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Nitrogen‐Rich Compounds of the Lanthanoids: Highlights and Summary
Authors:Georg Steinhauser  Gerald Giester  Nicolae Leopold  Christoph Wagner  Mario Villa  Andreas Musilek
Institution:1. Vienna University of Technology, Atominstitut der ?sterreichischen Universit?ten, Stadionallee 2, AT‐1020 Vienna (phone: +43?1?58801?14189;2. fax: +43?1?58801?14199);3. University of Vienna, Institute of Mineralogy and Crystallography, Althanstrasse 14, AT‐1090 Vienna;4. Babe?‐Bolyai University, Faculty of Physics, Kogalniceanu 1, RO‐400084 Cluj‐Napoca;5. Vienna University of Technology, Institut für Chemische Technologie und Analytik, Getreidemarkt, 9/164, AT‐1060 Vienna
Abstract:In this third part of our research on the 5,5′‐azobis1H‐tetrazol‐1‐ides] (ZT) of the lanthanoids, we present two compounds with La2(ZT)3 moieties with very different coordination modes between the cations and the anions. One La2(ZT)3‐containing compound is interesting, because it contains trimeric La3(ZT)3III cations, which are arranged in a windmill‐like structure. Moreover, the first double salt of a ZT compound, namely the carbonate compound La2(ZT)2(CO3)?12 H2O, is presented and discussed. Another highlight of nitrogen chemistry is the first molecular structure of a 5‐azido‐2H‐tetrazole (CHN7) molecule, in the form of the spectacular compound Dy2(ZT)3?4 CHN7?24 H2O. This is the first known complete molecular structure of an azidotetrazole molecule (the organic molecule with the highest nitrogen‐content: 88.3% N). All compounds have been characterized completely including elemental analyses, vibrational (IR and Raman) spectroscopy, and X‐ray crystal‐structure determination. We summarize our ‘nitrogen‐rich compounds of the lanthanoids’ project and extensively discuss selected literature on this topic and compare previously published results with ours.
Keywords:5  5′  ‐Azotetrazolates  5‐Azidotetrazole  Tetrazole azide  Tetrazolylazide  Rare earth elements  Lanthanum complexes  Dysprosium complexes  X‐Ray crystallography
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