Crystal structure and stoichiometric composition of potassium-intercalated tetracene

Hiley, Craig, Inglis, Kenneth, Zanella, Marco, Zhang, Jiliang, Manning, Troy, Dyer, Matthew, Knaflič, Tilen, Arčon, Denis, Blanc, Frederic and Rosseinsky, Matthew (2019) Crystal structure and stoichiometric composition of potassium-intercalated tetracene. [Data Collection]

Data Catalogue DOI: 10.17638/datacat.liverpool.ac.uk/987

Description

KxTetracene (1 ≤ x ≤ 2) was prepared for the first time by the solid state reaction of K metal and tetracene. Synchrotron powder X-ray diffraction shows that only K2Tetracene forms under the reaction conditions studied, with unreacted tTetracene present for x < 2, and has a crystal structure analogous to K2Pentacene. The crystal structure data, and indirectly validated by 13C MAS NMR, of K2Tetracene show that the K+ cations reside in two sites that are not disordered due to the limited sites on which they can reside. No superconductivity was observed for K2Tetracene further questioning the nature of reported superconductivity in this class of materials.

Keywords:

intercalation, crystal structure, tetracene,

Divisions:

Faculty of Science and Engineering > School of Physical Sciences

Depositing User:

Troy Manning

Date Deposited:

10 Jul 2020 14:24

Last Modified:

10 Jul 2020 15:22

DOI:

10.17638/datacat.liverpool.ac.uk/987