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Bis(4-aminopyridinium) dichromate(VI)

✍ Scribed by Trabelsi, Sonia; Roisnel, Thierry; Dhaouadi, Hassouna; Marouani, Houda


Book ID
125546922
Publisher
International Union of Crystallography
Year
2014
Tongue
English
Weight
558 KB
Volume
70
Category
Article
ISSN
1600-5368

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The title compound, {(C 5 H 7 N 2 ) 4 [Mo 8 O 26 ]} n , contains extended [Mo 8 O 26 ] n 4nÀ chains, built up from distorted MoO 6 octahedra sharing vertices and edges. A network of N-HÁ Á ÁO hydrogen bonds helps to stabilize the crystal packing.

Piperazinium dichromate(VI)
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The structure of the title complex, (C 4 H 12 N 2 )[Cr 2 O 7 ], consists of dichromate dianions which are connected to the cyclic organic piperazinium (pipH 2 ) 2+ dications via hydrogen bonding. There are two crystallographically independent piperazinium dications, both located on centres of invers