Preparation and precise structural determination of a second Ga84 cluster compound. A first hint for cluster doping and its fundamental consequences in the field of chemistry and physics of nanoscaled metalloid cluster material

Andreas Schnepf; Bettina Jee; Hansgeorg Schnöckel; Edgar Weckert; Alke Meents; Daniel Lübbert; Erik Herrling; Bernd Pilawa

doi:10.1021/ic035031k

Preparation and precise structural determination of a second Ga84 cluster compound. A first hint for cluster doping and its fundamental consequences in the field of chemistry and physics of nanoscaled metalloid cluster material

Inorg Chem. 2003 Dec 1;42(24):7731-3. doi: 10.1021/ic035031k.

Authors

Andreas Schnepf¹, Bettina Jee, Hansgeorg Schnöckel, Edgar Weckert, Alke Meents, Daniel Lübbert, Erik Herrling, Bernd Pilawa

Affiliation

¹ Institut für Anorganische Chemie der Universität Karlsruhe (TH), Engesserstr., Geb. 30.45, D-76128 Karlsruhe, Germany.

PMID: 14632487
DOI: 10.1021/ic035031k

Abstract

The Ga(84)R(20)(4-) [R = N(SiMe(3))(2)] species, which represents the largest metalloid cluster entity structurally characterized so far, has been electronically and topologically modified: Via changing the redox potential of the reaction solution, crystals different from those containing the Ga(84)R(20)(4-) anion can be isolated, featuring similar Ga(84)R(20)(3-) entities. An accurate crystal structure analysis via synchrotron radiation is presented, which might be the first step toward an understanding of the metallic conductivity and superconductivity of the Ga(84)R(20)(4-) cluster compound, physical properties which are singular in the field of metalloid clusters so far.