Superconductivity in low-valent oxoniobates

The structure of the low-temperature modification of BaNb20e should be ideal for the study of changes of electrical properties as a function of the extent of re- 

This work was supported financially by the Swedish Natural Science Research Council. 

Nanomaterials and Solid-state Cluster Chemistry Ed ted by P. Braurstein, L. A. Oro P. R. Raithby Copyright WILEY-VCH Vcriag GmbH, D-6946f) Wcinheim (Federal Republic of Germany), 1999 

4 Cluster Compounds Containing Mixed-Charge Cluster Units [M6Xi2] and [M6X,2 + or [M6Xn 2+ and Mo6Cl8l + (M=Nb, Ta X = Cl,Br) 

---