Crystal structures and comparisons of huntite aluminum borates REAl3(BO3)4 (RE = Tb, Dy and Ho)

被引：10
作者：
Chong, Saehwa [1 ]
Riley, Brian J. [1 ]
Nelson, Zayne J. [1 ]
Perry, Samuel N. [2 ]
机构：
[1] Pacific Northwest Natl Lab, Richland, WA 99354 USA
[2] Univ Notre Dame, Dept Civil & Environm Engn & Earth Sci, Notre Dame, IN 46556 USA
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2020年 / 76卷
关键词：
huntite borate; lanthanide aluminum borate; single-crystal XRD; SPECTROSCOPIC PROPERTIES; LUMINESCENCE PROPERTIES; DOPED YAL3(BO3)(4); LASER PROPERTIES; RAL3(BO3)(4) R; EPR-SPECTRA; GROWTH; YB; ER; NDAL3(BO3)4;
D O I：
10.1107/S2056989020001802
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Three huntite-type aluminoborates of stoichiometry REAl3(BO3)(4) (RE = Tb, Dy and Ho), namely, terbium/dysprosium/holmium trialuminium tetrakis(borate), were synthesized by slow cooling within a K2Mo3O10 flux with spontaneous crystallization. The crystal structures were determined using single-crystal X-ray diffraction (SC-XRD) data. The synthesized borates are isostructural to the huntite [CaMg3(CO3)(4)] structure and crystallized within the trigonal R32 space group. The structural parameters were compared to literature data of other huntite REAl3(BO3)(4) crystals within the R32 space group. All three borates fit well into the trends calculated from the literature data. The unit-cell parameters and volumes increase linearly with larger RE cations whereas the densities decrease. All of the crystals studied were refined as inversion twins.
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页码：339 / +
页数：11
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