TY - JOUR
T1 - The phosphides U6Fe30P19 and U 6Co30P19 with the Yb6Co 30P19 structure type
AU - Tarasenko, Mariya S.
AU - Albering, Jörg H.
AU - Jeitschko, Wolfgang
AU - Ibers, James A.
PY - 2014/6
Y1 - 2014/6
N2 - Powders of U6Fe30P19 and U 6Co30P19 were synthesized through the use of tin fluxes. Examination of these powders at 298 K by the Guinier technique led to lattice parameters in the hexagonal system for U6Fe 30P19 of a = 14.762(2) Å, c = 3.6315(4) Å, c/a = 0.2460, V = 685.3 Å3 and for U6Co 30P19 of a = 14.722(3) Å, c = 3.6355(6) Å, c/a = 0.2469, V = 682.4 Å3. Single crystals of U 6Fe30P19 were synthesized and its structure was determined. U6Fe30P19 crystallizes in the space group C1,3h - P$\bar{6}$ of the hexagonal system in the Yb6Co30P19 structure type with one formula unit in a cell of dimensions determined at 100 K of a = 14.7206(4) Å, c = 3.6243(1) Å, c/a = 0.2462, V = 680.15(4) Å3. The asymmetric unit of U6Fe30P 19 comprises two U, ten Fe, and seven different P atoms. Each U atom is situated in a trigonal prism of six P atoms; each Fe atom is coordinated either by a tetrahedron or a square pyramid of P atoms. The distances are all less than 2.9 Å. In addition, the structure contains numerous Fe-Fe bonds covering the range from 2.55 to 2.71 Å. The proper space group of the Yb6Co30P19 structure type is discussed.
AB - Powders of U6Fe30P19 and U 6Co30P19 were synthesized through the use of tin fluxes. Examination of these powders at 298 K by the Guinier technique led to lattice parameters in the hexagonal system for U6Fe 30P19 of a = 14.762(2) Å, c = 3.6315(4) Å, c/a = 0.2460, V = 685.3 Å3 and for U6Co 30P19 of a = 14.722(3) Å, c = 3.6355(6) Å, c/a = 0.2469, V = 682.4 Å3. Single crystals of U 6Fe30P19 were synthesized and its structure was determined. U6Fe30P19 crystallizes in the space group C1,3h - P$\bar{6}$ of the hexagonal system in the Yb6Co30P19 structure type with one formula unit in a cell of dimensions determined at 100 K of a = 14.7206(4) Å, c = 3.6243(1) Å, c/a = 0.2462, V = 680.15(4) Å3. The asymmetric unit of U6Fe30P 19 comprises two U, ten Fe, and seven different P atoms. Each U atom is situated in a trigonal prism of six P atoms; each Fe atom is coordinated either by a tetrahedron or a square pyramid of P atoms. The distances are all less than 2.9 Å. In addition, the structure contains numerous Fe-Fe bonds covering the range from 2.55 to 2.71 Å. The proper space group of the Yb6Co30P19 structure type is discussed.
KW - Crystal structures
KW - Solid-state phosphides
KW - Transition metals
KW - Uranium
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U2 - 10.1002/zaac.201300603
DO - 10.1002/zaac.201300603
M3 - Article
AN - SCOPUS:84902491171
SN - 0044-2313
VL - 640
SP - 1342
EP - 1346
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 7
ER -