Filled trivacant icosahedra as building fragments in 17-atom endohedral germanides [TM2@Ge17]n− (TM = Co, Ni). Issue 39 (27th September 2021)

• Record Type: Journal Article
• Authors: Wallach, Christoph; Selic, Yasmin; Witzel, Benedikt J. L.; Klein, Wilhelm; Fässler, Thomas F.
• Is Part Of: Dalton transactions. Volume 50:Issue 39(2021)
• Page Start: 13671
• Page End: 13675
• Publication Date: 2021-09-27
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt03078g
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Endohedral germanides [ TM 2 @Ge17 ] n − ( TM = Co, Ni) comprising structure motifs of twelve-atom icosahedral clusters mark intermediates for cluster growth mechanisms. Abstract : The syntheses and the characterization of two 17-atom endohedral Ge clusters, [Co2 @Ge17 ] 6− (1a ) and [Ni2 @Ge17 ] 4− (2a ), are reported. The anions 1a and 2a, which close the gap between the known 16- and 18-atom Ge clusters, are investigated by single crystal X-ray diffraction and by quantum chemical calculations. The structures mark a new example on the pathway for cluster growth towards larger clusters with icosahedral symmetry. Furthermore, the [Co@Ge10 ] 3− anion (3a ) is obtained from liquid ammonia.