Новосибирский аспирант случайно совершил прорыв в рентгенографии
http://www.sbras.info/articles/science/ ... ata-bariya
никто не подскажет формулу соединения, или хотя бы ссылку на статью.
фторидобораты бария
фторидобораты бария
If you are not part of the solution, you are part of the precipitate.
Re: фторидобораты бария
В скайфайндере нет Ращенко, нет статей Сереткина после 2013, нет статей Татьяны Беккер после 2014.
По запросу barium fluoridoborates все еще загадочнее:
1. Strontium tetrafluoridoborate and barium tetrafluoridoborate. [Erratum to document cited in CA149:212097]
By Goreshnik, Evgeny; Vakulka, Andrii; Zemva, Boris; Bunic, Tina
From Acta Crystallographica, Section C: Crystal Structure Communications (2010), 66(3), e9. | Language: English, Database: CAPLUS
In the paper by Bunic, Tavcar, Goreshnik & Zemva [Acta Cryst. (2007), C63, i75-i76], the structure reported as Sr(BF4)2 is actually that of Cd(BF4)2. The correct structure of Sr(BF4)2 is now reported.
2. Strontium tetrafluoridoborate and barium tetrafluoridoborate
By Bunic, Tina; Tavcar, Gasper; Goreshnik, Evgeny; Zemva, Boris
From Acta Crystallographica, Section C: Crystal Structure Communications (2007), 63(9), i75-i76. | Language: English, Database: CAPLUS
In Sr(BF4)2, which is isomorphous with the previously published Ca(BF4)2, the metal atom possesses a coordination no. of 8 with a square-antiprismatic environment. Each tetrafluoridoborate anion is bonded to four metal centers. In the barium deriv., the metal center, with symmetry 2/m, is surrounded by 14 F atoms. The B atom and two of the three independent F atoms occupy special positions with symmetry m. Each anion is connected to five Ba atoms. This structure differs significantly from an earlier published structure of Ba(BF4)2 [published as Ba2(BF4)4; Lin, Cheng, Chen, and Huang (1998) Jiegon Huaxue, 17, 245]. The radial distribution functions for the present Ba(BF4)2 and earlier Ba2(BF4)4 structures differ significantly.
Barium Fluoroborates 79 статей
По запросу barium fluoridoborates все еще загадочнее:
1. Strontium tetrafluoridoborate and barium tetrafluoridoborate. [Erratum to document cited in CA149:212097]
By Goreshnik, Evgeny; Vakulka, Andrii; Zemva, Boris; Bunic, Tina
From Acta Crystallographica, Section C: Crystal Structure Communications (2010), 66(3), e9. | Language: English, Database: CAPLUS
In the paper by Bunic, Tavcar, Goreshnik & Zemva [Acta Cryst. (2007), C63, i75-i76], the structure reported as Sr(BF4)2 is actually that of Cd(BF4)2. The correct structure of Sr(BF4)2 is now reported.
2. Strontium tetrafluoridoborate and barium tetrafluoridoborate
By Bunic, Tina; Tavcar, Gasper; Goreshnik, Evgeny; Zemva, Boris
From Acta Crystallographica, Section C: Crystal Structure Communications (2007), 63(9), i75-i76. | Language: English, Database: CAPLUS
In Sr(BF4)2, which is isomorphous with the previously published Ca(BF4)2, the metal atom possesses a coordination no. of 8 with a square-antiprismatic environment. Each tetrafluoridoborate anion is bonded to four metal centers. In the barium deriv., the metal center, with symmetry 2/m, is surrounded by 14 F atoms. The B atom and two of the three independent F atoms occupy special positions with symmetry m. Each anion is connected to five Ba atoms. This structure differs significantly from an earlier published structure of Ba(BF4)2 [published as Ba2(BF4)4; Lin, Cheng, Chen, and Huang (1998) Jiegon Huaxue, 17, 245]. The radial distribution functions for the present Ba(BF4)2 and earlier Ba2(BF4)4 structures differ significantly.
Barium Fluoroborates 79 статей
Re: фторидобораты бария
Хотел порадоваться, успехам наших аспирантов, но подробностей к сожалению тоже не могу найти.
If you are not part of the solution, you are part of the precipitate.
Re: фторидобораты бария
Похоже на кристаллический дозиметр.
"Я не видел людей страшней, чем толпа цвета хаки"
Re: фторидобораты бария
Это центры окраскиantabu писал(а):Похоже на кристаллический дозиметр.
https://ru.wikipedia.org/wiki/%D0%A6%D0 ... 0%BA%D0%B8
я такие получал в Щелочно-галоидных кристаллах, когда работал на РХМ-гамма-20. У нас один предприниматель в начале 90-х покупал стеклянные фужеры облучал их гамма-излучением до легкого золотистого цвета и продавал.
Интересно, что особенного именно во фторидоборатах бария.
If you are not part of the solution, you are part of the precipitate.
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