THE [TH(12)N(6)X(41)](13-) CLUSTER - AN EXTENSION OF RARE-EARTH-METALCLUSTER CHEMISTRY

Authors
BRAUN TP SIMON A UENO F BOTTCHER F
Citation
Tp. Braun et al., THE [TH(12)N(6)X(41)](13-) CLUSTER - AN EXTENSION OF RARE-EARTH-METALCLUSTER CHEMISTRY, European journal of solid state and inorganic chemistry, 33(2-3), 1996, pp. 251-264
Citations number
51
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
European journal of solid state and inorganic chemistry → ACNP
ISSN journal
09924361
Volume
33
Issue
2-3
Year of publication
1996
Pages
251 - 264
Database
ISI
SICI code
0992-4361(1996)33:2-3<251:T[C-AE>2.0.ZU;2-Y
Abstract
The synthesis, crystal structure, and chemicaibondtng of the compounds ATh(12)N(6)X(29) (A = Li,...,Rb;X = Cl, Br) are reported. ATh(12)N(6) Cl(29) crystallize in the triclinic space group P (1) over bar with Z = 1, the bromides ATh(12)N(6)Br(29) crystallize in the orthorhombic sp ace group P nnm with two formula units per unit cell. Both structures contain the novel cluster type [Th(12)N(6)X(41)](13-), formed by the c yclic condensation of six nitrogen-centered thorium tetrahedra. Accord ing to Extended Huckel-type calculations, these compounds are stabiliz ed by the formation of a cage orbital in the octahedral center of the cluster unit.