ChemInform Abstract: Bell‐Like [Ga₅] Clusters in Eu₃Li_5+xGa_5‐x (x = 0.15).

Abstract

Bell-Like [Ga 5 ] Clusters in Eu 3 Li 5+xGa 5-x (x = 0.15). -Eu 3 Li 5.15 Ga 4.85 is synthesized from the elements at 900°C for 2 h followed by annealing at 300°C for 10 months. The samples are characterized by powder XRD, magnetization measurements, and TB-LMTO-ASA electronic structure calculations. The crystal structure is determined by single crystal XRD. Eu3Li5.15Ga4.85 crystallizes in the space group R3m with Z = 6. The structure contains [Eu 6 ] octahedra and bell-like [Ga 5 ] clusters separated by lithium cations. The new type of discrete [Ga5] cluster has one single-, one four-, and three three-bonded atoms, and can be alternatively described as a tetrahedron with one pendant atom attached. -(FEDORCHUK, A.; PROTS, Y.; SCHNELLE, W.; GRIN*, Y.; Eur. J. Inorg. Chem. 2011, 26, 3904-3908, http://dx.