Nesper group home pageNesper group research topicsweb projects and educationProf. Nesper, group members and former membersinformations and faqsselected linksETH Zurich home page

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

Hard, highly melting materials
  Precursor derived ceramics
> Theory
> Visualization
> Topology

equipment

publications

thesis

poster

patents


     
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

Funding:

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

"Nano Cage Materials"
IHP - European - Network

Links:

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

 

 

 

ETH Zürich | ETH chemistry department | ETH inorganic chemistry | Nesper group | impressum | top of this page

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

to ETH Zuerich