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Preparation and Superconducting Behavior of Triammonium Fulleride Научная публикация

Журнал Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891
Вых. Данные Год: 2021, Том: 182, Страницы: 51-56 Страниц : 6 DOI: 10.1016/j.carbon.2021.05.043
Ключевые слова Fullerides, superconductors, ion-exchange, ammonium, synchrotron powder diffraction.
Авторы Kulbachinskii Vladimir A. 1,2,3 , Zubavichus Yan V. 4 , Svetogorov Roman D. 3 , Ezhikov Nikolai S. 1 , Lunin Roman A. 1 , Bulychev Boris M. 1
Организации
1 Lomonosov Moscow State University, Moscow, Russia
2 Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
3 NRC “Kurchatov Institute”, Moscow, Russia
4 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Koltsovo, Russia

Информация о финансировании (2)

1 Правительство Российской Федерации АААА-А21-121011590086-0
2 Правительство Российской Федерации 28 (АААА-А20-120113090069-0)

Реферат: The synthesis of triammonium fulleride (NH4)3C60 by ion exchange of either K3C60 or Rb3C60 with NH4Cl in absolute toluene is reported. According to the Rietveld refinement of a synchrotron radiation-based X-ray diffraction pattern, (NH4)3C60 belongs to the same structure type as both K3C60 and Rb3C60 featuring an fcc lattice with intercalated cations occupying tetrahedral and octahedral cavities of the close-packing formed by fullerene С60 spheres. The ion exchange is incomplete and the final formulation of the product is [(NH4)2.88K0.12]3C60. In contrast to earlier suggestions and tabulated ionic radii values, the (NH4)3C60 crystal structure is characterized by a lattice parameter slightly smaller than that of K3C60. A similar reaction between K4C60 and NH4Cl proceeds differently involving the redox step and affords [(NH4)0.48K2.52]3C60 again emphasizing the fact that ammonium and potassium in the fulleride phase tend to form substitutional solid solutions. According to low-frequency inductive method, all (NH4)3C60-related phases studied are superconducting with similar temperatures of the superconducting transition around Tc=16.4 K.
Библиографическая ссылка: Kulbachinskii V.A. , Zubavichus Y.V. , Svetogorov R.D. , Ezhikov N.S. , Lunin R.A. , Bulychev B.M.
Preparation and Superconducting Behavior of Triammonium Fulleride
Carbon. 2021. V.182. P.51-56. DOI: 10.1016/j.carbon.2021.05.043 WOS Scopus РИНЦ CAPlus OpenAlex СКИФ ID
Даты:
Поступила в редакцию: 17 февр. 2021 г.
Принята к публикации: 20 мая 2021 г.
Опубликована online: 30 мая 2021 г.
Опубликована в печати: 1 сент. 2021 г.
Идентификаторы БД:
Web of science: WOS:000683805200006
Scopus: 2-s2.0-85108228633
РИНЦ: 46869520
Chemical Abstracts: 2021:1263015
OpenAlex: W3169780936
СКИФ ID: 478
Цитирование в БД:
БД Цитирований
Scopus 1
Web of science 1
РИНЦ 1
OpenAlex 1
Альметрики: