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ChemInform Abstract: The Hexanitridodimanganate(IV) Li6Ca2[Mn2N6]: Preparation, Crystal Structure, and Chemical Bonding.

✍ Scribed by O. HOCHREIN; Y. GRIN; R. KNIEP

Publisher: John Wiley and Sons
Year: 2010
Weight: 33 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199836010

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✦ Synopsis

Preparation, Crystal Structure, and Chemical Bonding.

-The title compound is prepared by heating a mixture of Li, Ca, and Mn under N 2 at 900 • C for 60 h. Single crystal XRD shows a trigonal structure (space group R3, Z = 3) where the N atoms are arranged according to the motif of a hexagonal close packing (stacking sequence AB); the octahedral holes of every second double layer are occupied by an ordered arrangement of Ca ions and Mn 2 dumbbells in a ratio of 2:1. The negative charges of the anionic layer structure are compensated by Li + ions, which occupy all the tetrahedral holes between the octahedral layers filled by Ca and Mn 2 dumbbells.

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