Structure of a new CaII1/3SbV1/6BiIII1/2PO4 phosphate

Aatiq, Abderrahim; Tigha, My Rachid

doi:10.1017/s0885715613000717

Cited by 2 publications

(3 citation statements)

References 31 publications

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“…Therefore, for the two positions, Ca and Bi atoms were fixed at the same position with the same atomic coordinates, and the equivalent isotropic displacement parameters were constrained the same as well. A similar situation of Bi 3+ /Ca 2+ or Bi 3+ /Sr 2+ occupying the same position has been observed in many compounds such as Bi 2 CaV 2 O 9 , Ca 3 Bi(PO 4 ) 3 , , Ca 1/3 Sb 1/6 Bi 1/2 PO 4 , Sr 3 Bi(PO 4 ) 3 , and Ca 1.25 Sr 0.75 Bi 3 Nb 2 O 11 Cl . The reason lies on a similar coordination geometry of Bi, Sr, and Ca atoms and their similar Bi–O, Ca–O, and Sr–O bond lengths as well.…”

Section: Methodssupporting

confidence: 68%

“…However, the main challenge comes from the fact that most of the known bismuth phosphates tend to crystallize in centrosymmetric space groups, − which limits their application as nonlinear optical (NLO) materials with the capability for frequency conversion. Mostly, the reason behind this is that the dipole moments produced by the BiO n polyhedra have been canceled by each other due to the antiparallel arrangement of Bi ions.…”

Section: Introductionmentioning

confidence: 99%

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Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties

Chen,

Zhang,

Liu

et al. 2023

Inorg. Chem.

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Developing strategies to rational design noncentrosymmetric structure still attract much interest for their applications in nonlinear optical and piezoelectric materials. Two noncentrosymmetric (NCS) alkaline earth metal bismuth phosphates have been successfully achieved via partial replacement of Bi3+ with Ca2+ or Sr2+ ions. BiCa(H0.5PO4)2 (designated as CaBiPO) and BiSr(H0.5PO4)2 (designated as SrBiPO), together with their solid solution Bi(Sr1–x Ca x )(H0.5PO4)2 (0 < x ≤ 0.5), crystallize in the NCS space group C2. Both CaBiPO and SrBiPO exhibit ultraviolet nonlinear optical (NLO) properties, and their second-harmonic generation effects belong to type-II phase matching. Meanwhile, they could also act as photoluminescence hosts in which the Eu3+-doping samples SrBiPO:xEu3+ (x = 0.02–0.2) emit orange light. The effect of different radius ions on the derivative structures and the structure–NLO property relationship has also been discussed in detail.

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Section: Methodssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties

Chen,

Zhang,

Liu

et al. 2023

Inorg. Chem.

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“…Recently [25]. It crystallizes with the high temperature BiPO 4 monoclinic structure variety (P2 1 /m space group).…”

Section: Introductionmentioning

confidence: 99%

Structure, infrared and Raman spectroscopic studies of newly synthetic AII(SbV0.50FeIII0.50)(PO4)2 (ABa, Sr, Pb) phosphates with yavapaiite structure

Aatiq¹,

Tigha²,

Fakhreddine³

et al. 2016

Solid State Sciences

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a b s t r a c tThe synthesis and structural study of three new A II (Sb V 0.5 Fe III 0.5 )(PO 4 ) 2 (A]Ba, Sr, Pb) phosphates belonging to the AeSbeFeePeO system were reported here for the first time. Structures of [Ba], [Sr] and [Pb] compounds, obtained by solid state reaction in air atmosphere, were determined at room temperature from X-ray powder diffraction using the Rietveld method. Ba II (Sb V 0.5 Fe III 0.5 )(PO 4 ) 2 features the yavapaiite-type structure, with space group C2/m, Z ¼ 2 and a ¼ 8.1568 (4) Å; b ¼ 5.1996(3) Å c ¼ 7.8290(4) Å; b ¼ 94.53(1) . A II (Sb V 0.5 Fe III 0.5 )(PO 4 ) 2 (A]Sr, Pb) compounds have a distorted yavapaiite structure with space group C2/c, Z ¼ 4 and a ¼ 16.5215(2) Å; b ¼ 5.1891(1) Å c ¼ 8.0489(1) Å; b ¼ 115.70(1) for [Sr]; a ¼ 16.6925(2) Å; b ¼ 5.1832(1) Å c ¼ 8.1215(1) Å; b ¼ 115.03(1) for [Pb]. Raman and Infrared spectroscopic study was used to obtain further structural information about the nature of bonding in selected compositions.

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Structure of a new Ca^II_1/3Sb^V_1/6Bi^III_1/2PO₄ phosphate

Cited by 2 publications

References 31 publications

Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties

Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties

Structure, infrared and Raman spectroscopic studies of newly synthetic AII(SbV0.50FeIII0.50)(PO4)2 (ABa, Sr, Pb) phosphates with yavapaiite structure

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