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Polyoxometalates: from inorganic chemistry to materials science
Polyoxometalates have been traditionally the subject of study of molecular inorganic chemistry. Yet, these polynuclear molecules, reminiscent of oxide clusters, present a wide range of structures and with them ideal frameworks for the deployment of a plethora of useful magnetic, electroionic, catalytic, bioactive and photochemical properties. With this in mind, a new trend towards the application of these remarkable species in materials science is beginning to develop. In this review we analyze this trend and discuss two main lines of thought for the application of polyoxometalates as materials. On the one hand, there is their use as clusters with inherently useful properties on themselves, a line which has produced fundamental studies of their magnetic, electronic or photoelectrochemical properties and has shown these clusters as models for quantum-sized oxides. On the other hand, the encapsulation or integration of polyoxometalates into organic, polymeric or inorganic matrices or substrates opens a whole new field within the area of hybrid materials for harnessing the multifunctional properties of these versatile species in a wide variety of applications, ranging from catalysis to energy storage to biomedicine.The authors would like to acknowledge partial
financial support from the Ministry of Science and
Technology (Spain) (Grants MAT2001-1709-C04-01,
MAT2002-04529-C03) and express his deepest gratitude
for the total dedication of their Ph.D. Dedicated to Prof.
Louis C.W. Baker (1921-2003), inspiring scientist and
cherished friend studentsPeer reviewe