Crystal Structure and Stoichiometric Composition of Potassium-Intercalated Tetracene.
Inorg Chem
; 59(17): 12545-12551, 2020 Sep 08.
Article
em En
| MEDLINE
| ID: mdl-32805995
ABSTRACT
The products of the solid-state reactions between potassium metal and tetracene (KTetracene, 11, 1.51, and 21) are fully structurally characterized. Synchrotron X-ray powder diffraction shows that only K2Tetracene forms under the reaction conditions studied, with unreacted tetracene always present for x < 2. Diffraction and 13C MAS NMR show that K2Tetracene has a crystal structure that is analogous to that of K2Pentacene, but with the cations ordered on two sites because of the influence of the length of the hydrocarbon on possible cation positions. K2Tetracene is a nonmagnetic insulator, thus further questioning the nature of reported superconductivity in this class of materials.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Inorg Chem
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Reino Unido