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 language | English (US) |
|---|---|
| Pages (from-to) | 1323-1333 |
| Number of pages | 11 |
| Journal | Materials Research Bulletin |
| Volume | 21 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1986 |
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ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
Cite this
Synthesis, characterization and properties of the new ionic intercalation compound (NH+ 4)0.22TiS0.22- 2 . / 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.
In: Materials Research Bulletin, Vol. 21, No. 11, 1986, p. 1323-1333.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis, characterization and properties of the new ionic intercalation compound (NH+ 4)0.22TiS0.22- 2
AU - McKelvy, M. J.
AU - O'Bannon, G. W.
AU - Larson, E. M.
AU - Von Dreele, R. B.
AU - Glaunsinger, W. S.
AU - Marzke, R. F.
AU - Eckert, J.
AU - Ross, N. L.
PY - 1986
Y1 - 1986
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0022807876&partnerID=8YFLogxK
U2 - 10.1016/0025-5408(86)90067-X
DO - 10.1016/0025-5408(86)90067-X
M3 - Article
AN - SCOPUS:0022807876
VL - 21
SP - 1323
EP - 1333
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 11
ER -