organic compounds
N,N-diethylbenzene-1,4-diaminium dinitrate
ofaUnité de Recherche de Chimie de l'Environnement et Moléculaire Structurale (CHEMS), Université Constantine 1, Constantine 25000, Algeria, bScience and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia, and cDépartement de Technologie, Faculté de Technologie, Université 20 Août 1955-Skikda, BP 26, Route d'El-Hadaiek, Skikda 21000, Algeria
*Correspondence e-mail: g.smith@qut.edu.au, setifi_zouaoui@yahoo.fr
In the structure of the title molecular salt, C10H18N22+·2NO3−, the dinitrate salt of 4-(N,N-diethylamino)aniline, the two ethyl groups lie almost perpendicular to the plane of the benzene ring [the ring-to-ethyl C—C—N—C torsion angles are −59.5 (2) and 67.5 (3)°]. The aminium groups of the cation form inter-species N—H⋯O hydrogen bonds with the nitro O-atom acceptors of both anions, giving rise to chain substructures lying along c. The chains are linked via further N—H⋯O hydrogen bonds, forming two-dimensional networks lying parallel to (010). These sheets are linked by C—H⋯O hydrogen bonds, forming a three-dimensional structure.
Keywords: crystal structure; diaminium; nitrate salt; hydrogen bonding.
CCDC reference: 1029930
1. Related literature
For the structures of metal complex structures with dicationic 4-[N,N-diethylamino)aniline or 4-[N,N-diethylamino)-2-methylaniline species as counter-ions, see: Dobrzycki & Woźniak (2008); Bringley et al. (2005). For the structure of similar dicationic benzene-1,4-diaminium species, see: Chandrasekaran (1969); Anderson et al. (2006).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2009); cell APEX2 and SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 2012); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supporting information
CCDC reference: 1029930
10.1107/S1600536814022946/su5003sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814022946/su5003Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814022946/su5003Isup3.cml
The title compound was synthesized from a mixture of Ni(NO3)2. 6H2O (291 mg, 1 mmol) and 4-(N,N-diethylamino)aniline sulfate (262 mg, 1 mmol) in methanol (40 ml). The resulting solution was stirred for 30 min at room temperature. After 10 d, single crystals suitable for X-ray diffraction were collected by filtration, washed with water and dried in air (yield 35%).
N-bound H atoms were located from a difference Fourier map and included in the
with restraints [N—H = 0.88 (2) Å] and allowed to ride with Uiso(H) = 1.2Ueq(N). Other H-atoms were placed in calculated positions [C—H = 0.93 Å (aromatic), 0.97 Å (methylene) and 0.96 Å (methyl)] and allowed to ride in the with Uiso(H) = 1.2Ueq(C) (aromatic and methylene) or 1.5Ueq(C) (methyl).Data collection: APEX2 (Bruker, 2009); cell
APEX2 and SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 2012); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON (Spek, 2009).The molecular structure of the title salt, with atom labelling. Displacement ellipsoids are drawn at the 30% probability level. Hydrogen bonds are shown as dashed lines (see Table 1 for details). A partial extension of the cation–anion chain in the title salt in the viewed along a. Non-associative H-atoms are omitted and formal hydrogen-bonding associations are shown as dashed lines (see Table 1 for details; for symmetry codes see Table 1). The crystal packing of the title salt viewed along c, illustrating the three-dimensional structure. Hydrogen bonds are shown as dashed lines (see Table 1 for details). |
C10H18N22+·2NO3− | F(000) = 2464 |
Mr = 290.28 | Dx = 1.325 Mg m−3 |
Orthorhombic, Fdd2 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: F 2 -2d | Cell parameters from 6123 reflections |
a = 38.821 (5) Å | θ = 2.4–30.4° |
b = 20.900 (5) Å | µ = 0.11 mm−1 |
c = 7.172 (5) Å | T = 293 K |
V = 5819 (4) Å3 | Plate, brown |
Z = 16 | 0.30 × 0.18 × 0.09 mm |
Bruker APEXII CCD diffractometer | 3156 independent reflections |
Radiation source: fine-focus sealed tube | 2522 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.046 |
ω–2θ scans | θmax = 27.4°, θmin = 2.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −50→42 |
Tmin = 0.950, Tmax = 0.988 | k = −21→26 |
7645 measured reflections | l = −8→9 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.111 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0471P)2 + 2.0648P] where P = (Fo2 + 2Fc2)/3 |
3156 reflections | (Δ/σ)max = 0.001 |
193 parameters | Δρmax = 0.17 e Å−3 |
5 restraints | Δρmin = −0.19 e Å−3 |
C10H18N22+·2NO3− | V = 5819 (4) Å3 |
Mr = 290.28 | Z = 16 |
Orthorhombic, Fdd2 | Mo Kα radiation |
a = 38.821 (5) Å | µ = 0.11 mm−1 |
b = 20.900 (5) Å | T = 293 K |
c = 7.172 (5) Å | 0.30 × 0.18 × 0.09 mm |
Bruker APEXII CCD diffractometer | 3156 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2522 reflections with I > 2σ(I) |
Tmin = 0.950, Tmax = 0.988 | Rint = 0.046 |
7645 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 5 restraints |
wR(F2) = 0.111 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.17 e Å−3 |
3156 reflections | Δρmin = −0.19 e Å−3 |
193 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
N1 | 0.49457 (4) | 0.17907 (9) | 0.4684 (3) | 0.0325 (5) | |
N2 | 0.59991 (4) | 0.03665 (8) | 0.1133 (3) | 0.0347 (5) | |
C1 | 0.52168 (4) | 0.14297 (9) | 0.3774 (3) | 0.0279 (5) | |
C2 | 0.54483 (5) | 0.17368 (10) | 0.2631 (3) | 0.0326 (6) | |
C3 | 0.57043 (5) | 0.13844 (10) | 0.1755 (3) | 0.0334 (6) | |
C4 | 0.57233 (4) | 0.07369 (9) | 0.2053 (3) | 0.0298 (6) | |
C5 | 0.54930 (5) | 0.04263 (10) | 0.3202 (3) | 0.0438 (7) | |
C6 | 0.52374 (5) | 0.07787 (10) | 0.4069 (3) | 0.0427 (7) | |
C7 | 0.58608 (6) | −0.00904 (11) | −0.0298 (4) | 0.0496 (8) | |
C8 | 0.62331 (6) | 0.00310 (12) | 0.2507 (4) | 0.0482 (8) | |
C9 | 0.56544 (8) | 0.02374 (14) | −0.1775 (4) | 0.0669 (10) | |
C10 | 0.63942 (7) | 0.04803 (16) | 0.3874 (5) | 0.0715 (10) | |
O1 | 0.63464 (4) | 0.13421 (8) | −0.1120 (3) | 0.0636 (6) | |
O2 | 0.66914 (4) | 0.05414 (9) | −0.1229 (3) | 0.0650 (7) | |
O3 | 0.68100 (4) | 0.13959 (8) | −0.2769 (2) | 0.0463 (5) | |
N4 | 0.66175 (4) | 0.10900 (9) | −0.1699 (2) | 0.0370 (5) | |
O4 | 0.47981 (6) | 0.10514 (10) | 0.8776 (4) | 0.1004 (10) | |
O5 | 0.50571 (4) | 0.19404 (7) | 0.8419 (2) | 0.0464 (5) | |
O6 | 0.47157 (5) | 0.18295 (13) | 1.0743 (3) | 0.0839 (8) | |
N3 | 0.48499 (5) | 0.15919 (11) | 0.9348 (3) | 0.0503 (7) | |
H1A | 0.4986 (5) | 0.1832 (10) | 0.591 (2) | 0.0390* | |
H1B | 0.4959 (5) | 0.2192 (8) | 0.428 (3) | 0.0390* | |
H1C | 0.4749 (4) | 0.1587 (10) | 0.448 (3) | 0.0390* | |
H2 | 0.54330 | 0.21760 | 0.24480 | 0.0390* | |
H3 | 0.58620 | 0.15850 | 0.09710 | 0.0400* | |
H5 | 0.55090 | −0.00130 | 0.33920 | 0.0530* | |
H6 | 0.50800 | 0.05770 | 0.48500 | 0.0510* | |
H7A | 0.60520 | −0.03140 | −0.08780 | 0.0600* | |
H7B | 0.57170 | −0.04060 | 0.03180 | 0.0600* | |
H8A | 0.61010 | −0.02880 | 0.31810 | 0.0580* | |
H8B | 0.64140 | −0.01890 | 0.18270 | 0.0580* | |
H9A | 0.55700 | −0.00740 | −0.26470 | 0.1010* | |
H9B | 0.57970 | 0.05410 | −0.24160 | 0.1010* | |
H9C | 0.54630 | 0.04560 | −0.12110 | 0.1010* | |
H10A | 0.65400 | 0.02450 | 0.47070 | 0.1070* | |
H10B | 0.62170 | 0.06920 | 0.45760 | 0.1070* | |
H10C | 0.65280 | 0.07930 | 0.32170 | 0.1070* | |
H21 | 0.6122 (5) | 0.0669 (9) | 0.063 (3) | 0.0420* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0309 (8) | 0.0341 (10) | 0.0325 (9) | −0.0016 (7) | 0.0053 (7) | −0.0021 (8) |
N2 | 0.0328 (8) | 0.0319 (9) | 0.0393 (10) | 0.0006 (7) | 0.0112 (8) | −0.0013 (8) |
C1 | 0.0254 (8) | 0.0315 (10) | 0.0269 (10) | 0.0005 (7) | 0.0000 (7) | −0.0008 (9) |
C2 | 0.0324 (9) | 0.0246 (10) | 0.0407 (11) | −0.0032 (8) | 0.0056 (9) | 0.0027 (8) |
C3 | 0.0310 (9) | 0.0332 (10) | 0.0360 (11) | −0.0076 (8) | 0.0083 (8) | 0.0025 (9) |
C4 | 0.0285 (9) | 0.0274 (10) | 0.0336 (10) | 0.0003 (8) | 0.0060 (8) | −0.0021 (9) |
C5 | 0.0471 (12) | 0.0260 (11) | 0.0582 (14) | 0.0007 (9) | 0.0193 (11) | 0.0061 (10) |
C6 | 0.0411 (11) | 0.0346 (12) | 0.0523 (14) | −0.0042 (9) | 0.0210 (10) | 0.0096 (11) |
C7 | 0.0531 (12) | 0.0396 (13) | 0.0562 (15) | −0.0013 (10) | 0.0095 (12) | −0.0171 (12) |
C8 | 0.0400 (11) | 0.0537 (15) | 0.0510 (13) | 0.0125 (10) | 0.0069 (11) | 0.0077 (12) |
C9 | 0.0802 (17) | 0.068 (2) | 0.0525 (15) | −0.0061 (15) | −0.0071 (15) | −0.0158 (16) |
C10 | 0.0478 (13) | 0.099 (2) | 0.0676 (18) | 0.0045 (14) | −0.0118 (14) | 0.0000 (18) |
O1 | 0.0462 (9) | 0.0616 (11) | 0.0829 (13) | 0.0066 (8) | 0.0289 (10) | −0.0033 (11) |
O2 | 0.0620 (10) | 0.0481 (10) | 0.0850 (14) | 0.0088 (8) | 0.0077 (11) | 0.0312 (11) |
O3 | 0.0395 (8) | 0.0460 (9) | 0.0534 (10) | 0.0014 (7) | 0.0143 (7) | 0.0140 (8) |
N4 | 0.0318 (8) | 0.0412 (10) | 0.0380 (10) | −0.0007 (8) | 0.0055 (8) | −0.0010 (9) |
O4 | 0.1129 (17) | 0.0573 (13) | 0.131 (2) | −0.0358 (12) | 0.0083 (18) | 0.0035 (16) |
O5 | 0.0603 (9) | 0.0431 (9) | 0.0359 (8) | −0.0042 (7) | 0.0010 (8) | −0.0006 (8) |
O6 | 0.0538 (10) | 0.156 (2) | 0.0418 (10) | 0.0075 (12) | 0.0096 (9) | −0.0029 (14) |
N3 | 0.0427 (10) | 0.0652 (14) | 0.0429 (11) | −0.0016 (10) | −0.0053 (9) | 0.0083 (11) |
O1—N4 | 1.248 (2) | C4—C5 | 1.378 (3) |
O2—N4 | 1.229 (3) | C5—C6 | 1.383 (3) |
O3—N4 | 1.247 (2) | C7—C9 | 1.495 (4) |
O4—N3 | 1.219 (3) | C8—C10 | 1.495 (4) |
O5—N3 | 1.273 (3) | C2—H2 | 0.9300 |
O6—N3 | 1.233 (3) | C3—H3 | 0.9300 |
N1—C1 | 1.450 (3) | C5—H5 | 0.9300 |
N2—C4 | 1.477 (3) | C6—H6 | 0.9300 |
N2—C8 | 1.513 (3) | C7—H7A | 0.9700 |
N2—C7 | 1.501 (3) | C7—H7B | 0.9700 |
N1—H1B | 0.889 (17) | C8—H8A | 0.9700 |
N1—H1C | 0.886 (17) | C8—H8B | 0.9700 |
N1—H1A | 0.897 (15) | C9—H9B | 0.9600 |
N2—H21 | 0.87 (2) | C9—H9A | 0.9600 |
C1—C2 | 1.375 (3) | C9—H9C | 0.9600 |
C1—C6 | 1.379 (3) | C10—H10C | 0.9600 |
C2—C3 | 1.387 (3) | C10—H10A | 0.9600 |
C3—C4 | 1.372 (3) | C10—H10B | 0.9600 |
C4—N2—C7 | 112.31 (15) | C1—C2—H2 | 120.00 |
C4—N2—C8 | 112.79 (19) | C3—C2—H2 | 120.00 |
C7—N2—C8 | 111.43 (17) | C4—C3—H3 | 120.00 |
H1A—N1—H1B | 102.6 (19) | C2—C3—H3 | 120.00 |
H1A—N1—H1C | 111.0 (19) | C4—C5—H5 | 121.00 |
H1B—N1—H1C | 116.7 (18) | C6—C5—H5 | 120.00 |
C1—N1—H1B | 107.6 (13) | C5—C6—H6 | 120.00 |
C1—N1—H1C | 107.5 (13) | C1—C6—H6 | 120.00 |
C1—N1—H1A | 111.4 (13) | C9—C7—H7A | 109.00 |
C4—N2—H21 | 101.6 (13) | N2—C7—H7A | 109.00 |
C7—N2—H21 | 112.0 (14) | N2—C7—H7B | 109.00 |
C8—N2—H21 | 106.1 (13) | C9—C7—H7B | 109.00 |
O2—N4—O3 | 120.47 (17) | H7A—C7—H7B | 108.00 |
O1—N4—O3 | 119.57 (18) | N2—C8—H8B | 109.00 |
O1—N4—O2 | 119.96 (17) | N2—C8—H8A | 109.00 |
O4—N3—O5 | 117.3 (2) | C10—C8—H8B | 109.00 |
O5—N3—O6 | 117.5 (2) | H8A—C8—H8B | 108.00 |
O4—N3—O6 | 125.2 (2) | C10—C8—H8A | 109.00 |
C2—C1—C6 | 120.92 (18) | H9A—C9—H9B | 109.00 |
N1—C1—C6 | 119.10 (17) | H9A—C9—H9C | 109.00 |
N1—C1—C2 | 119.98 (17) | C7—C9—H9A | 110.00 |
C1—C2—C3 | 119.36 (19) | C7—C9—H9B | 109.00 |
C2—C3—C4 | 119.44 (19) | C7—C9—H9C | 110.00 |
N2—C4—C3 | 119.10 (17) | H9B—C9—H9C | 109.00 |
C3—C4—C5 | 121.52 (18) | H10B—C10—H10C | 109.00 |
N2—C4—C5 | 119.37 (17) | C8—C10—H10A | 109.00 |
C4—C5—C6 | 118.90 (19) | C8—C10—H10B | 109.00 |
C1—C6—C5 | 119.86 (19) | C8—C10—H10C | 109.00 |
N2—C7—C9 | 112.6 (2) | H10A—C10—H10B | 109.00 |
N2—C8—C10 | 112.8 (2) | H10A—C10—H10C | 110.00 |
C7—N2—C4—C3 | −113.1 (2) | C6—C1—C2—C3 | 0.5 (3) |
C7—N2—C4—C5 | 67.5 (3) | N1—C1—C6—C5 | 179.57 (19) |
C8—N2—C4—C3 | 120.0 (2) | C2—C1—C6—C5 | −0.3 (3) |
C8—N2—C4—C5 | −59.5 (2) | C1—C2—C3—C4 | −0.4 (3) |
C4—N2—C7—C9 | 57.5 (3) | C2—C3—C4—N2 | −179.28 (19) |
C8—N2—C7—C9 | −174.8 (2) | C2—C3—C4—C5 | 0.2 (3) |
C4—N2—C8—C10 | −56.5 (3) | N2—C4—C5—C6 | 179.47 (19) |
C7—N2—C8—C10 | 176.1 (2) | C3—C4—C5—C6 | 0.0 (3) |
N1—C1—C2—C3 | −179.37 (19) | C4—C5—C6—C1 | 0.0 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O5 | 0.90 (2) | 1.84 (2) | 2.731 (3) | 178 (2) |
N1—H1B···O5i | 0.89 (2) | 1.92 (2) | 2.803 (3) | 175 (2) |
N1—H1C···O3ii | 0.89 (2) | 1.99 (2) | 2.855 (3) | 165 (2) |
N2—H21···O1 | 0.87 (2) | 2.08 (2) | 2.930 (3) | 167 (2) |
N2—H21···O2 | 0.87 (2) | 2.60 (2) | 3.198 (3) | 127 (2) |
C2—H2···O2iii | 0.93 | 2.47 | 3.216 (4) | 137 |
C3—H3···O1 | 0.93 | 2.46 | 3.236 (4) | 141 |
C5—H5···O3iv | 0.93 | 2.57 | 3.467 (4) | 161 |
C8—H8A···O3iv | 0.97 | 2.59 | 3.552 (4) | 173 |
Symmetry codes: (i) −x+1, −y+1/2, z−1/2; (ii) x−1/4, −y+1/4, z+3/4; (iii) −x+5/4, y+1/4, z+1/4; (iv) −x+5/4, y−1/4, z+3/4. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O5 | 0.897 (15) | 1.835 (15) | 2.731 (3) | 177.9 (16) |
N1—H1B···O5i | 0.889 (17) | 1.917 (17) | 2.803 (3) | 174.8 (19) |
N1—H1C···O3ii | 0.886 (17) | 1.989 (17) | 2.855 (3) | 165 (2) |
N2—H21···O1 | 0.87 (2) | 2.08 (2) | 2.930 (3) | 167 (2) |
N2—H21···O2 | 0.87 (2) | 2.60 (2) | 3.198 (3) | 127.3 (15) |
C2—H2···O2iii | 0.93 | 2.47 | 3.216 (4) | 137 |
C3—H3···O1 | 0.93 | 2.46 | 3.236 (4) | 141 |
C5—H5···O3iv | 0.93 | 2.57 | 3.467 (4) | 161 |
C8—H8A···O3iv | 0.97 | 2.59 | 3.552 (4) | 173 |
Symmetry codes: (i) −x+1, −y+1/2, z−1/2; (ii) x−1/4, −y+1/4, z+3/4; (iii) −x+5/4, y+1/4, z+1/4; (iv) −x+5/4, y−1/4, z+3/4. |
Acknowledgements
The authors acknowledge the Algerian Ministry of Higher Education and Scientific Research and the Algerian Directorate General for Scientific Research for financial support. They also acknowledge the support of URCHEMS and Queensland University of Technology.
References
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In the Cambridge Structural Database (CSD, V5.35, last update May 2014; Allen, 2002), only one structure with the title dicationic species 4-(N,N-diethylamino)aniline (DEAA2+) as a counter-ion is found, in the complex (DEAA2+)2 [PbCl6]4- hydrate (Dobrzycki & Woźniak, 2008). Complexes with the analogous 4-(N,N-diethylamino)-2-methylaniline dication as a counter-ion are also known, e.g. with [CuCl4]2- (Dobrzycki & Woźniak, 2008) and with [Ag2Br6]4- and [Ag2I6]4- (Bringley et al., 2005).
In the title compound, Fig. 1, the two ethyl groups lie almost perpendicular to the plane of the benzene ring [C5—C4—N2—C7/C8 torsion angles are 67.5 (3) and -59.5 (2)°], respectively, which is similar to the conformation assumed by these groups in the structures of the analogous dications in all of the prevously mentioned complex structures.
In the crystal of the title salt, all the aminium groups of the cation form inter-species N—H···O hydrogen bonds with the nitro O-atoms of both anions (Table 1), which includes an asymmetric three-centre R21(4) association with the tertiary aminium group (N2) and O1 and O2 (Table 1). One-dimensional chains are formed along c (Fig. 2) and are further extended into a two-dimensional network lying parallel to (010). Weak C—H···O hydrogen-bonding associations are also present in an overall three-dimensional structure (Fig. 3), in which nitrate O-atoms O4 and O6 are not involved in any interactions.