High-Pressure/High-Temperature Synthesis of LnB3.6O7 (Ln=La, Pr) - Two Unique Lanthanoid Borates in a Defective α-SrB4O7-Structure-Type

被引：1

作者：

Teichtmeister, Tobias A. ^{[1
]}

Widmann, Ingo ^{[1
]}

Bayarjargal, Lkhamsuren ^{[2
]}

Tribus, Martina ^{[3
]}

Heymann, Gunter ^{[1
]}

Wurst, Klaus ^{[1
]}

Huppertz, Hubert ^{[1
]}

机构：

[1] Univ Innsbruck, Dept Gen Inorgan & Theoret Chem, Innrain 80-82, A-6020 Innsbruck, Austria

[2] Goethe Univ Frankfurt Main, Inst Geowissensch, Altenhoferallee 1, D-60438 Frankfurt, Germany

[3] Univ Innsbruck, Dept Mineral & Petrog, Innrain 52, A-6020 Innsbruck, Austria

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2024年 / 27卷 / 04期

关键词：

borates; high-pressure chemistry; lanthanum; praseodymium; solid-state chemistry; CRYSTAL-STRUCTURE; STRUCTURE VALIDATION; STRONTIUM; DIBORATE; SPECTROSCOPY; BEHAVIOR; SILVER; LA;

D O I：

10.1002/ejic.202300555

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The orthorhombic phases LaB3.6O7 and PrB3.6O7 were obtained by high-pressure/high-temperature syntheses at 11 GPa and temperatures of 1130 degree celsius (LaB3.6O7) as well as 850 degree celsius (PrB3.6O7) using a modified Walker-type multianvil apparatus. The title compounds crystallize in the space group Pmn2(1 )(no. 31) exhibiting a defective alpha-SrB4O7 structure variant with the unit cell parameters a=10.4551(3) angstrom, b=4.4562(1) angstrom, c=4.2973(1) angstrom for LaB3.6O7 and a=10.4305(3) angstrom, b=4.4257(1) angstrom, c=4.2815(1) angstrom for PrB3.6O7. Both compounds were characterized by powder/single-crystal X-ray diffraction, vibrational spectroscopy, second harmonic generation, and electron dispersive X-ray spectroscopy measurements.

引用

页数：10

共 44 条

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