Synthesis, characterization and properties of the new ionic intercalation compound (NH+4)0.22TiS0.22-2

M. J. McKelvy, G. W. O'Bannon, E. M. Larson, R. B. Von Dreele, W. S. Glaunsinger, R. F. Marzke, J. Eckert, N. L. Ross

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

The new ionic intercalation compound (NH+4)0.22TiS0.22-2 has been synthesized by vacuum deintercalation of ammoniated TiS2, characterized by thermogravimetric analysis and powder X-ray diffraction, and examined by SQUID magnetometry (indirectly), differential scanning calorimetry, incoherent inelastic neutron scattering, and nuclear magnetic resonance. Although the diffraction pattern of this compound resembles a stage-II structure in which every other van der Waals gap is occupied by NH+4 it cannot be indexed completely on this basis. Magnetic and calorimetric measurements show that one electron is transferred to the host TiS2 conduction band per NH+4 cation and that the deintercalation enthalpy of NH+4 is 22 kcal/mol NH+4, respectively. Neutron scattering has provided evidence for an NH+4 torsional fundamental mode at 215 cm-1. The proton NMR linewidth and spin-lattice relaxation time are independent of temperature between 100 and 540 K, and the linewidth of 2.6 ± 0.3 G is in good agreement with that calculated for isotropic reorientation of the NH+4 cations.

Original languageEnglish
Pages (from-to)1323-1333
Number of pages11
JournalMaterials Research Bulletin
Volume21
Issue number11
DOIs
StatePublished - Nov 1986

Fingerprint Dive into the research topics of 'Synthesis, characterization and properties of the new ionic intercalation compound (NH<sup>+</sup><sub>4</sub>)<sub>0.22</sub>TiS<sup>0.22-</sup><sub>2</sub>'. Together they form a unique fingerprint.

  • Cite this

    McKelvy, M. J., O'Bannon, G. W., Larson, E. M., Von Dreele, R. B., Glaunsinger, W. S., Marzke, R. F., Eckert, J., & Ross, N. L. (1986). Synthesis, characterization and properties of the new ionic intercalation compound (NH+4)0.22TiS0.22-2. Materials Research Bulletin, 21(11), 1323-1333. https://doi.org/10.1016/0025-5408(86)90067-X