Preparation and Superconducting Behavior of Triammonium Fulleride Full article
| Journal |
Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891 |
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| Output data | Year: 2021, Volume: 182, Pages: 51-56 Pages count : 6 DOI: 10.1016/j.carbon.2021.05.043 | ||||||||
| Tags | Fullerides, superconductors, ion-exchange, ammonium, synchrotron powder diffraction. | ||||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Government of the Russian Federation | АААА-А21-121011590086-0 |
| 2 | Government of the Russian Federation | 28 (АААА-А20-120113090069-0) |
Abstract:
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.
Cite:
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 AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
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 AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Feb 17, 2021 |
| Accepted: | May 20, 2021 |
| Published online: | May 30, 2021 |
| Published print: | Sep 1, 2021 |
Identifiers:
| Web of science: | WOS:000683805200006 |
| Scopus: | 2-s2.0-85108228633 |
| Elibrary: | 46869520 |
| Chemical Abstracts: | 2021:1263015 |
| OpenAlex: | W3169780936 |
| publication_identifier.sciact_skif_identifier_type: | 478 |