Vladimir P. Fedin, Irina V. Kalinina, Alexander V. Virovets, Nina V. Podberezskaya, Ivan S. Neretin and Yuri L. Slovokhotov
High-temperature reaction of NbTe4 with KCN at 450 °C and further crystallization from aqueous solution produces an oxygen-centered tetranuclear niobium cubane-type complex, isolated here as K6[Nb4OTe4(CN)12]·K2CO3·KOH· 8H2O, and characterized by X-ray crystallography.