Crystal structure of the Ca16Ni173.14In62.61
compound
Chem.
Met. Alloys 7 (2014) 123-131
https://doi.org/10.30970/cma7.0258
Anton KHARKHALIS, Volodymyr BARAN, Ihor MUTS, Viktor HLUKHYY, Thomas F. FÄSSLER, Vasyl’ ZAREMBA
The new ternary indide
Ca16Ni173.14In62.61 was synthesized from the
elements by arc-melting and its crystal structure was determined by means of
X-ray single crystal diffraction. The compound crystallizes in its own
structure type: space group P21/m (No. 11), Z = 1, mP254, a = 1.5374(3) nm, b = 1.6565(9) nm, c = 1.5911(2) nm, β = 115.434(7)º, wR2 = 0.0715, 6674 F2 values, 691 variable
parameters. The compound Ca16Ni173.14In62.61 exists
only in as-cast samples and decomposes during annealing at 1070 K
with the formation of CaNi9-xIn2+x. In the structure of Ca16Ni173.14In62.61
the nickel atoms build complex puckered two-dimensional Ni-slabs, which are
interconnected along the [110] direction
by indium atoms into a [Ni173.14In62.61] network, in
the cavities of which the calcium atoms are situated.
Cutouts of the nickel (copper) cluster units from
structures with high 3d-metal content
in AE – 3d-metal – In systems.
Keywords
Indide /
Crystal structure / Single crystal