From AgTeO₂F and Ag₂(TeO₂F₂) to Ag₃F₃(TeF₆)(TeO₂)₁₂: the first silver tellurite oxyfluorides with linear and nonlinear optical properties

Abstract

The first examples of silver fluorotellurites, namely, AgTeO2F and Ag2(TeO2F2), as well as the first silver tellurite fluoride, Ag3F3(TeF6)(TeO2)12, have been obtained successfully under mild hydrothermal conditions. AgTeO2F displays a...

Two Purely Inorganic Cationic Tellurite Materials Based on Group IB Metal Tetrafluoroborates with Similar Lamellar Cationic Layers: [Cu2F(Te2O5)](BF4) and [Ag18O2(Te4O9)4(Te3O8)(BF4)2]·2HBF4

“…The IR spectra for both compounds revealed that they have similar IR absorptions. The bands attributed to the Te–O vibrations over the range of 400–780 cm –1 are in good agreement with the reported tellurites. ,− More absorption bands are observed than in regular metal tetrafluoroborates as a result of the disordered BF 4 – anion’s reduced symmetry, and the absorption bands in the lower wavenumber range are more complex due to the interaction of tellurites and tetrafluoroborates’ vibrations. The absorptions at 1086 and 1056 cm –1 for compound 1 and 1076 and 1023 cm –1 for compound 2 may be attributed to the vibrations of B–F bonds in both compounds .…”

“…The range of the interatomic distance of Ag–O is 2.3207(6)–2.6973(6) Å, and the interatomic distances of Ag–F are 2.6491(2) and 2.8302(2) Å, respectively. The Ag–O interatomic distances are comparable to the corresponding interatomic distance reported in silver tellurites, though the Ag–F interatomic distance is obviously longer than the reported ones, , which suggests the very weak interaction between the silver center and the ligand of fluorine atoms. The sum of the BVs for five silver centers in compound 2 is determined according to the BV model mentioned before .…”

“…We learned that Group IB metal-based cationic tellurites with fluorine components have received very little research in light of the aforementioned issues and thorough research, although quite a few halides containing tellurites (other than fluorine) have undergone substantial research to date. − We intended to synthesize functional inorganic cationic materials with tellurite materials not only because of the success of the produced cationic framework structure and potential applications for anionic pollutant adsorption but also because of their theoretically higher thermal and chemical stability as solid adsorbent materials based on pure inorganic frameworks than the corresponding metal–organic hybrid materials. Herein, we present the hydrothermal synthesis of two new, fully inorganic cationic tellurite materials based on Group IB metal tetrafluoroborates: [Cu 2 F­(Te 2 O 5 )]­(BF 4 ), 1 , and [Ag 18 O 2 (Te 4 O 9 ) 4 (Te 3 O 8 )­(BF 4 ) 2 ]·2HBF 4 , 2 , as well as their structural characterization.…”

AAl(Te4O10) (A = Na, Ag) and K2Ga2(HTe6O16)(HTeO3): Three Aluminum/Gallium Tellurites with Large Birefringence and Wide Band Gap

“…1−10 Te IV cations when coordinated with O atoms can form three different basic anionic building blocks, namely, [TeO 3 ] 2− , [TeO 4 ] 4− , and [TeO 5 ] 6− , such as the tellurite groups in Ba(MoO 2 F) 2 (TeO 3 ) 2 , 11 Li 7 (TeO 3 ) 3 F, 12 Ba-(MoOF 2 )(TeO 4 ), 13 Bi 2 TeO 5 , 14 and so on. These basic anionic building blocks can be further polymerized into zerodimensional (0D) clusters, one-dimensional (1D) chains, two-dimensional (2D) layers, and even three-dimensional (3D) network structures, such as 0D clusters in Sr 4 (Te 3 O 8 )-C l 4 , 1 5 R b [ T e 2 O 4 ( O H ) 5 ] , 1 6 C s Y T e 3 O 8 , 1 7 a n d Ba 2 V 4 O 8 (Te 3 O 10 ), 18 1D chains in BaLiTe 2 O 5 Cl, 19 Y 2 (Te 4 O 10 )(SO 4 ), 20 Cd 7 Cl 8 (Te 7 O 17 ), 21 and Nd 2 (MoO 4 )-(Te 4 O 10 ), 22 2D layers in Zn 4 (Te 3 O 7 ) 2 (SO 4 ) 2 (H 2 O), 23 NdTe 2 O 5 Br, 24 Ba 3 PbTe 6 O 16 , 25 and RbNaTe 8 O 14 (OH) 6 • 8H 2 O, 26 and 3D networks in Ag 3 F 3 (TeF 6 )(TeO 2 ) 12 27 (Figure S1). Additionally, when Te IV is coordinated with F and O atoms simultaneously, new basic building blocks TeO 2 F, TeO 2 F 2 , and TeF 3 will be formed, such as the fluorotellurite groups in AgTeO 2 F, 27 Bi 3 F(TeO 3 )(TeO 2 F 2 ) 3 , 28a HgTeO 2 F-(OH), 29 and BaF 2 TeF 2 (OH) 2 .…”

“…They may be used as nonlinear-optical (NLO) materials, birefringent materials, magnetic materials, and other applications. − Te IV cations when coordinated with O atoms can form three different basic anionic building blocks, namely, [TeO 3 ] 2– , [TeO 4 ] 4– , and [TeO 5 ] 6– , such as the tellurite groups in Ba­(MoO 2 F) 2 (TeO 3 ) 2 , Li 7 (TeO 3 ) 3 F, Ba­(MoOF 2 )­(TeO 4 ), Bi 2 TeO 5 , and so on. These basic anionic building blocks can be further polymerized into zero-dimensional (0D) clusters, one-dimensional (1D) chains, two-dimensional (2D) layers, and even three-dimensional (3D) network structures, such as 0D clusters in Sr 4 (Te 3 O 8 )­Cl 4 , Rb­[Te 2 O 4 (OH) 5 ], CsYTe 3 O 8 , and Ba 2 V 4 O 8 (Te 3 O 10 ), 1D chains in BaLiTe 2 O 5 Cl, Y 2 (Te 4 O 10 )­(SO 4 ), Cd 7 Cl 8 (Te 7 O 17 ), and Nd 2 (MoO 4 )­(Te 4 O 10 ), 2D layers in Zn 4 (Te 3 O 7 ) 2 (SO 4 ) 2 (H 2 O), NdTe 2 O 5 Br, Ba 3 PbTe 6 O 16 , and RbNaTe 8 O 14 (OH) 6 ·8H 2 O, and 3D networks in Ag 3 F 3 (TeF 6 )­(TeO 2 ) 12 (Figure S1). Additionally, when Te IV is coordinated with F and O atoms simultaneously, new basic building blocks TeO 2 F, TeO 2 F 2 , and TeF 3 will be formed, such as the fluorotellurite groups in AgTeO 2 F, Bi 3 F­(TeO 3 )­(TeO 2 F 2 ) 3 , HgTeO 2 F­(OH), and BaF 2 TeF 2 (OH) 2 …”