TY - JOUR
T1 - Synthesis and physical properties of M4M′3Mo26O48 (M = Sr, Eu; M′ = Al, Ga) containing Mo7 clusters and infinite Mo7-Mo10-Mo7 chains
AU - Tortelier, J.
AU - Gougeon, P.
AU - Ramanujachary, K. V.
AU - Greenblatt, M.
N1 - Funding Information:
One of us (K.V.R.) thanks Rowan University for the award of a probationary assistance grant (275915). M.G.’s work was supported by the National Science Foundation, Solid State Chemistry Grant DMR-96-13106.
PY - 1998
Y1 - 1998
N2 - We present the synthesis and physical properties of the M4M′3Mo26O48 (M = Sr, Eu; M′ = Al, Ga) compounds. The latter crystallize in the monoclinic P21/c space group. Their crystal structure is characterized by monocapped octahedral Mo7 clusters and infinite chai ns based on the tricluster Mo7-Mo10-Mo7 unit with oxygen atoms above all free apices and edges. Both cluster units are arranged in layers parallel to the ac plane. These compounds show semiconducting behavior with activation energies of about 0.12 eV at high-temperature and room-temperature resistivities in the range 0.16-0.47 Ω·cm. The magnetic susceptibility data indicated paramagnetic behavior due to the Eu2+ moment at high temperature and did not reveal the existence of localized moments on the Mo sublattice.
AB - We present the synthesis and physical properties of the M4M′3Mo26O48 (M = Sr, Eu; M′ = Al, Ga) compounds. The latter crystallize in the monoclinic P21/c space group. Their crystal structure is characterized by monocapped octahedral Mo7 clusters and infinite chai ns based on the tricluster Mo7-Mo10-Mo7 unit with oxygen atoms above all free apices and edges. Both cluster units are arranged in layers parallel to the ac plane. These compounds show semiconducting behavior with activation energies of about 0.12 eV at high-temperature and room-temperature resistivities in the range 0.16-0.47 Ω·cm. The magnetic susceptibility data indicated paramagnetic behavior due to the Eu2+ moment at high temperature and did not reveal the existence of localized moments on the Mo sublattice.
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U2 - 10.1016/S0025-5408(98)00107-X
DO - 10.1016/S0025-5408(98)00107-X
M3 - Article
AN - SCOPUS:0032132163
SN - 0025-5408
VL - 33
SP - 1151
EP - 1157
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 8
ER -