alexa Abstract | Synthesis, Crystal Structure and Hirshfeld Surface Analysis of N,N,N’,N’- Tetramethylethylenediammonium dichromate (C6H18N2)[Cr2O7]

Structural Chemistry & Crystallography Communication
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In the title salt, C6 H18N2 2+.Cr2 O7 2−, (I), one dication is organized around an inversion centre located at the centre of the -CH2 -CH2 - bridge and the two dimethylamine groups are anti with respect to one another. One dichromate anion in (I) also exhibits inversion symmetry. In the crystal, the cations and anions form a layered arrangement parallel to (110) plane. Normal and bifurcated N-H…O hydrogen bonds between the cations and anions and additional weak C-H…O interactions lead to the formation of a three-dimensional network structure. The threedimensional Hirshfeld surfaces (3D-HS) analysis shows closely similar Hirschfeld surface shapes for the two dications in the salt, reflecting similar intermolecular contacts and similar conformations. The two-dimensional fingerprint plots(2D-FP) are quite asymmetric, due to the presence of more than one component (cation and anion). 3D-HS and 2D-FP reveal that the structure is dominated by H…O (63%) and H…H (37%) contacts.

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Author(s): Aouina A Chebbi H Raymond F and Zid MF


Nano Structures,Single Crystal,Crystalline Solids,Amorphous Solids

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