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Nesper group > research > topics > zintl phases
research topics
> Zintl phases
> Nanotechnology
> Intermetallic phases
> Electrochemistry

Hard, highly melting materials
  Precursor derived ceramics
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Zintl phases contain polynuclear semimetal anions which exhibit an extraordinary structural variety with zero-, one-, two-, or three dimensional linkages. They exhibit ionic as well as covalent interactions and are between classical valence compounds and intermetallic phases. In a traditional understanding they are semiconductors, however according to novel investigations they may also be low dimensional metals. In any case, all valence electrons can be assigned to the polyanionic centers, the bonding of which follows valence rules which apply for localized bonding.  


Selected publications:

F. Zürcher and R. Nesper
"Cationic channels with partial anion occupation in the Zintl phases Ba2Mg12Ge7.33 and Ba6Mg17.4Li2.6Ge12O0.64"
Z. Anorg.Allg.Chem., 2002, 628/7,1581-1589
Keywords: Zintl phases, Zintl anions, Supercations, Germanides, Crystal structures, ELF (electron localization function)
abstract | full text

F. Zürcher, S. Wengert, R. Nesper
Crystal structure of barium dimagnesium dilithium disilicide, BaMg2Li2Si2, and of barium dimagnesium dilithium digermanide, BaLi2Mg2Ge2.
Z. Kristallogr. - New Cryst. Struc. 2001, 216(4), 503-504


"Synthesis, Structure, and Properties of Solids"
Swiss National Science Foundation Nr. 20-66717.01

"Nano Cage Materials"
IHP - European - Network


Electron Localization Function - ELF
ELF-homepage (Editor: Frank R. Wagner)




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modified: 30 August, 2012 by | © ETH Zürich and the authors

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