1-Piperonylpiperazinium picrate

IN THE CATION OF THE TITLE SALT [SYSTEMATIC NAME: 4-(2H-1,3-benzodioxol-5-ylmeth-yl)piperazin-1-ium 2,4,6-tri-nitro-phen-o-late], C12H17N2O2 (+)·C6H2N3O7 (-), the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respe...

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Published inActa crystallographica. Section E, Structure reports online Vol. 70; no. Pt 2; pp. o208 - o209
Main Authors Kavitha, Channappa N, Kaur, Manpreet, Anderson, Brian J, Jasinski, Jerry P, Yathirajan, H S
Format Journal Article
LanguageEnglish
Published United States International Union of Crystallography 01.02.2014
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Abstract IN THE CATION OF THE TITLE SALT [SYSTEMATIC NAME: 4-(2H-1,3-benzodioxol-5-ylmeth-yl)piperazin-1-ium 2,4,6-tri-nitro-phen-o-late], C12H17N2O2 (+)·C6H2N3O7 (-), the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respect to each other with an N-C-C-C torsion angle of 40.7 (2)°. In the anion, the dihedral angles between the mean planes of the nitro substituents ortho to the phenolate O atom and the mean plane of the phenyl ring are 28.8 (9) and 32.2 (8)°. In contrast, the nitro group in the para position lies much closer to the aromatic ring plane, subtending a dihedral angle of 3.0 (1)°. In the crystal, the cations and anions inter-act through N-H⋯O hydrogen bonds and a weak C-H⋯O inter-action. Weak C-H⋯O inter-actions are also observed between the anions, forming R 2 (2)(10) graph-set ring motifs. In addition, a weak centroid-centroid π-π stacking inter-action between the aromatic rings of the cation and the anion, with an inter-centroid distance of 3.7471 (9) Å, contributes to the crystal packing, resulting in a two-dimensional network along (10-1).
AbstractList In the cation of the title salt [systematic name: 4-(2 H -1,3-benzodioxol-5-ylmeth­yl)piperazin-1-ium 2,4,6-tri­nitro­phen­o­late], C 12 H 17 N 2 O 2 + ·C 6 H 2 N 3 O 7 − , the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respect to each other with an N—C—C—C torsion angle of 40.7 (2)°. In the anion, the dihedral angles between the mean planes of the nitro substituents ortho to the phenolate O atom and the mean plane of the phenyl ring are 28.8 (9) and 32.2 (8)°. In contrast, the nitro group in the para position lies much closer to the aromatic ring plane, subtending a dihedral angle of 3.0 (1)°. In the crystal, the cations and anions inter­act through N—H⋯O hydrogen bonds and a weak C—H⋯O inter­action. Weak C—H⋯O inter­actions are also observed between the anions, forming R 2 2 (10) graph-set ring motifs. In addition, a weak centroid–centroid π–π stacking inter­action between the aromatic rings of the cation and the anion, with an inter­centroid distance of 3.7471 (9) Å, contributes to the crystal packing, resulting in a two-dimensional network along (10-1).
IN THE CATION OF THE TITLE SALT [SYSTEMATIC NAME: 4-(2H-1,3-benzodioxol-5-ylmeth-yl)piperazin-1-ium 2,4,6-tri-nitro-phen-o-late], C12H17N2O2 (+)·C6H2N3O7 (-), the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respect to each other with an N-C-C-C torsion angle of 40.7 (2)°. In the anion, the dihedral angles between the mean planes of the nitro substituents ortho to the phenolate O atom and the mean plane of the phenyl ring are 28.8 (9) and 32.2 (8)°. In contrast, the nitro group in the para position lies much closer to the aromatic ring plane, subtending a dihedral angle of 3.0 (1)°. In the crystal, the cations and anions inter-act through N-H⋯O hydrogen bonds and a weak C-H⋯O inter-action. Weak C-H⋯O inter-actions are also observed between the anions, forming R 2 (2)(10) graph-set ring motifs. In addition, a weak centroid-centroid π-π stacking inter-action between the aromatic rings of the cation and the anion, with an inter-centroid distance of 3.7471 (9) Å, contributes to the crystal packing, resulting in a two-dimensional network along (10-1).
In the cation of the title salt [systematic name: 4-(2 H -1,3-benzodioxol-5-ylmethyl)piperazin-1-ium 2,4,6-trinitrophenolate], C 12 H 17 N 2 O 2 + ·C 6 H 2 N 3 O 7 − , the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respect to each other with an N—C—C—C torsion angle of 40.7 (2)°. In the anion, the dihedral angles between the mean planes of the nitro substituents ortho to the phenolate O atom and the mean plane of the phenyl ring are 28.8 (9) and 32.2 (8)°. In contrast, the nitro group in the para position lies much closer to the aromatic ring plane, subtending a dihedral angle of 3.0 (1)°. In the crystal, the cations and anions interact through N—H...O hydrogen bonds and a weak C—H...O interaction. Weak C—H...O interactions are also observed between the anions, forming R 2 2 (10) graph-set ring motifs. In addition, a weak centroid–centroid π–π stacking interaction between the aromatic rings of the cation and the anion, with an intercentroid distance of 3.7471 (9) Å, contributes to the crystal packing, resulting in a two-dimensional network along (10-1).
In the cation of the title salt [systematic name: 4-(2H-1,3-benzodioxol-5-ylmethyl)piperazin-1-ium 2,4,6-trinitrophenolate], C12H17N2O2+·C6H2N3O7−, the piperazine ring adopts a slightly disordered chair conformation. The piperonyl ring system and the piperazine ring are twisted with respect to each other with an N—C—C—C torsion angle of 40.7 (2)°. In the anion, the dihedral angles between the mean planes of the nitro substituents ortho to the phenolate O atom and the mean plane of the phenyl ring are 28.8 (9) and 32.2 (8)°. In contrast, the nitro group in the para position lies much closer to the aromatic ring plane, subtending a dihedral angle of 3.0 (1)°. In the crystal, the cations and anions interact through N—H...O hydrogen bonds and a weak C—H...O interaction. Weak C—H...O interactions are also observed between the anions, forming R22(10) graph-set ring motifs. In addition, a weak centroid–centroid π–π stacking interaction between the aromatic rings of the cation and the anion, with an intercentroid distance of 3.7471 (9) Å, contributes to the crystal packing, resulting in a two-dimensional network along (10-1).
Author Yathirajan, H S
Jasinski, Jerry P
Anderson, Brian J
Kavitha, Channappa N
Kaur, Manpreet
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Snippet IN THE CATION OF THE TITLE SALT [SYSTEMATIC NAME: 4-(2H-1,3-benzodioxol-5-ylmeth-yl)piperazin-1-ium 2,4,6-tri-nitro-phen-o-late], C12H17N2O2 (+)·C6H2N3O7 (-),...
In the cation of the title salt [systematic name: 4-(2 H -1,3-benzodioxol-5-ylmethyl)piperazin-1-ium 2,4,6-trinitrophenolate], C 12 H 17 N 2 O 2 + ·C 6 H 2 N 3...
In the cation of the title salt [systematic name: 4-(2 H -1,3-benzodioxol-5-ylmeth­yl)piperazin-1-ium 2,4,6-tri­nitro­phen­o­late], C 12 H 17 N 2 O 2 + ·C 6 H...
In the cation of the title salt [systematic name: 4-(2H-1,3-benzodioxol-5-ylmethyl)piperazin-1-ium 2,4,6-trinitrophenolate], C12H17N2O2+·C6H2N3O7−, the...
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Title 1-Piperonylpiperazinium picrate
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