Abstract
The new infinite chain compound Ta{sub 4}SiTe{sub 4} has been prepared by reaction of the elements at high temperature. The structure was refined in the orthorhombic space group Pbam with Z = 4 and lattice constants a = 10.536 (3), b = 18.275 (5), and c = 4.799 (1) {angstrom} to a final R = 6.1 %, R{sub W} = 8.2%. Ta{sub 4}SiTe{sub 4} is a new structure type and represents a new class of compounds, Ta{sub 4}ZTe{sub 4}, with Z = Cr, Fe, Co, Ni, Al, or Si. The structure consists of Si-centered chains of antiprismatically stacked Ta squares that are edge bridged by Te. 18 refs., 2 figs., 3 tabs.
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