@article{ref1,
title="On the silicides EuIr2Si2 and Lu5Si 3",
journal="Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences",
year="2004",
author="Rodewald, U.Ch. and Heying, B. and Johrendt, D. and Pöttgen, R.",
volume="59",
number="9",
pages="969-974",
abstract="EuIr2Si2 was synthesized from the elements in a sealed tantalum tube in a water-cooled sample chamber of an induction furnace. Lu5Si3 was obtained by arc-melting of the elements. Both suicides were investigated by X-ray powder and single crystal diffraction: BaAl4 type, I4/mmm, a = 407.4(1), c = 1010.8(7) pm, wR2 = 0.0492, 134 F2 values, 9 variables for EuIr2Si2 and Mn5Si3 type, P63/mcm, a = 820.0(1), c = 614.2(1) pm, wR2 = 0.0511, 311 F2 values and 12 variables for Lu 5Si3. The iridium and silicon atoms in EuIr 2Si2 build up a three-dimensional [Ir2Si 2] network with Ir-Si and Si-Si interactions. The europium atoms fill cages within the network. The metal-rich suicide Lu5Si3 contains columns of face-sharing, empty Lu6 octahedra and isolated silicon atoms in a distorted tri-capped trigonal prismatic coordination. Chemical bonding in these suicides is briefly discussed.<p /><p>Language: en</p>",
language="en",
issn="0932-0776",
doi="10.1515/znb-2004-0904",
url="http://dx.doi.org/10.1515/znb-2004-0904"
}