The trigonal polymorph of strontium tetraborate, beta-SrB4O7

Описание

Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1107/S1600536810019069

Ключевые слова: Tetra

Аннотация: The asymmetric unit of the title compound, beta-SrB4O7, contains five Sr atoms (three located on a threefold rotation axis), twelve B and 21 O atoms. The structure is made up from BO3 triangles and BO4 tetrahedra in a 1:1 ratio. Pairs of BO3 triangles are linked to BO4 tetrahedra via common corners, forming chains. These chains areПоказать полностьюfurther linked to adjacent chains through corner-sharing, leading to a three-dimensional framework with channels running parallel to [001]. The Sr2+ ions reside in the channels and exhibit strongly distorted polyhedra The density of the beta-polymorph is considerably lower than that of beta-SrB4O7, which is constructed solely from BO4 tetrahedra.

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Издание

Журнал: ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE

Выпуск журнала: Vol. 66, Part6

Номера страниц: 48-132

ISSN журнала: 16005368

Место издания: MALDEN

Издатель: WILEY-BLACKWELL

Персоны

  • Vasiliev Alexander D. (Inst Phys SB RAS, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Cherepakhin Alexander V.
  • Zaitsev Alexander I.