EUROMAT 2009 European Congress and Exhibition on Advanced Materials and Processes, Glasgow, United Kingdom, 7 - 10 September 2009, pp.23, (Full Text)
Homonuclear molybdenum oxo species have attracted considerable attention in the past decades in the area
of biochemical simulations, catalyst-designs, stereochemistry and nano-materials.[1] Not only that,
heterometallic Mo-transition metal (MT) chalcogenide clusters play an important role in a large group of
enzymes and are useful in heterogeneous catalysis as well as in transparent conducting materials (TCO’s)
applications. In order to be able to mimic structure-function relationships Mo-Mo multiple bonds in such
compounds appear as attractive species for facile tuning functionality by changing valence states. [2] Up to
now, there is no precedent for low-valent molybdenum oxo systems embedded in a heterometal oxide matrix,
although such systems are crucial for applications in and understanding of hereogeneous catalysis.We wish to
report the synthesis and surprising structures of the first heterobimetallic zink-molydenum oxo clusters
bearing a Mo-Mo multiple bond. The unique compounds could be single source precursors for a novel class of
TCO materials. This and other facts will be discussed. [1] F. E. Kühn, A. M. Santos, M. Abrantes, Chem. Rev.
2006, 106, 2455 [2] a) M. H. Chisholm, D. L. Clark, M. J. Hampden-Smith, D. H. Hoffman, Angew. Chem. Int.
Ed. Engl. 1989, 28, 432 b) M. H. Chisholm, A. M. Macintosh, Chem. Rev. 2005, 105, 2949 [3] J.-G. Ma, Y.Aksu, L. J. Gregoriades, J. Sauer, M. Driess (in preparation)