1
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Geng L. The crystal structure of KNa3Te8O18·5H2O exhibiting a ∞
2[Te4O9]2− layer. Z KRIST-NEW CRYST ST 2021. [DOI: 10.1515/ncrs-2021-0415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
KNa3Te8O18·5H2O, triclinic,
P
1
‾
$P\overline{1}$
(no. 2), a = 8.5701(4) Å, b = 8.7278(4) Å, c = 10.4082(5) Å, α = 67.582(2)°, β = 66.167(2)°, γ = 77.861(2)°, V = 656.85(6) Å3, Z = 1, R
gt
(F) = 0.0180, wR
ref(F
2) = 0.0452, T = 296(2) K.
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Affiliation(s)
- Lei Geng
- School of Physics and Physical Engineering, Qufu Normal University , Qufu 273165 , China
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2
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Chen YG, Yang N, Yao XN, Li CB, Guo Y, Zhang XM. Synergetic Influence of Alkali-Metal and Lone-Pair Cations on Frameworks of Tellurites. Inorg Chem 2018; 57:5406-5412. [DOI: 10.1021/acs.inorgchem.8b00266] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi-Gang Chen
- Key Laboratory of Magnetic Molecules and Magnetic Information Material of Ministry of Education, School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, China
| | - Nan Yang
- Key Laboratory of Magnetic Molecules and Magnetic Information Material of Ministry of Education, School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, China
| | - Xiao-Ni Yao
- Key Laboratory of Magnetic Molecules and Magnetic Information Material of Ministry of Education, School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, China
| | - Cheng-Bo Li
- Anyang Institute of Technology, Anyang 455000, China
| | - Yao Guo
- Anyang Institute of Technology, Anyang 455000, China
| | - Xian-Ming Zhang
- Key Laboratory of Magnetic Molecules and Magnetic Information Material of Ministry of Education, School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, China
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3
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Liang ML, Marsh M, Shang XX, Mao JG, Albrecht-Schmitt TE, Kong F. New vanadium tellurites: Syntheses, structures, optical properties of noncentrosymmetric VTeO 4 (OH), centrosymmetric Ba 2 V 4 O 8 (Te 3 O 10 ). J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Kim Y, Lee DW, Ok KM. Rich Structural Chemistry in New Alkali Metal Yttrium Tellurites: Three-Dimensional Frameworks of NaYTe4O10, KY(TeO3)2, RbY(TeO3)2, and a Novel Variant of Hexagonal Tungsten Bronze, CsYTe3O8. Inorg Chem 2014; 54:389-95. [DOI: 10.1021/ic502724n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youngkwon Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Dong Woo Lee
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Kang Min Ok
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
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5
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Bae SW, Kim CY, Lee DW, Ok KM. Cooperative Effects of Cation Size and Variable Coordination Modes of Te4+ on the Frameworks of New Alkali Metal Indium Tellurites, NaIn(TeO3)2, KIn(TeO3)2, RbInTe3O8, and CsInTe3O8. Inorg Chem 2014; 53:11328-34. [DOI: 10.1021/ic502108a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Su-whan Bae
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Choong-Yeol Kim
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Dong Woo Lee
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Kang Min Ok
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
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6
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Lee DW, Ok KM. New Polymorphs of Ternary Sodium Tellurium Oxides: Hydrothermal Synthesis, Structure Determination, and Characterization of β-Na2Te4O9 and Na2Te2O6·1.5H2O. Inorg Chem 2014; 53:10642-8. [DOI: 10.1021/ic501739u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Woo Lee
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Kang Min Ok
- Department
of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea
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7
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Hart RT, Zwanziger JW, Werner-Zwanziger U, Yates JR. On the Spectral Similarity of Bridging and Nonbridging Oxygen in Tellurites. J Phys Chem A 2005; 109:7636-41. [PMID: 16834135 DOI: 10.1021/jp052405h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We show by high field (17)O solid-state nuclear magnetic resonance (NMR) and by ab initio calculations of both the NMR and the oxygen 1s photoelectron spectra that the oxygen sites in tellurite glasses show no spectroscopic distinction, even when comparing bridging and nonbridging sites. This is remarkable because two such sites differ formally by a full electronic charge, and they are readily distinguished by these same methods in silicates. We argue that this similarity arises from the symmetry breaking that occurs when the original TeO(2) crystal solid forms, due to the pseudo-Jahn-Teller distortion induced by the two additional valence electrons present in Te(IV) as compared to Si(IV).
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Affiliation(s)
- R T Hart
- Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, Illinois, USA
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8
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Holland D, Bailey J, Ward G, Turner B, Tierney P, Dupree R. A 125Te and 23Na NMR investigation of the structure and crystallisation of sodium tellurite glasses. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2005; 27:16-27. [PMID: 15589724 DOI: 10.1016/j.ssnmr.2004.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2004] [Revised: 06/09/2004] [Indexed: 05/24/2023]
Abstract
125Te static nuclear magnetic resonance (NMR) and 23Na and 125Te magic angle spinning (MAS) NMR have been used, in conjunction with X-ray diffraction, to examine the structure and crystallisation behaviour of glasses of composition xNa2O.(1-x)TeO2 (0.075 x 0.4). The MAS NMR 23Na spectra from the glasses are broad and featureless but shift by approximately +5 ppm with increased x, i.e. as the system becomes more ionic. The static 125Te NMR spectra show an increase in axial symmetry with increasing x, indicating a shift from predominantly [TeO4] to [TeO3] structural units. The 23Na and 125Te spectra from the crystallised samples have been fitted to obtain information on the sites in the metastable crystal phases, which are the first to form on heating and which are therefore more closely related to the glass structure than thermodynamically stable crystal phases. New sodium tellurite phases are reported, including a sodium stabilised, face centred cubic phase related to delta-TeO2; a metastable form of Na2Te4O9 containing 3 sodium and 4 tellurium sites; and a metastable form of Na2Te2O5 containing 2 sodium sites. There is evidence of oxidation of TeIV to TeVI occurring in glasses with high values of x and, at x=0.40 and 0.50 (outside the glass forming range), some sodium metatellurate (Na2TeO4) is formed at the same time as sodium metatellurite (Na2TeO3). The 125Te shift is very sensitive to environment within the sodium tellurite system, covering more than 320 ppm, with anisotropies varying from 640 to 1540 ppm. The lack of features in the 125Te spectra of the glass phases, combined with the large shift range and high but variable anisotropy, means than it is not possible to obtain a unique fit to any presumed species present. Furthermore, the chemical shift anisotropy parameters for three of the four Te sites in the Na2Te4O9 phase are found to lie outside the range used for previous simulations of glass spectra.
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Affiliation(s)
- D Holland
- Department of Physics, University of Warwick, Coventry CV4 7AL, UK
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9
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Affiliation(s)
- J. C. McLaughlin
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405
| | - S. L. Tagg
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405
| | - J. W. Zwanziger
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405
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10
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McLaughlin JC, Zwanziger JW. Modeling glasses using the reverse Monte Carlo algorithm: addition of nuclear magnetic resonance and expanded coordination number constraints. J Mol Graph Model 1999; 17:275-84. [PMID: 10840687 DOI: 10.1016/s1093-3263(99)00035-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In simple oxide glasses the coordination number and oxidation state of the glass-forming element can be predicted directly from the "8--n" rule. Tellurite glasses, however, are unusual in that the coordination number of oxygen around tellurium varies without a corresponding change in the oxidation state of tellurium. To model sodium tellurite glasses successfully using the reverse Monte Carlo algorithm several new constraints have been added. Changes include extending the original coordination constraint to allow multiple coordination numbers, and the addition of a new coordination constraint to keep the oxidation state of tellurium constant by limiting the number of bridging and nonbridging oxygens bonded to each tellurium atom. In addition, the second moment of the distribution of dipolar couplings for sodium atoms obtained from a spin-echo NMR experiment was added as a new constraint. The resulting real-space models are presented and the effectiveness of the new constraints is discussed.
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Affiliation(s)
- J C McLaughlin
- Department of Chemistry, Indiana University, Bloomington 47405, USA
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11
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Becker CR, Tagg SL, Huffman JC, Zwanziger JW. Crystal Structures of Potassium Tetratellurite, K2Te4O9, and Potassium Ditellurite, K2Te2O5, and Structural Trends in Solid Alkali Tellurites. Inorg Chem 1997. [DOI: 10.1021/ic970497m] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. R. Becker
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - S. L. Tagg
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - J. C. Huffman
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - J. W. Zwanziger
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
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