Missing Carbodiimide and Oxide Carbodiimide of Scandium: Sc2(CN2)3 and Sc2O2(CN2)

Missing Carbodiimide and Oxide Carbodiimide of Scandium: Sc2(CN2)3 and Sc2O2(CN2)

The new scandium(III) carbodiimides Sc2(CN2)3 and Sc2O2(CN2) were prepared by solid‐state metathesis reactions between Li2(CN2) and ScCl3 and, regarding Sc2O2(CN2), Sc2O3 was added. The X‐ray powder diffraction pattern refinements lead to a trigonal‐rhombohedral (R3c) crystal system for Sc2(CN2)3 an...

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Veröffentlicht in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2020-08, Vol.646 (15), p.1281-1284
Hauptverfasser: Kallenbach, Paula, Ströbele, Markus, Meyer, Hans‐Jürgen
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Sprache:eng
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Carbodiimide
Carbodiimides
Crystal structure
Crystals
Diffraction patterns
Gadolinium
Metathesis
Rare earths
Scandium oxides
Structure elucidation
Synthesis
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container_issue 15
container_start_page 1281
container_title Zeitschrift für anorganische und allgemeine Chemie (1950)
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creator Kallenbach, Paula
Ströbele, Markus
Meyer, Hans‐Jürgen
description The new scandium(III) carbodiimides Sc2(CN2)3 and Sc2O2(CN2) were prepared by solid‐state metathesis reactions between Li2(CN2) and ScCl3 and, regarding Sc2O2(CN2), Sc2O3 was added. The X‐ray powder diffraction pattern refinements lead to a trigonal‐rhombohedral (R3c) crystal system for Sc2(CN2)3 and to an orthorhombic (Immm) crystal system for Sc2O2(CN2). The structure of Sc2(CN2)3 is isotypic to the well‐known rare earth carbodiimides RE2(CN2)3 with the smaller cations RE = Tm, Yb, and Lu, whereas Sc2O2(CN2) is not isotypic to the known RE2O2(CN2) (RE = Y, La, Ce–Gd, except Pm) compounds. Both crystal structures are represented by layered arrangements of scandium, respectively scandium and oxide, alternating with carbodiimide layers.
doi_str_mv 10.1002/zaac.202000212
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source Wiley Online Library Journals Frontfile Complete
subjects Carbodiimide
Carbodiimides
Crystal structure
Crystals
Diffraction patterns
Gadolinium
Metathesis
Rare earths
Scandium oxides
Structure elucidation
Synthesis
title Missing Carbodiimide and Oxide Carbodiimide of Scandium: Sc2(CN2)3 and Sc2O2(CN2)
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