New double holmium borates: Rb3HoB6O12 and Rb3Ho2B3O9

Субанаков, А. К.; Kovtunets, Evgeniy V.; Базаров, Б. Г.; Dorzhieva, S. G.; Bazarova, Jibzema G.

doi:10.1016/j.solidstatesciences.2020.106231

Cited by 10 publications

(3 citation statements)

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“…A fascinating subgroup of the rare-earth borates is the quaternary A 2 O-RE 2 O 3 -B 2 O 3 (A = alkali metals, RE = rare earth) system, which attracts intensive research attention in recent years particularly due to its structural richness. To date, a vast array of novel alkali metal rare-earth borates with various structural motifs have been reported, such as Li 3 RE 2 (BO 3 ) 3 [19], Li 3 RE(BO 3 ) 2 [20,21], Na 3 RE(BO 3 ) 2 [22][23][24], Na 3 Y 3 (-BO 3 ) 4 [25], K 3 RE(BO 3 ) 2 [26],K 3 REB 6 O 12 [12,27], K 3 Y 3 (BO 3 ) 4 [28], Rb 3 REB 6 O 12 [29][30][31] and Rb 3 La 3 (-BO 3 ) 4 [32]. Some of these compounds have stoichiometric similarity, but crystallize in significantly different structures, where the size of the alkali and rare-earth cations is assumed to play an important role.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

2020

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Section: Introductionmentioning

confidence: 99%

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

2020

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“…Borates are considered to be attractive functional materials for non-linear optic and luminescence due to their wide variety of crystal structures, low synthesis temperature, and environmental benignity [1][2][3][4][5][6][7][8][9][10][11][12][13]. Today commercially used nonlinear optical crystals of borates with superior optical properties are β-BaB2O4 [14] and LiB3O5 [15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystal structure, and thermal stability of double borate Na₃ErB₂O₆

et al. 2021

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Double borate Na3ErB2O6 was synthesized by the solid-state reaction. The crystal structure of Na3ErB2O6 was refined by the Rietveld method: P21/c, a = 6.49775(14) Å, b = 8.50424(17) Å, c = 12.0067(3) Å, β = 118.4797(9)°, Z = 4. The crystal structure of Na3ErB2O6 consists of –[ErO6]∞-chains along the "b" axis, which are linked by BO3 triangles in a three-dimensional framework. Sodium atoms occupy empty positions inside the channels. The thermal behavior of Na3ErB2O6 was studied in detail in the range of 25–1150 °C range by DSC and TG methods. Na3ErB2O6 congruently melts at 1116 °C. Based on the results of DSC measurements, three reversible phase transitions were found for Na3ErB2O6.

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“…Ранее в результате изучения фазовых равновесий в системах Rb 2 O -RE 2 O 3 -B 2 O 3 (RE = Nd, Eu, Ho) обнаружено существование двух семейств изоструктурных двойных боратов составов Rb 3 REB 6 O 12 [3,4] и Rb 3 RE 2 B 3 O 9 [5]. Настоящая работа является продолжением проводимых нами систематических исследований, направленных на выявление, получение и всестороннюю ха-Ковтунец Евгений Викторович, e-mail: kovtunets@binm.ru рактеризацию двойных боратов, в состав которых входят катион щелочного металла и редкоземельный элемент.…”

Section: Introductionunclassified

Синтез, структура и люминесцентные свойства нового двойного бората K3Eu3B4O12

Kovtunets

Субанаков

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2020

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Установлено образование нового двойного бората K3Eu3B4O12. По данным уточнения кристаллической структуры методом Ритвельда соединение, кристаллизуется в моноклинной сингонии с параметрами элементарной ячейки a = 10.6727(7) Å, b = 8.9086(6) Å, c = 13.9684(9) Å, b = 110.388(2) ° (пр. гр. P2/c). Структура K3Eu3B4O12 представляет собой ажурные слои [Eu8(BO3)8]∞, расположенные почти параллельно плоскости ab, образованные пятиугольными бипирамидами EuO7, октаэдрами EuO6 и присоединенными к ним через общие вершины треугольниками BO3. Связьмежду соседними слоями осуществляется посредством пятиугольных бипирамид EuO7, треугольников BO3 и катионов калия. В спектре люминесценции наблюдается доминирование заметной полосы на длине волны 611 нм, обусловленной переходом 5D0→7F2 иона Eu3+. ЛИТЕРАТУРА 1. Xie Z., Mutailipu M., He G., Han G., Wang Y., Yang Z., Zhang M., Pan S. A series of rare-earth boratesK7MRE2B15O30 (M = Zn, Cd, Pb; RE = Sc, Y, Gd, Lu) with large second harmonic generation responses. Chemistry of Materials. 2018;30 (7): 2414–2423. DOI: https://doi.org/10.1021/acs.chemmater.8b004912. Mutailipu M., Xie Z., Su X., Zhang M., Wang Y., Yang Z., Janjua M. R. S. A., Pan S. Chemical cosubstitution-oriented design of rare-earth borates as potential ultraviolet nonlinear optical materials. Journal of theAmerican Chemical Society. 2017;139(50): 18397–18405. DOI: https://doi.org/10.1021/jacs.7b112633. Atuchin V. V., Subanakov A. K., Aleksandrovsky A. S., Bazarov B. G., Bazarova J. G., DorzhievaS. G., Gavrilova T. A., Krylov A. S., Molokeev M. S., Oreshonkov A. S., Pugachev A. M., Tushinova Yu. L.,Yelisseyev A. P. Exploration of structural, thermal, vibrational and spectroscopic properties of new noncentrosymmetric double borate Rb3NdB6O12. Advanced Powder Technology. 2017;28(5): 1309–1315. DOI:https://doi.org/10.1016/j.apt.2017.02.0194. Atuchin V. V., Subanakov A. K., Aleksandrovsky A. S., Bazarov B. G., Bazarova J. G., GavrilovaT. A., Krylov A. S., Molokeev M. S., Oreshonkov A. S., Stefanovich S. Yu. Structural and spectroscopic propertiesof new noncentrosymmetric selfactivated borate Rb3EuB6O12 with B5O10 units. Materials & Design.2018;140: 488–494. DOI: https://doi.org/10.1016/j.matdes.2017.12.0045. Subanakov A. K., Kovtunets E. V., Bazarov B. G., Dorzhieva S. G., Bazarova J. G. New double holmiumborates: Rb3HoB6O12 and Rb3Ho2B3O9. Solid State Sciences. 2020;105: 106231. DOI: https://doi.org/10.1016/j.solidstatesciences.2020.1062316. Zhao J., Zhao D., Liu B.-Z., Xue Y.-L., Fan Y.-P., Zhang S.-R., Zong Q. K3Gd3B4O12: a new member ofrare-earth orthoborate for luminescent host matrix. Journal of Materials Science: Materials in Electronics.2018;29(24): 20808–20819. DOI: https://doi.org/10.1007/s10854-018-0223-67. Bruker AXS TOPAS V4: General profi le and structure analysis software for powder diffraction data. User’sManual. Bruker AXS, Karlsruhe, Germany, 2008. 68 p. 8. Järvinen M. Application of symmetrized harmonics expansion to correction of the preferred orientationeffect. Journal of Applied Crystallography. 1993;26(4): 525–531. DOI: https://doi.org/10.1107/S00218898930012199. Tanner P. A. Some misconceptions concerning the electronic spectra of tri-positive europium andcerium. Chemical Society Reviews. 2013;12: 5090 DOI: https://doi.org/10.1039/c3cs60033e10. Zhao D., Ma F.-X., Wu Z.-Q., Zhang L., Wei W., Yang J., Zhang R.-H., Chen P.-F., Wu S.-X. Synthesis,crystal structure and characterizations of a new red phosphor K3EuB6O12. Materials Chemistry and Physics.2016;182: 231–236. DOI: https://doi.org/10.1016/j.matchemphys.2016.07.027

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New double holmium borates: Rb3HoB6O12 and Rb3Ho2B3O9

Cited by 10 publications

References 28 publications

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

Synthesis, crystal structure, and thermal stability of double borate Na₃ErB₂O₆

Синтез, структура и люминесцентные свойства нового двойного бората K3Eu3B4O12

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New double holmium borates: Rb3HoB6O12 and Rb3Ho2B3O9

Cited by 10 publications

References 28 publications

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

Synthesis and crystal structures of novel alkali rare-earth orthoborates K3RE3(BO3)4 (RE = Pr, Nd, Sm–Lu)

Synthesis, crystal structure, and thermal stability of double borate Na3ErB2O6

Синтез, структура и люминесцентные свойства нового двойного бората K3Eu3B4O12

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Synthesis, crystal structure, and thermal stability of double borate Na₃ErB₂O₆