Sodium potassium ditellurate(VI) hexahydrate

The Hydrous Sodium Oxotellurates(VI) Na[TeO(OH)5], Na2[TeO2(OH)4], Na4[Te2O6(OH)4](H2O)6, and a Third Polymorph of Anhydrous Na2[TeO4]

“…The crystal chemistry of corresponding oxotellurate(VI) compounds was the subject of various reviews, [24][25][26] the latest being from the year 2016, [27] in which characteristic structural features are discussed in detail. …”

The High‐Pressure Polymorph of Ca4Te5O14 and the Mixed‐Valent Compound Ca13TeVI2/3TeIV3.75O15(BO3)4(OH)3

“…More detailed discussions regarding the boundary of the first coordination sphere of Te IV O x polyhedra are given in ref , ,. with the crystal chemistry of oxotellurates(IV) reviewed in ref . The Te–O bond lengths and O–Te–O angles of the three trigonal‐pyramidal units (overall mean 1.880 Å, 95.16°) are characteristic of TeO 3 units.…”

“…The resulting distorted [Te1O 3 (OH)] polyhedron has the shape of a bis‐phenoid. The Te2 site, located at a site with symmetry 3 and occupationally disordered with an occupancy of two thirds, is surrounded by six oxygen atoms in octahedral conformation characteristic of a tellurium atom in the oxidation state +VI , , . The corresponding bond length of 1.971 Å is slightly longer than the mean of 1.93(4) Å calculated for more than 1200 Te VI –O bonds .…”

Potassium Ion Conductivity in the Cubic Labyrinth of a Piezoelectric, Antiferromagnetic Oxoferrate(III) Tellurate(VI)

“…[6] The latter is usually attributed to a stereoactive lone pair. Various reviews report about the crystal chemistry of tellurates, [7][8][9] with a recent paper discussing characteristic structural features in detail. [5] Iron(III) and tellurium(VI) differ considerably in several properties, for instance, coordination behavior by oxygen, presence of unpaired d electrons and hence magnetism and color, and also in natural abundance, iron having overwhelming availability on Earth.…”

“… [6] The latter is usually attributed to a stereoactive lone pair. Various reviews report about the crystal chemistry of tellurates,[ 7 , 8 , 9 ] with a recent paper discussing characteristic structural features in detail. [5] …”