Cluster
Assembled Materials
 Cluster assembled materials are solids in which
clusters serve as the fundamental building blocks. Cluster assemblies
provide a strategy for taking the size dependent properties of clusters
and placing them in a functional material. Cluster assemblies are of
great interest because they takes advantage of the exotic properties of
clusters which appear due to quantum confinement, and make them
accessible in a bulk material.
Cluster
assembled materials have several uniqure features. First, the cluster
may have tunable properties which allow for control of electronic
properties, optical properties, reactivity, and even magnetism. Further
tuning is possible by changing the counterion in ionic assemblies, and
by covalently linking the clusters with atoms and even other clusters.
References
Cluster Assembled Materials
1) S.A. Claridge, A.W. Castleman Jr., S.N.
Khanna, C.B. Murray, A. Sen, P.S. Weiss. "Cluster Assembled Materials"
ACS Nano 3 244 (2009).
2) A.C. Reber, S.N. Khanna, and A.W.
Castleman Jr. "Superatom Compounds, Clusters, and Assemblies: Ultra
Alkali Motifs and Architectures. " J. Amer. Chem Soc. 129 10189 (2007).
3) A.C. Reber, S.N. Khanna, P.J. Roach,
W.H. Woodward, and A.W. Castleman Jr. "Spin Accomodation and Reactivity
of Aluminum Based Clusters with O2" J. Amer.
Chem Soc. 129 16098 (2007).
4) P.D. Jadzinsky, G. Calero, C.J.
Ackerson, D.A. Bushnell and R.D. Kornberg. (2007)." Structure of a
thiol monolayer-protected gold nanoparticle at 1.1Åresolution." Science
318 5149 (2007)
5) M. Walter, "A unified view of
ligand-protected gold clusters as superatom complexes" Proc. Nat. Acad.
U.S.A. 105 9157 (2008).
6) A.W. Castleman Jr., and S.N. Khanna.
"Clusters, Superatoms, and Building Blocks of New Materials." J. Phys.
Chem. C 113 2664.
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