Affiliation:
1. Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149 Münster, Germany
Abstract
Abstract
La3Ir2 is formed upon reaction of the elements at 1273 K in a sealed silica ampoule. The structure was refined from single-crystal X-ray diffractometer data: Er3Ni2-type structure, R3̅, a=895.26(2), c=1713:01(5) pm, wR=0.0578, 766 F2 values, 25 variables. The structure is composed of two simple basic building units: slightly distorted La1@La36La22 cubes resembling the tungsten structure and Ir2@La11La22La35 units with an AlB2-related coordination (298 pm Ir-Ir in the dumb-bell). Each cube is coordinated by six of the AlB2 units. The relationship with the U3Si2-type structure is discussed.
Cited by
1 articles.
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