Synthesis, Structure, and Optical Properties of BiCu₂(TeO₃)(SO₄)(OH)₃

Abstract

The hetero-bimetallic polyanionic compound BiCu 2 (TeO 3 )(SO 4 )(OH) 3 was synthesized using hydrothermal techniques. Single-crystal X-ray diffraction analysis revealed that title compound crystallizes in the monoclinic space group P2 1 /n (No. 14) with lattice parameters a = 9.5513(15), b = 6.3022(10), c = 13.955(2) Å, β = 102.845(3)°, and Z = 4. The structure of title compound is a three-dimensional tunnel framework consisting of edgesharing two-dimensional [Cu 3 O 10 ] 14layers linked

Synthesis, Crystal Structures, Spectroscopic Characterization, and Thermal Analyses of the New Bismuth Sulfates NaBi(SO4)2·H2O and ABi(SO4)2 (A = K, Rb, Cs)

“…[46] The bands of the sulfate groups, in particular their asymmetric S-O stretching vibrations, of the four compounds 1-4 can be observed at 1112 and 1186 cm -1 for 1, 1292 and 1112 cm -1 for 2, and 1112 cm -1 for 3-4, which are, e.g., reported for Bi 2 O(SO 4 ) (IO 3 ) 2 and BiCu 2 (TeO 3 )(SO 4 )(OH) 3 with bands at 1130 and 1069 cm -1 , 1110, 1092, and 1071 cm -1 , respectively. [29,31] The S-O asymmetric bending vibrations are found at 646, 621, and 586 cm -1 for 1, 617, 582 cm -1 for 2, 642, 617, and 592 cm -1 for 3, 642, 617, and 587 cm -1 for 4, in agreement with the Na 6 M(SO 4 ) 4 •2H 2 O (M = Co, Ni) with bands at 619 and 620 cm -1 . [47] The bands at 893 and 942 cm -1 in the infrared spectrum of 2 are assigned to the S-O symmetric stretching vibration.…”

“…[47] The bands at 893 and 942 cm -1 in the infrared spectrum of 2 are assigned to the S-O symmetric stretching vibration. Such vibration is also reported in the IR spectra of Bi 2 O(SO 4 )(IO 3 ) 2 [29] at 856 and 885 cm -1 and BiCu 2 (TeO 3 ) (SO 4 )(OH) 3 [31] at 976 cm -1 . Observed absorption bands at 465 cm -1 for 1 and 2, 465, 437 cm -1 for 3, and 437 cm -1 for 4 are assigned to vibrations of the Bi-O bonds, respectively.…”

“…Observed absorption bands at 465 cm -1 for 1 and 2, 465, 437 cm -1 for 3, and 437 cm -1 for 4 are assigned to vibrations of the Bi-O bonds, respectively. These vibrations are also observed in the IR spectra of Bi 2-O(SO 4 )(IO 3 ) 2 [29] at 420, 443, 508 and 521 cm -1 , BiCu 2 (TeO 3 ) (SO 4 )(OH) 3 [31] at 468 and 461 cm -1 , and Bi 2 TeO 5 [48] at 465 cm -1 .…”

Incorporation of Sulfate or Selenate Groups into Oxotellurates(IV): I. Calcium, Cadmium, and Strontium Compounds

“…So far, only a few metal oxotellurate(IV) phases with additional X O 4 groups have been reported, mostly prepared under hydrothermal conditions. This includes the sulfates Al 2 (OH) 2 (SO 4 )(TeO 3 ), Fe 2 (TeO 3 ) 2 (SO 4 )(H 2 O) 3 , Cu 7 (OH) 6 (TeO 3 ) 2 (SO 4 ) 2 , Cu 7 TeO 4 (SO 4 ) 5 KCl, the series RE 2 M (TeO 3 ) 2 (SO 4 ) 2 ( RE = rare earth metal; M = Cu, Co, Zn),, Pu(TeO 3 )(SO 4 ), Th(TeO 3 )(SO 4 ), Ce 2 (Te 2 O 5 )(SO 4 ) 2 , M 2 (TeO 3 )(SO 4 )H 2 O ( M = Co, Mn), and BiCu 2 (TeO 3 )(SO 4 )‐(OH) 3 , and to a much lesser extend the selenates Sc 2 (TeO 3 )‐(SeO 3 )(SeO 4 ) (also comprising an oxoselenate(IV) group), Bi 2 (TeO 3 ) 2 (SeO 4 ) and the already noted mercury compounds Hg 3 (SeO 4 )(TeO 3 ) 2 and Hg 3 (SeO 4 )(Te 4 O 10 ) …”

Hybrid Inorganic‐Organic Frameworks: Synthesis and Crystal Structures of RbFe(SO4)(C2O4)0.5·H2O and CsM(SO4)(C2O4)0.5·H2O (M = Mn, Fe)

“…The infrared spectra of RbFe(SO 4 )(C 2 O 4 ) 0.5 · H 2 O, CsMn(SO 4 )(C 2 O 4 ) 0.5 · H 2 O, and CsFe(SO 4 )(C 2 O 4 ) 0.5 · H 2 O are shown in Figure . The infrared peaks observed at 620, 1090, 1174, and 1331 cm –1 [RbFe(SO 4 )(C 2 O 4 ) 0.5 · H 2 O], 619, 1078, 1168, and 1323 cm –1 [CsMn(SO 4 )(C 2 O 4 ) 0.5 · H 2 O], 625, 1095, 1174, and 1322 cm –1 [CsFe(SO 4 )(C 2 O 4 ) 0.5 · H 2 O] are assigned to the ν 4 , ν 1 , and ν 3 modes of the sulfate tetrahedra . The bands at 455, 445, 458, 508, 511, and 509 cm –1 can be attributed to symmetric SO 4 2– bending modes ν 2 , and the peak positions for the three compounds are very similar.…”