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One-Pot Hydrothermal Synthesis of TbIII13(GeO4)6O7(OH) and K2TbIVGe2O7: Preparation of a Stable Terbium(4+) Complex
Author(s) -
Kyle Fulle,
Liurukara D. Sanjeewa,
Colin D. McMillen,
Yimei Wen,
Apeksha C. Rajamanthrilage,
Jeffrey N. Anker,
George Chumanov,
Joseph W. Kolis
Publication year - 2017
Publication title -
inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 233
eISSN - 1520-510X
pISSN - 0020-1669
DOI - 10.1021/acs.inorgchem.7b00821
Subject(s) - terbium , isostructural , chemistry , hydrothermal circulation , crystallography , polyhedron , hydrothermal synthesis , oxide , solid state , oxidation state , inorganic chemistry , crystal structure , metal , chemical engineering , ion , combinatorics , mathematics , organic chemistry , engineering
Two terbium germanates have been synthesized via high-temperature and high-pressure hydrothermal synthesis with 20 M KOH as a mineralizer using Tb 4 O 7 as a starting material. Tb 13 (GeO 4 ) 6 O 7 (OH) crystallizes in trigonal space group R3̅, is built up of isolated GeO 4 units, and contains a complex arrangement of terbium oxide polyhedra. K 2 TbGe 2 O 7 is a terbium(4+) pyrogermanate that is isostructural with K 2 ZrGe 2 O 7 and displays a rare stable Tb 4+ oxidation state in the solid state.

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