Hydroxocentered [(OH)Tl3]2+ triangle as a building unit in thallium compounds: synthesis and crystal structure of Tl4(OH)2CO3

  title={Hydroxocentered [(OH)Tl3]2+ triangle as a building unit in thallium compounds: synthesis and crystal structure of Tl4(OH)2CO3},
  author={Oleg I. Siidra and Sergey N. Britvin and Sergey V. Krivovichev},
Abstract The new thallium hydroxocarbonate Tl4(OH)2CO3 has been obtained by evaporation from aqueous solution. The crystal structure of the compound has been solved by direct methods: orthorhombic, Cmc21, a = 8.9963(18), b = 12.1500(30), c = 7.9542(15) Å, V = 869.43(3) Å3, R1 = 0.056 for 763 unique reflections with |Fo| ≥ 4σF. There are three symmetrically independent Tl+ cations in the structure. The O atoms of the OH- groups are triangularly coordinated by three Tl atoms that results in… 

Figures and Tables from this paper

Crystal structure of a novel synthetic compound, Pb2O(OH)I, and structure refinement of ‘iodolaurionite’, Pb(OH)I: hydroxo- and oxocentred units in Pb minerals and synthetic compounds
Abstract Yellow needles of ‘iodolaurionite’, Pb(OH)I, and a novel compound Pb2O(OH)I, have been prepared by hydrothermal reactions of PbO and PbI2 at 170°C. The crystal structure of ’iodolaurionite’,
Crystal chemistry of layered Pb oxychloride minerals with PbO-related structures: Part II. Crystal structure of vladkrivovichevite, [Pb32O18][Pb4Mn2O]Cl14(BO3)8·2H2O
Abstract The crystal structure of vladkrivovichevite, a new complex lead oxychloride mineral from the Kombat Mine, Grootfontein, Namibia, has been solved by direct methods and refined to R1 = 0.048
Synthesis and crystal structure of the disordered modification of Tl6Si2O7
A new compound β-Tl6Si2O7 has been investigated using the methods of IR spectroscopy and microprobe and X-ray diffraction analysis. The elementary unit parameters were as follows: P63/m, a = 9.673(2)
Structural complexity of lead silicates: Crystal structure of Pb21[Si7O22]2[Si4O13] and its comparison to hyttsjöite
Abstract The crystal structure of Pb21[Si7O22]2[Si4O13] has been solved on crystals grown by crystallization from melt. The compound is hexagonal, P63/m, a = 9.9244(5), c = 34.2357(16) Å, V =
Unique thallium mineralization in the fumaroles of the Tolbachik volcano, Kamchatka Peninsula, Russia. II. Karpovite, Tl2VO(SO4)2(H2O)
Abstract Karpovite, ideally Tl2VO(SO4)2(H2O), was found in a fumarole of the 1st cinder cone of the North Breach of the Great Fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula,


La3OCl[AsO3]2: Ein Lanthan‐Oxidchlorid‐Oxoarsenat(III) mit “lone‐pair”‐Kanalstruktur
La3OCl[AsO3]2: A Lanthanum Oxide Chloride Oxoarsenate(III) with a “Lone-Pair” Channel Structure La3OCl[AsO3]2 was prepared by the solid-state reaction between La2O3 and As2O3 using LaCl3 and
Polytypism of Layered Alkaline Hydroxides: Crystal Structure of TlOH
The crystal structure of TlOH was solved by direct methods: monoclinic, space group C121, a = 5.949(2), b = 6.220(2), c = 21.232(6) angstrom, beta = 91.590(5)degrees, V = 785.3(4) angstrom(3), R(1) =
Synthesis, structure, and electronic and physical properties of Tl2TeS3, the first characterized thallium(I) thiotellurate(IV)
The crystal structure of Tl2TeS3 (orthorhombic, Pnma, No. 62, Z = 4, Pearson code oP24, a = 815.5(2) pm, b = 1352.6(6) pm, c = 596.48(15) pm, 600 unique reflections with Io > 2σ(Io), R1 = 0.0541, wR2
Chains of OH−‐centered [Pb2+]3 Triangles in the Crystal Structure of Pb3(OH)2(NH2SO3)4
Colourless single crystals of Pb3(OH)2(NH2SO3)4 were obtained hydrothermally by the reaction of PbO with NH2SO3H in aqueous solution. In the crystal structure (orthorhombic, Z = 8, Pnma, a =
Tb3O2Cl[SeO3]2 and Tb5O4Cl3[SeO3]2: Oxide Chloride Oxoselenates(IV) of Trivalent Terbium with “Lone‐Pair” Channel or Layer Structures
Orthorhombic Tb3O2Cl[SeO3]2 (Pnma; a = 535.16(4), b = 1530.51(9), c = 1081.72(7) pm; Z = 4) is formed by reacting a stoichiometric mixture of Tb4O7, Tb, TbCl3, and SeO2 in a suitable molar ratio (12
Revised Tl(I)–O bond valence parameters and the structures of thallous dichromate and thallous uranyl phosphate hydrate
Abstract Thallium(I) has a 6s2 non-bonding pair of valence-shell electrons, and shows a wide range of coordination environments and mean bond distances to oxygen. Conventional bond valence parameters
Minerals and synthetic Pb(II) compounds with oxocentered tetrahedra: review and classification
The crystal structures of minerals and inorganic compounds with OPb4 oxocentered tetrahedra are reviewed. It is shown that the OPb4 tetrahedral units may link by sharing common Pb atoms to form