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Abstract
In the orthorhombic modification of TeO2 (tellurite) each tellurium atom is surrounded by four oxygen atoms at an average distance of 2.0 Å, similar to the tetragonal TeO2 (paratellurite). The coordination polyhedron is a slightly distorted trigonal dipyramid, with both axial positions and only two of the three equatorial ones being occupied by oxygen atoms. Pairs of these TeO4 groups are connected by a common edge to form Te2O6 units and these are furthermore linked by the four “free” oxygen corners to ∞2Te[4O]O2[2Te] sheets parallel to the perfect cleavage.
Published Online: 2010-07-28
Published in Print: 1967-06
