive charge, and are capable of pπ-dπ interactions. However, there are a few examples that deviate from this set of rules, as reported by Kortz et al, where the authors demonstrated the preparation and characterization of metal oxides made of noble metals such as Au [16,17] and Pd [18][19][20][21][22] in the presence of supporting organic or inorganic ligands.…”

β,β-Isomer of Open-Wells–Dawson Polyoxometalate Containing a Tetra-Iron(III) Hydroxide Cluster: [{Fe4(H2O)(OH)5}(β,β-Si2W18O66)]9−

“…Polyoxometalates (POMs) are discrete metal oxide clusters that are of interest as soluble metal oxides, with applications in catalysis, medicine, and materials science [1][2][3][4][5][6][7][8][9][10][11][12][13]. Recently, the open-Wells-Dawson POMs have been an emerging class of POMs [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] [29].…”