Abstract
The layered dichalcogenides1 MoS2 and MoSe2 are of special interest as lubricants, 2 catalysts, and catalyst supports for hydrodesulfurization reactions, 3 precursors of intercalation superconductors, 4 and possible electrodes for photoelectrolysis.5 In the pure, stoichiometric state they are moderate-gap semiconductors (1.75 eV for MoS2 and 1.4 eV for MoSe2), 5 presumably because the characteristic trigonal splitting of the d orbitals leads to filled d subbands. As part of a larger study on how small changes in chemical parameters affect superconductivity, we have had occasion to prepare the full solid solution series MoS2-xSex (0 < × < 2). The end compounds form both 2H and 3R polytypes. In each case, molybdenum atoms occupy trigonal-prismatic sites within the layers. In addition, in the system MoS2-xSex, a continuous series of solid solutions can be prepared, all having the same 2H two-layer hexagonal structure (space group P63/mmc). We report in this communication the evolution of lattice parameters of the mixed-anion system.
| Original language | English |
|---|---|
| Pages (from-to) | 789-791 |
| Number of pages | 3 |
| Journal | Inorganic Chemistry |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Jan 1980 |
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Crystal Data for Mixed-Anion Molybdenum Dichalcogenides. / Schneemeyer, Lynn; Sienko, M. J.
In: Inorganic Chemistry, Vol. 19, No. 3, 01.01.1980, p. 789-791.Research output: Contribution to journal › Article
TY - JOUR
T1 - Crystal Data for Mixed-Anion Molybdenum Dichalcogenides
AU - Schneemeyer, Lynn
AU - Sienko, M. J.
PY - 1980/1/1
Y1 - 1980/1/1
N2 - The layered dichalcogenides1 MoS2 and MoSe2 are of special interest as lubricants, 2 catalysts, and catalyst supports for hydrodesulfurization reactions, 3 precursors of intercalation superconductors, 4 and possible electrodes for photoelectrolysis.5 In the pure, stoichiometric state they are moderate-gap semiconductors (1.75 eV for MoS2 and 1.4 eV for MoSe2), 5 presumably because the characteristic trigonal splitting of the d orbitals leads to filled d subbands. As part of a larger study on how small changes in chemical parameters affect superconductivity, we have had occasion to prepare the full solid solution series MoS2-xSex (0 < × < 2). The end compounds form both 2H and 3R polytypes. In each case, molybdenum atoms occupy trigonal-prismatic sites within the layers. In addition, in the system MoS2-xSex, a continuous series of solid solutions can be prepared, all having the same 2H two-layer hexagonal structure (space group P63/mmc). We report in this communication the evolution of lattice parameters of the mixed-anion system.
AB - The layered dichalcogenides1 MoS2 and MoSe2 are of special interest as lubricants, 2 catalysts, and catalyst supports for hydrodesulfurization reactions, 3 precursors of intercalation superconductors, 4 and possible electrodes for photoelectrolysis.5 In the pure, stoichiometric state they are moderate-gap semiconductors (1.75 eV for MoS2 and 1.4 eV for MoSe2), 5 presumably because the characteristic trigonal splitting of the d orbitals leads to filled d subbands. As part of a larger study on how small changes in chemical parameters affect superconductivity, we have had occasion to prepare the full solid solution series MoS2-xSex (0 < × < 2). The end compounds form both 2H and 3R polytypes. In each case, molybdenum atoms occupy trigonal-prismatic sites within the layers. In addition, in the system MoS2-xSex, a continuous series of solid solutions can be prepared, all having the same 2H two-layer hexagonal structure (space group P63/mmc). We report in this communication the evolution of lattice parameters of the mixed-anion system.
UR - http://www.scopus.com/inward/record.url?scp=0142035910&partnerID=8YFLogxK
U2 - 10.1021/ic50205a047
DO - 10.1021/ic50205a047
M3 - Article
AN - SCOPUS:0142035910
VL - 19
SP - 789
EP - 791
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 3
ER -