Synthesis, structure characterization and optical properties of a new tripotassium cadmium pentaborate, K{sub 3}CdB{sub 5}O{sub 10}

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

OSTI ID:21580168

Hongwei, Yu ^[1]; Hongping, Wu; Jian, Han ^[1]; Xiaoyu, Dong ^[1]; Zhongxiang, Zhou ^[1]

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1. Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011 (China)

A new ternary borate oxide, K{sub 3}CdB{sub 5}O{sub 10}, has been synthesized by solid-state reaction at 580 deg. C. The compound crystallizes in the monoclinic space group P2{sub 1}/n with a=7.6707 (7) A, b=19.1765 (17) A, c=7.8784 (6) A, {beta}=115.6083 (49){sup o}, and Z=4. The crystal structure consists of a two-dimensional infinite [CdB{sub 5}O{sub 10}] layer, which forms by connecting isolated double ring [B{sub 5}O{sub 10}] groups and CdO{sub 4} tetrahedra. K atoms filling in the interlayer and intralayer link the layers together and balance charge. The IR spectrum has been studied and confirmed the presence of both BO{sub 3} and BO{sub 4} groups, and the UV-vis-IR diffuse reflectance spectrum exhibits a band gap of about 3.4 eV. The DSC analysis proves that K{sub 3}CdB{sub 5}O{sub 10} is a congruent melting compound. - Graphical abstract: A new phase, K{sub 3}CdB{sub 5}O{sub 10}, has been discovered in the ternary K{sub 2}O-CdO-B{sub 2}O{sub 3} system. The crystal structure consists of a two-dimensional infinite [CdB{sub 5}O{sub 10}] layer. Highlights: > The compound, K{sub 3}CdB{sub 5}O{sub 10}, was synthesized and characterized for the first time. {yields}K{sub 3}CdB{sub 5}O{sub 10} is a congruent melting compound, which means the large single crystals could be grown from the melt using the Czochralski pulling method. {yields}The crystal structure consists of a two-dimensional infinite [CdB{sub 5}O{sub 10}].

• OSTI ID: 21580168
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 7; Other Information: DOI: 10.1016/j.jssc.2011.05.007; PII: S0022-4596(11)00228-3; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BORATES
BORON OXIDES
CADMIUM OXIDES
CALORIMETRY
INFRARED SPECTRA
LAYERS
MONOCLINIC LATTICES
MONOCRYSTALS
OPTICAL PROPERTIES
POTASSIUM OXIDES
SOLIDS
SPACE GROUPS
SYNTHESIS
TWO-DIMENSIONAL CALCULATIONS
ALKALI METAL COMPOUNDS
BORON COMPOUNDS
CADMIUM COMPOUNDS
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
SPECTRA
SYMMETRY GROUPS