Olivier Blacque

Four tetranuclear cubane-type complexes with general formula [Ni 4 (X,X′-L) 4 (μ 3 -OMe) 4 (MeOH) 4 were synthesized to investigate the effects of halogen groups in salicylaldehyde ligand on the magnetic properties.

We report on the discovery of Nb 4 SiSb 2 . This compound is a new superconductor with a T c of 1.6 K. The channel void positions of this phase can be partly filled with Cu, Pd, or Pt, which leads to a lowering of the transition temperature.