Hydrothermal crystal growth of 2-D and 3-D barium rare earth germanates: BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho, Er)

Kyle Fulle; Liurukara D. Sanjeewa; Colin D. McMillen; Channa R. De Silva; Katarina Ruehl; Yimei Wen; George Chumanov; Joseph W. Kolis

doi:10.1016/j.jallcom.2019.01.185

Hydrothermal crystal growth of 2-D and 3-D barium rare earth germanates: BaREGeO₄(OH) and BaRE₁₀(GeO₄)₄O₈ (RE = Ho, Er)

Kyle Fulle
, Liurukara D. Sanjeewa
, Colin D. McMillen
, Channa R. De Silva
, Katarina Ruehl
, Yimei Wen
, George Chumanov
, Joseph W. Kolis

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Two new structural types of BaREGeO₄(OH) and BaRE₁₀(GeO₄)₄O₈ (RE = Ho³⁺,Er³⁺) single crystals were synthesized via high-temperature and high-pressure hydrothermal synthesis. The BaREGeO₄(OH) compounds were found to crystallize in the orthorhombic space group Pbca. BaHoGeO₄(OH) is used as a representative of the family with cell parameters of a = 5.7175(2) Å b = 10.1556(5) Å c = 10.6189(9) Å and V = 964.97(8) Å³. The BaREGeO₄(OH) structure contains a one-dimensional chain of rare-earth polyhedra linked through edge sharing of oxygen atoms. High density BaRE₁₀(GeO₄)₄O₈ crystals crystallize in the monoclinic space group C2/m and feature a sheet like arrangement of rare-earth oxide polyhedra with Keggin-like features. BaHo₁₀(GeO₄)₄O₈ is used as a representative of this structure type with cell parameters of a = 12.4533(8) Å b = 7.2008(5) Å c = 12.0034(8) Å β = 100.183(2)⁰ and V = 1059.43(12) Å³. Barium polyhedra and isolated GeO₄ units aid in connecting the rare earth oxide framework to extend it in three-dimensional (3-D) space. Characterization by single crystal X-ray diffraction and Raman and photoluminescence spectroscopies is reported.

Original language	English
Pages (from-to)	489-497
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	786
DOIs	https://doi.org/10.1016/j.jallcom.2019.01.185
State	Published - May 25 2019
Externally published	Yes

Funding

The authors thank the Department of Energy Basic Energy Sciences DE-SC0014271 for financial support.

Keywords

Crystal growth
Germanates
Rare earth compounds
X-ray diffraction

Access to Document

10.1016/j.jallcom.2019.01.185

Cite this

@article{9fe1dc867f154e20957ac3be0c6d9324,

title = "Hydrothermal crystal growth of 2-D and 3-D barium rare earth germanates: BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho, Er)",

abstract = "Two new structural types of BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho3+,Er3+) single crystals were synthesized via high-temperature and high-pressure hydrothermal synthesis. The BaREGeO4(OH) compounds were found to crystallize in the orthorhombic space group Pbca. BaHoGeO4(OH) is used as a representative of the family with cell parameters of a = 5.7175(2) {\AA} b = 10.1556(5) {\AA} c = 10.6189(9) {\AA} and V = 964.97(8) {\AA}3. The BaREGeO4(OH) structure contains a one-dimensional chain of rare-earth polyhedra linked through edge sharing of oxygen atoms. High density BaRE10(GeO4)4O8 crystals crystallize in the monoclinic space group C2/m and feature a sheet like arrangement of rare-earth oxide polyhedra with Keggin-like features. BaHo10(GeO4)4O8 is used as a representative of this structure type with cell parameters of a = 12.4533(8) {\AA} b = 7.2008(5) {\AA} c = 12.0034(8) {\AA} β = 100.183(2)⁰ and V = 1059.43(12) {\AA}3. Barium polyhedra and isolated GeO4 units aid in connecting the rare earth oxide framework to extend it in three-dimensional (3-D) space. Characterization by single crystal X-ray diffraction and Raman and photoluminescence spectroscopies is reported.",

keywords = "Crystal growth, Germanates, Rare earth compounds, X-ray diffraction",

author = "Kyle Fulle and Sanjeewa, \{Liurukara D.\} and McMillen, \{Colin D.\} and \{De Silva\}, \{Channa R.\} and Katarina Ruehl and Yimei Wen and George Chumanov and Kolis, \{Joseph W.\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = may,

day = "25",

doi = "10.1016/j.jallcom.2019.01.185",

language = "English",

volume = "786",

pages = "489--497",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier",

}

TY - JOUR

T1 - Hydrothermal crystal growth of 2-D and 3-D barium rare earth germanates

T2 - BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho, Er)

AU - Fulle, Kyle

AU - Sanjeewa, Liurukara D.

AU - McMillen, Colin D.

AU - De Silva, Channa R.

AU - Ruehl, Katarina

AU - Wen, Yimei

AU - Chumanov, George

AU - Kolis, Joseph W.

PY - 2019/5/25

Y1 - 2019/5/25

N2 - Two new structural types of BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho3+,Er3+) single crystals were synthesized via high-temperature and high-pressure hydrothermal synthesis. The BaREGeO4(OH) compounds were found to crystallize in the orthorhombic space group Pbca. BaHoGeO4(OH) is used as a representative of the family with cell parameters of a = 5.7175(2) Å b = 10.1556(5) Å c = 10.6189(9) Å and V = 964.97(8) Å3. The BaREGeO4(OH) structure contains a one-dimensional chain of rare-earth polyhedra linked through edge sharing of oxygen atoms. High density BaRE10(GeO4)4O8 crystals crystallize in the monoclinic space group C2/m and feature a sheet like arrangement of rare-earth oxide polyhedra with Keggin-like features. BaHo10(GeO4)4O8 is used as a representative of this structure type with cell parameters of a = 12.4533(8) Å b = 7.2008(5) Å c = 12.0034(8) Å β = 100.183(2)⁰ and V = 1059.43(12) Å3. Barium polyhedra and isolated GeO4 units aid in connecting the rare earth oxide framework to extend it in three-dimensional (3-D) space. Characterization by single crystal X-ray diffraction and Raman and photoluminescence spectroscopies is reported.

AB - Two new structural types of BaREGeO4(OH) and BaRE10(GeO4)4O8 (RE = Ho3+,Er3+) single crystals were synthesized via high-temperature and high-pressure hydrothermal synthesis. The BaREGeO4(OH) compounds were found to crystallize in the orthorhombic space group Pbca. BaHoGeO4(OH) is used as a representative of the family with cell parameters of a = 5.7175(2) Å b = 10.1556(5) Å c = 10.6189(9) Å and V = 964.97(8) Å3. The BaREGeO4(OH) structure contains a one-dimensional chain of rare-earth polyhedra linked through edge sharing of oxygen atoms. High density BaRE10(GeO4)4O8 crystals crystallize in the monoclinic space group C2/m and feature a sheet like arrangement of rare-earth oxide polyhedra with Keggin-like features. BaHo10(GeO4)4O8 is used as a representative of this structure type with cell parameters of a = 12.4533(8) Å b = 7.2008(5) Å c = 12.0034(8) Å β = 100.183(2)⁰ and V = 1059.43(12) Å3. Barium polyhedra and isolated GeO4 units aid in connecting the rare earth oxide framework to extend it in three-dimensional (3-D) space. Characterization by single crystal X-ray diffraction and Raman and photoluminescence spectroscopies is reported.

KW - Crystal growth

KW - Germanates

KW - Rare earth compounds

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/85061011862

U2 - 10.1016/j.jallcom.2019.01.185

DO - 10.1016/j.jallcom.2019.01.185

M3 - Article

AN - SCOPUS:85061011862

SN - 0925-8388

VL - 786

SP - 489

EP - 497

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -