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Structure of Non-stoichiometric Sr6Gd0.61Sc1.39（BO3）6 Crystal

HUZu-Shu, LINZhou-Bin, CHENJiu-Tong, WANGGuo-Fon

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Abstract

The crystal of the title compound Sr6Gd0.61Sc1.39(BO3)6 (Mr = 1037.00) was grown by Czochralski method. It crystallizes in trigonal, space group with a = 12.415(2), c = 9.274(2) (A。), Z = 3, V = 1238.0(4) (A。)3, Dc = 4.173 g/cm3, λ(MoKα) = 0.71073 (A。), μ = 22.278 mm-1, F(000) = 1411, S = 1.213, the final R = 0.0577 and wR = 0.1414 for 401 observed reflections with I>2σ(I). In the structure Gd(1)O6 Gd(1) = Gd0.46 + Sc0.54) and Gd(2)O6 (Gd(2)= Gd0.15 + Sc0.85) are alternately stacked between the planar triangular BO3 groups to form chains extending along the trigonal axis. These chains are connected through the 9-coordinate Sr atoms.

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What this paper is about

The crystal of the title compound Sr6Gd0.61Sc1.39(BO3)6 (Mr = 1037.00) was grown by Czochralski method. It crystallizes in trigonal, space group with a = 12.415(2), c = 9.274(2) (A。), Z = 3, V = 1238.0(4) (A。)3, Dc = 4.173 g/cm3, λ(MoKα) = 0.71073 (A。), μ = 22.278 mm-1, F(000) = 1411, S = 1.213, the final R = 0.0577 and wR = 0.1414 for 401 observed reflections with I>2σ(I). In the structure Gd(1)O6 Gd(1) = Gd0.46 + Sc0.54) and Gd(2)O6 (Gd(2)= Gd0.15 + Sc0.85) are alternately stacked between the planar triangular BO3 groups to form chains extending along the trigonal axis. These chains are connected through the 9-coordinate Sr atoms.

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Available abstract

The crystal of the title compound Sr6Gd0.61Sc1.39(BO3)6 (Mr = 1037.00) was grown by Czochralski method. It crystallizes in trigonal, space group with a = 12.415(2), c = 9.274(2) (A。), Z = 3, V = 1238.0(4) (A。)3, Dc = 4.173 g/cm3, λ(MoKα) = 0.71073 (A。), μ = 22.278 mm-1, F(000) = 1411, S = 1.213, the final R = 0.0577 and wR = 0.1414 for 401 observed reflections with I>2σ(I). In the structure Gd(1)O6 Gd(1) = Gd0.46 + Sc0.54) and Gd(2)O6 (Gd(2)= Gd0.15 + Sc0.85) are alternately stacked between the planar triangular BO3 groups to form chains extending along the trigonal axis. These chains are connected through the 9-coordinate Sr atoms.

Key concepts: Crystallography, Stoichiometry, Trigonal crystal system, Crystal structure, Planar, Crystal (programming language), Chemistry, Group (periodic table)

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