[{(tBuC5H4)2Nb(CO)}3Co9(CO)8Te6⋅3 Cr(CO)5]: Unusual Stabilization of a Cubic Body‐Centered Metal Telluride Cluster by Peripheral Complex Fragments

: The Te bridges of the [Co9 (CO)8 Te6 ] cube of 1 serve as anchors for three Cp$\rm{^{\prime }_{2}}$Nb(CO) (Cp'=tBuC5 H4 ) and three Cr(CO)5 fragments. This new principle allows the synthesis and structural comparison of clusters with 122-124 metal valence electrons.