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On the Crystal Structure of the Germanium-Based Cationic Clathrates [Ge38.3Sb7.7]I-7.44, [Ge38.1P7.9]I-8, and [Ge30.5Sn7.7P7.75]I-7.88статья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Kirsanova M.A., Reshetova L.N., Olenev A.V., Shevelkov A.V.
- Журнал: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
- Том: 38
- Номер: 3
- Год издания: 2012
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 192
- Последняя страница: 199
- DOI: 10.1134/S1070328412030062
- Аннотация: Compounds [Ge38.3Sb7.7]I-7.44, [Ge38.1P7.9]I-8, and [Ge30.5Sn7.7P7.75]I-7.88 with the clathrate type-I Lstructure were synthesized. They crystallize in the cubic space group Pm (3) over barn with the unit cell parameter a = 10.8592(9), 10.4983(12), and 10.7210(10) angstrom (Z = 1), respectively. Their crystal structure represents the germanium(tin)-pnictogen framework, capturing the guest iodine anions in its cavities. All compounds have no vacancies in the host substructure; however, two of them show vacancies in the guest positions. The atomic distribution over the framework sites is of the most interest as it follows trends associated with the relative electronegativities of the atoms composing the framework. The results of the band structure calculations and application of the Zintl counting scheme are also discussed in relation to potential thermoelectric properties.
- Добавил в систему: Шевельков Андрей Владимирович