organic compounds
Hexane-1,6-diaminium bis[3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate] methanol disolvate
aDepartment of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: ljwfu@163.com
In the title compound, C6H18N22+·2C9H3Br4O4−·2CH4O, the carboxylate and methoxycarbonyl groups in one of the anions form dihedral angles of 71.9 (3) and 60.7 (3)°, respectively, with the aromatic ring while in the other anion these angles are 68.4 (3) and 56.8 (3)°, respectively. In the crystal, the constituent units are linked into a two-dimensional network parallel to the ab plane by N—H⋯O and O—H⋯O hydrogen bonds.
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536811035537/ci5198sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811035537/ci5198Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811035537/ci5198Isup3.cml
A mixture of 4,5,6,7-tetrabromoisobenzofuran-1,3-dione (4.64 g, 0.01 mol) and methanol (15 ml) was refluxed for 30 min. Then hexane-1,6-diamine (0.58 g, 0.005 mol) was added to the above solution and mixed for 30 min at room temperature. After filtration, the solution was kept at room temperature for 5 d. Natural evaporation gave colourless single crystals of the title compound, suitable for X-ray analysis.
H atoms were initially located in a difference map and then refined in a riding model, with C–H = 0.96–0.97 Å, N–H = 0.89 Å, O–H = 0.82Å and Uiso(H) = 1.2Ueq(C) and 1.5Ueq(O, N, methyl C).
4,5,6,7-Tetrabromo-2-ethylisoindoline-1,3-dione is an important flame retardant. 3,4,5,6-Tetrabromo-2-(methoxycarbonyl)benzoic acid is an intermediate in the synthesis of this flame retardant. In this paper, the structure of the title compound, (I), is reported.
The
of (I) contains one hexane-1,6-diaminium cation, two 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate anions and two methanol solvent molecules (Fig. 1). The dihedral angles formed by the aromatic ring and the mean planes of the carboxylate and methoxycarbonyl groups are 71.9 (3)° and 60.7 (3)°, respectively, in one of the anions [with Br1], and 68.4 (3)° and 56.8 (3)°, respectively, in the other anion [with Br5]. The bond lengths and angles are in agreement with those observed for ethylammonium 2-(methoxycarbonyl)-3,4,5,6-tetrabromobenzoate methanol solvate (Li, 2011a), 2-methylanilinium 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate methanol monosolvate (Li, 2011b) and propan-1-aminium 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate N,N-dimethylformamide monosolvate (Li, 2011c). The is stabilized by N—H···O and O—H···O hydrogen bonds (see Fig. 2 and Table 1).For related structures, see: Li (2011a,b,c).
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), showing 30% probability displacement ellipsoids. | |
Fig. 2. Part of the crystal structure of (I). Hydrogen bonds are shown as dashed lines. |
C6H18N22+·2C9H3Br4O4−·2CH4O | Z = 2 |
Mr = 1171.74 | F(000) = 1124 |
Triclinic, P1 | Dx = 2.014 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.1030 (6) Å | Cell parameters from 2038 reflections |
b = 13.5209 (12) Å | θ = 2.3–22.4° |
c = 17.7536 (17) Å | µ = 8.35 mm−1 |
α = 89.388 (2)° | T = 298 K |
β = 83.744 (1)° | Block, colourless |
γ = 88.210 (2)° | 0.27 × 0.26 × 0.25 mm |
V = 1932.5 (3) Å3 |
Bruker SMART CCD area-detector diffractometer | 6753 independent reflections |
Radiation source: fine-focus sealed tube | 2917 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.072 |
φ and ω scans | θmax = 25.0°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | h = −9→9 |
Tmin = 0.211, Tmax = 0.229 | k = −14→16 |
10205 measured reflections | l = −21→18 |
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)] = 0.067 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.158 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0483P)2] where P = (Fo2 + 2Fc2)/3 |
6753 reflections | (Δ/σ)max = 0.001 |
421 parameters | Δρmax = 0.98 e Å−3 |
0 restraints | Δρmin = −0.91 e Å−3 |
C6H18N22+·2C9H3Br4O4−·2CH4O | γ = 88.210 (2)° |
Mr = 1171.74 | V = 1932.5 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.1030 (6) Å | Mo Kα radiation |
b = 13.5209 (12) Å | µ = 8.35 mm−1 |
c = 17.7536 (17) Å | T = 298 K |
α = 89.388 (2)° | 0.27 × 0.26 × 0.25 mm |
β = 83.744 (1)° |
Bruker SMART CCD area-detector diffractometer | 6753 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | 2917 reflections with I > 2σ(I) |
Tmin = 0.211, Tmax = 0.229 | Rint = 0.072 |
10205 measured reflections |
R[F2 > 2σ(F2)] = 0.067 | 0 restraints |
wR(F2) = 0.158 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.98 e Å−3 |
6753 reflections | Δρmin = −0.91 e Å−3 |
421 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
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 | ||
Br1 | 0.31418 (12) | 0.68365 (7) | 0.41728 (5) | 0.0652 (3) | |
Br2 | 0.39769 (12) | 0.92318 (6) | 0.39517 (6) | 0.0725 (3) | |
Br3 | 0.56132 (12) | 1.00591 (6) | 0.22691 (6) | 0.0648 (3) | |
Br4 | 0.66925 (12) | 0.84716 (6) | 0.08825 (5) | 0.0645 (3) | |
Br5 | 1.15592 (12) | 0.85386 (7) | 0.58275 (5) | 0.0659 (3) | |
Br6 | 1.09419 (14) | 1.09575 (7) | 0.60733 (6) | 0.0837 (4) | |
Br7 | 0.94500 (13) | 1.18227 (6) | 0.77544 (7) | 0.0795 (4) | |
Br8 | 0.83327 (14) | 1.02581 (7) | 0.91531 (6) | 0.0863 (4) | |
N1 | 0.8619 (7) | 0.5131 (4) | 0.2862 (4) | 0.051 (2) | |
H1A | 0.9149 | 0.4572 | 0.2974 | 0.077* | |
H1B | 0.9019 | 0.5339 | 0.2403 | 0.077* | |
H1C | 0.7540 | 0.5024 | 0.2869 | 0.077* | |
N2 | 0.6252 (7) | 0.6898 (4) | 0.7155 (3) | 0.048 (2) | |
H2A | 0.6007 | 0.6274 | 0.7072 | 0.073* | |
H2B | 0.5777 | 0.7084 | 0.7609 | 0.073* | |
H2C | 0.7349 | 0.6946 | 0.7138 | 0.073* | |
O1 | 0.6599 (6) | 0.5577 (4) | 0.1436 (3) | 0.0552 (17) | |
O2 | 0.4895 (8) | 0.6342 (4) | 0.0704 (3) | 0.070 (2) | |
O3 | 0.2985 (7) | 0.5302 (4) | 0.2362 (4) | 0.070 (2) | |
O4 | 0.5040 (6) | 0.5022 (3) | 0.3069 (3) | 0.0534 (18) | |
O5 | 0.8163 (6) | 0.7345 (4) | 0.8560 (3) | 0.0537 (17) | |
O6 | 0.9820 (7) | 0.8025 (4) | 0.9332 (3) | 0.075 (2) | |
O7 | 1.1766 (7) | 0.6946 (4) | 0.7680 (3) | 0.0629 (19) | |
O8 | 0.9799 (6) | 0.6778 (4) | 0.6910 (3) | 0.0542 (17) | |
O9 | 0.5822 (6) | 0.2186 (4) | 0.1606 (3) | 0.067 (2) | |
H9 | 0.6672 | 0.2439 | 0.1713 | 0.080* | |
O10 | 0.0507 (7) | 0.6040 (4) | 0.1616 (3) | 0.072 (2) | |
H10 | 0.1438 | 0.5914 | 0.1739 | 0.108* | |
C1 | 0.5540 (9) | 0.6306 (5) | 0.1263 (4) | 0.037 (2) | |
C2 | 0.4161 (9) | 0.5569 (5) | 0.2704 (5) | 0.045 (3) | |
C3 | 0.5241 (9) | 0.7015 (5) | 0.1919 (4) | 0.038 (2) | |
C4 | 0.4548 (8) | 0.6664 (5) | 0.2630 (4) | 0.038 (2) | |
C5 | 0.4174 (8) | 0.7333 (5) | 0.3239 (4) | 0.038 (2) | |
C6 | 0.4523 (9) | 0.8354 (6) | 0.3122 (5) | 0.051 (3) | |
C7 | 0.5224 (9) | 0.8691 (5) | 0.2419 (4) | 0.038 (2) | |
C8 | 0.5601 (8) | 0.8039 (5) | 0.1809 (4) | 0.039 (2) | |
C9 | 0.6836 (11) | 0.4745 (6) | 0.0914 (5) | 0.071 (3) | |
H9A | 0.5777 | 0.4547 | 0.0783 | 0.106* | |
H9B | 0.7371 | 0.4201 | 0.1152 | 0.106* | |
H9C | 0.7517 | 0.4940 | 0.0464 | 0.106* | |
C10 | 0.9168 (10) | 0.8012 (6) | 0.8732 (5) | 0.047 (3) | |
C11 | 1.0597 (9) | 0.7266 (6) | 0.7303 (5) | 0.042 (2) | |
C12 | 0.9534 (9) | 0.8749 (5) | 0.8095 (5) | 0.044 (2) | |
C13 | 1.0192 (9) | 0.8369 (5) | 0.7381 (5) | 0.045 (2) | |
C14 | 1.0600 (9) | 0.9033 (5) | 0.6794 (5) | 0.044 (2) | |
C15 | 1.0332 (9) | 1.0083 (6) | 0.6896 (5) | 0.051 (3) | |
C16 | 0.9686 (9) | 1.0448 (5) | 0.7606 (5) | 0.048 (3) | |
C17 | 0.9298 (9) | 0.9776 (6) | 0.8195 (5) | 0.053 (3) | |
C18 | 0.7876 (11) | 0.6499 (6) | 0.9077 (5) | 0.075 (3) | |
H18A | 0.8913 | 0.6266 | 0.9239 | 0.113* | |
H18B | 0.7392 | 0.5977 | 0.8821 | 0.113* | |
H18C | 0.7134 | 0.6699 | 0.9511 | 0.113* | |
C19 | 0.8868 (11) | 0.5894 (6) | 0.3427 (5) | 0.069 (3) | |
H19A | 0.8418 | 0.6523 | 0.3260 | 0.083* | |
H19B | 1.0051 | 0.5965 | 0.3443 | 0.083* | |
C20 | 0.8082 (12) | 0.5679 (6) | 0.4215 (5) | 0.071 (3) | |
H20A | 0.8753 | 0.5181 | 0.4449 | 0.086* | |
H20B | 0.6991 | 0.5414 | 0.4190 | 0.086* | |
C21 | 0.7920 (12) | 0.6598 (7) | 0.4695 (5) | 0.086 (4) | |
H21A | 0.9026 | 0.6811 | 0.4762 | 0.103* | |
H21B | 0.7386 | 0.7118 | 0.4420 | 0.103* | |
C22 | 0.6969 (11) | 0.6493 (6) | 0.5457 (5) | 0.057 (3) | |
H22A | 0.7596 | 0.6076 | 0.5778 | 0.069* | |
H22B | 0.5921 | 0.6184 | 0.5410 | 0.069* | |
C23 | 0.6647 (11) | 0.7515 (6) | 0.5812 (5) | 0.067 (3) | |
H23A | 0.7711 | 0.7801 | 0.5866 | 0.081* | |
H23B | 0.6098 | 0.7933 | 0.5462 | 0.081* | |
C24 | 0.5626 (11) | 0.7548 (6) | 0.6564 (5) | 0.069 (3) | |
H24A | 0.5567 | 0.8224 | 0.6745 | 0.082* | |
H24B | 0.4505 | 0.7362 | 0.6497 | 0.082* | |
C25 | 0.6029 (12) | 0.1902 (7) | 0.0842 (5) | 0.079 (3) | |
H25A | 0.6090 | 0.2481 | 0.0524 | 0.119* | |
H25B | 0.5102 | 0.1521 | 0.0736 | 0.119* | |
H25C | 0.7035 | 0.1509 | 0.0744 | 0.119* | |
C26 | 0.0639 (12) | 0.6378 (7) | 0.0859 (5) | 0.088 (4) | |
H26A | −0.0277 | 0.6825 | 0.0790 | 0.132* | |
H26B | 0.0623 | 0.5825 | 0.0526 | 0.132* | |
H26C | 0.1662 | 0.6716 | 0.0745 | 0.132* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0801 (6) | 0.0632 (6) | 0.0488 (6) | −0.0097 (5) | 0.0118 (5) | −0.0028 (5) |
Br2 | 0.0917 (7) | 0.0543 (5) | 0.0676 (7) | −0.0064 (5) | 0.0128 (6) | −0.0280 (5) |
Br3 | 0.0832 (6) | 0.0289 (5) | 0.0810 (8) | −0.0096 (4) | −0.0008 (6) | −0.0082 (4) |
Br4 | 0.0886 (7) | 0.0470 (5) | 0.0542 (6) | −0.0124 (5) | 0.0119 (6) | 0.0021 (4) |
Br5 | 0.0803 (6) | 0.0675 (6) | 0.0459 (6) | −0.0036 (5) | 0.0112 (5) | −0.0003 (5) |
Br6 | 0.1021 (8) | 0.0542 (6) | 0.0913 (8) | −0.0069 (6) | 0.0031 (7) | 0.0319 (5) |
Br7 | 0.0937 (7) | 0.0275 (5) | 0.1189 (10) | 0.0053 (5) | −0.0199 (7) | −0.0075 (5) |
Br8 | 0.1153 (8) | 0.0667 (6) | 0.0716 (8) | 0.0067 (6) | 0.0141 (7) | −0.0274 (5) |
N1 | 0.059 (4) | 0.035 (4) | 0.057 (5) | −0.004 (3) | 0.007 (4) | 0.000 (3) |
N2 | 0.065 (4) | 0.034 (4) | 0.047 (5) | −0.006 (3) | −0.003 (4) | −0.009 (3) |
O1 | 0.068 (4) | 0.041 (3) | 0.053 (4) | 0.008 (3) | 0.010 (3) | −0.017 (3) |
O2 | 0.115 (5) | 0.052 (3) | 0.048 (4) | 0.017 (3) | −0.027 (4) | −0.018 (3) |
O3 | 0.065 (4) | 0.058 (4) | 0.091 (5) | −0.011 (3) | −0.031 (4) | 0.016 (3) |
O4 | 0.063 (4) | 0.029 (3) | 0.066 (4) | −0.004 (3) | 0.003 (3) | 0.003 (3) |
O5 | 0.062 (3) | 0.045 (3) | 0.054 (4) | −0.019 (3) | −0.006 (3) | 0.004 (3) |
O6 | 0.099 (5) | 0.082 (4) | 0.050 (4) | −0.035 (4) | −0.022 (4) | 0.009 (3) |
O7 | 0.073 (4) | 0.039 (3) | 0.079 (5) | 0.002 (3) | −0.018 (4) | −0.012 (3) |
O8 | 0.069 (4) | 0.039 (3) | 0.054 (4) | −0.006 (3) | −0.005 (3) | −0.013 (3) |
O9 | 0.066 (4) | 0.060 (4) | 0.074 (5) | −0.017 (3) | 0.001 (4) | −0.017 (3) |
O10 | 0.066 (4) | 0.081 (4) | 0.068 (5) | 0.004 (3) | −0.001 (4) | 0.022 (3) |
C1 | 0.045 (5) | 0.036 (4) | 0.029 (5) | 0.003 (4) | 0.001 (4) | −0.014 (4) |
C2 | 0.032 (5) | 0.033 (5) | 0.071 (7) | 0.006 (4) | −0.014 (5) | 0.002 (4) |
C3 | 0.043 (5) | 0.030 (4) | 0.043 (5) | −0.001 (4) | −0.009 (4) | −0.007 (4) |
C4 | 0.035 (4) | 0.041 (4) | 0.037 (5) | 0.004 (4) | −0.006 (4) | −0.007 (4) |
C5 | 0.020 (4) | 0.046 (5) | 0.048 (6) | 0.002 (4) | −0.007 (4) | −0.002 (4) |
C6 | 0.048 (5) | 0.042 (5) | 0.063 (6) | 0.002 (4) | −0.010 (5) | −0.022 (4) |
C7 | 0.039 (4) | 0.031 (4) | 0.043 (6) | −0.001 (4) | −0.007 (4) | −0.003 (4) |
C8 | 0.033 (4) | 0.036 (4) | 0.047 (6) | 0.001 (4) | −0.004 (4) | −0.003 (4) |
C9 | 0.110 (7) | 0.039 (5) | 0.061 (7) | 0.008 (5) | −0.004 (6) | −0.009 (5) |
C10 | 0.068 (6) | 0.053 (5) | 0.022 (5) | 0.010 (5) | −0.010 (5) | −0.003 (4) |
C11 | 0.043 (5) | 0.047 (5) | 0.036 (5) | −0.014 (4) | −0.002 (4) | −0.018 (4) |
C12 | 0.046 (5) | 0.041 (5) | 0.044 (6) | 0.000 (4) | −0.004 (4) | −0.004 (4) |
C13 | 0.048 (5) | 0.029 (4) | 0.054 (6) | 0.003 (4) | 0.003 (5) | 0.008 (4) |
C14 | 0.049 (5) | 0.037 (5) | 0.044 (6) | −0.003 (4) | 0.008 (4) | −0.001 (4) |
C15 | 0.051 (5) | 0.039 (5) | 0.061 (6) | −0.008 (4) | 0.003 (5) | 0.013 (4) |
C16 | 0.043 (5) | 0.031 (4) | 0.070 (7) | 0.003 (4) | −0.015 (5) | −0.011 (4) |
C17 | 0.027 (4) | 0.044 (5) | 0.085 (7) | 0.000 (4) | 0.009 (5) | 0.002 (5) |
C18 | 0.084 (7) | 0.075 (7) | 0.064 (7) | −0.020 (6) | 0.011 (6) | 0.018 (5) |
C19 | 0.095 (7) | 0.045 (5) | 0.064 (7) | −0.020 (5) | 0.010 (6) | −0.019 (5) |
C20 | 0.129 (8) | 0.047 (5) | 0.036 (6) | −0.027 (5) | 0.007 (6) | −0.006 (4) |
C21 | 0.096 (7) | 0.091 (7) | 0.068 (8) | −0.012 (6) | 0.007 (6) | −0.023 (6) |
C22 | 0.073 (6) | 0.065 (6) | 0.036 (6) | −0.004 (5) | −0.016 (5) | −0.002 (4) |
C23 | 0.086 (7) | 0.063 (6) | 0.052 (7) | 0.015 (5) | −0.015 (6) | −0.002 (5) |
C24 | 0.094 (7) | 0.056 (6) | 0.054 (7) | 0.019 (5) | −0.006 (6) | 0.007 (5) |
C25 | 0.121 (8) | 0.086 (7) | 0.029 (6) | −0.009 (6) | 0.008 (6) | −0.016 (5) |
C26 | 0.099 (8) | 0.095 (8) | 0.065 (8) | 0.019 (6) | 0.014 (7) | −0.017 (6) |
Br1—C5 | 1.900 (7) | C9—H9A | 0.96 |
Br2—C6 | 1.907 (8) | C9—H9B | 0.96 |
Br3—C7 | 1.897 (7) | C9—H9C | 0.96 |
Br4—C8 | 1.878 (8) | C10—C12 | 1.510 (11) |
Br5—C14 | 1.923 (8) | C11—C13 | 1.522 (10) |
Br6—C15 | 1.902 (8) | C12—C17 | 1.406 (10) |
Br7—C16 | 1.881 (7) | C12—C13 | 1.417 (10) |
Br8—C17 | 1.906 (9) | C13—C14 | 1.387 (10) |
N1—C19 | 1.480 (10) | C14—C15 | 1.439 (10) |
N1—H1A | 0.89 | C15—C16 | 1.401 (11) |
N1—H1B | 0.89 | C16—C17 | 1.394 (11) |
N1—H1C | 0.89 | C18—H18A | 0.96 |
N2—C24 | 1.482 (10) | C18—H18B | 0.96 |
N2—H2A | 0.89 | C18—H18C | 0.96 |
N2—H2B | 0.89 | C19—C20 | 1.502 (11) |
N2—H2C | 0.89 | C19—H19A | 0.97 |
O1—C1 | 1.342 (8) | C19—H19B | 0.97 |
O1—C9 | 1.460 (9) | C20—C21 | 1.509 (12) |
O2—C1 | 1.170 (9) | C20—H20A | 0.97 |
O3—C2 | 1.247 (9) | C20—H20B | 0.97 |
O4—C2 | 1.238 (9) | C21—C22 | 1.489 (11) |
O5—C10 | 1.294 (9) | C21—H21A | 0.97 |
O5—C18 | 1.468 (10) | C21—H21B | 0.97 |
O6—C10 | 1.241 (9) | C22—C23 | 1.529 (11) |
O7—C11 | 1.281 (9) | C22—H22A | 0.97 |
O8—C11 | 1.214 (9) | C22—H22B | 0.97 |
O9—C25 | 1.404 (9) | C23—C24 | 1.494 (11) |
O9—H9 | 0.82 | C23—H23A | 0.97 |
O10—C26 | 1.409 (11) | C23—H23B | 0.97 |
O10—H10 | 0.82 | C24—H24A | 0.97 |
C1—C3 | 1.510 (10) | C24—H24B | 0.97 |
C2—C4 | 1.525 (10) | C25—H25A | 0.96 |
C3—C4 | 1.408 (10) | C25—H25B | 0.96 |
C3—C8 | 1.432 (10) | C25—H25C | 0.96 |
C4—C5 | 1.418 (10) | C26—H26A | 0.96 |
C5—C6 | 1.426 (10) | C26—H26B | 0.96 |
C6—C7 | 1.392 (11) | C26—H26C | 0.96 |
C7—C8 | 1.404 (10) | ||
C19—N1—H1A | 109.5 | C16—C15—Br6 | 120.9 (6) |
C19—N1—H1B | 109.5 | C14—C15—Br6 | 119.5 (6) |
H1A—N1—H1B | 109.5 | C17—C16—C15 | 118.6 (7) |
C19—N1—H1C | 109.5 | C17—C16—Br7 | 121.7 (6) |
H1A—N1—H1C | 109.5 | C15—C16—Br7 | 119.6 (6) |
H1B—N1—H1C | 109.5 | C16—C17—C12 | 122.0 (8) |
C24—N2—H2A | 109.5 | C16—C17—Br8 | 119.1 (6) |
C24—N2—H2B | 109.5 | C12—C17—Br8 | 118.9 (6) |
H2A—N2—H2B | 109.5 | O5—C18—H18A | 109.5 |
C24—N2—H2C | 109.5 | O5—C18—H18B | 109.5 |
H2A—N2—H2C | 109.5 | H18A—C18—H18B | 109.5 |
H2B—N2—H2C | 109.5 | O5—C18—H18C | 109.5 |
C1—O1—C9 | 116.6 (6) | H18A—C18—H18C | 109.5 |
C10—O5—C18 | 118.2 (7) | H18B—C18—H18C | 109.5 |
C25—O9—H9 | 109.5 | N1—C19—C20 | 114.6 (7) |
C26—O10—H10 | 109.5 | N1—C19—H19A | 108.6 |
O2—C1—O1 | 124.2 (7) | C20—C19—H19A | 108.6 |
O2—C1—C3 | 126.4 (7) | N1—C19—H19B | 108.6 |
O1—C1—C3 | 109.2 (7) | C20—C19—H19B | 108.6 |
O4—C2—O3 | 125.8 (7) | H19A—C19—H19B | 107.6 |
O4—C2—C4 | 118.7 (7) | C19—C20—C21 | 111.4 (7) |
O3—C2—C4 | 115.4 (7) | C19—C20—H20A | 109.3 |
C4—C3—C8 | 120.5 (7) | C21—C20—H20A | 109.3 |
C4—C3—C1 | 119.3 (6) | C19—C20—H20B | 109.3 |
C8—C3—C1 | 120.1 (7) | C21—C20—H20B | 109.3 |
C3—C4—C5 | 119.8 (7) | H20A—C20—H20B | 108.0 |
C3—C4—C2 | 117.8 (6) | C22—C21—C20 | 115.7 (8) |
C5—C4—C2 | 122.3 (7) | C22—C21—H21A | 108.4 |
C4—C5—C6 | 119.2 (7) | C20—C21—H21A | 108.4 |
C4—C5—Br1 | 118.3 (5) | C22—C21—H21B | 108.4 |
C6—C5—Br1 | 122.5 (6) | C20—C21—H21B | 108.4 |
C7—C6—C5 | 120.5 (7) | H21A—C21—H21B | 107.4 |
C7—C6—Br2 | 121.6 (6) | C21—C22—C23 | 109.3 (7) |
C5—C6—Br2 | 117.9 (6) | C21—C22—H22A | 109.8 |
C6—C7—C8 | 121.1 (7) | C23—C22—H22A | 109.8 |
C6—C7—Br3 | 119.6 (5) | C21—C22—H22B | 109.8 |
C8—C7—Br3 | 119.3 (6) | C23—C22—H22B | 109.8 |
C7—C8—C3 | 118.9 (7) | H22A—C22—H22B | 108.3 |
C7—C8—Br4 | 121.2 (5) | C24—C23—C22 | 116.2 (7) |
C3—C8—Br4 | 119.8 (5) | C24—C23—H23A | 108.2 |
O1—C9—H9A | 109.5 | C22—C23—H23A | 108.2 |
O1—C9—H9B | 109.5 | C24—C23—H23B | 108.2 |
H9A—C9—H9B | 109.5 | C22—C23—H23B | 108.2 |
O1—C9—H9C | 109.5 | H23A—C23—H23B | 107.4 |
H9A—C9—H9C | 109.5 | N2—C24—C23 | 114.9 (7) |
H9B—C9—H9C | 109.5 | N2—C24—H24A | 108.5 |
O6—C10—O5 | 124.5 (7) | C23—C24—H24A | 108.5 |
O6—C10—C12 | 123.5 (8) | N2—C24—H24B | 108.5 |
O5—C10—C12 | 111.9 (7) | C23—C24—H24B | 108.5 |
O8—C11—O7 | 126.5 (7) | H24A—C24—H24B | 107.5 |
O8—C11—C13 | 118.8 (7) | O9—C25—H25A | 109.5 |
O7—C11—C13 | 114.7 (7) | O9—C25—H25B | 109.5 |
C17—C12—C13 | 120.0 (7) | H25A—C25—H25B | 109.5 |
C17—C12—C10 | 122.7 (7) | O9—C25—H25C | 109.5 |
C13—C12—C10 | 117.3 (6) | H25A—C25—H25C | 109.5 |
C14—C13—C12 | 118.4 (7) | H25B—C25—H25C | 109.5 |
C14—C13—C11 | 122.0 (7) | O10—C26—H26A | 109.5 |
C12—C13—C11 | 119.2 (7) | O10—C26—H26B | 109.5 |
C13—C14—C15 | 121.4 (7) | H26A—C26—H26B | 109.5 |
C13—C14—Br5 | 119.2 (5) | O10—C26—H26C | 109.5 |
C15—C14—Br5 | 119.4 (6) | H26A—C26—H26C | 109.5 |
C16—C15—C14 | 119.6 (7) | H26B—C26—H26C | 109.5 |
C9—O1—C1—O2 | −5.1 (11) | O5—C10—C12—C17 | 125.7 (8) |
C9—O1—C1—C3 | 171.0 (6) | O6—C10—C12—C13 | 120.5 (9) |
O2—C1—C3—C4 | 115.6 (9) | O5—C10—C12—C13 | −56.4 (9) |
O1—C1—C3—C4 | −60.4 (9) | C17—C12—C13—C14 | 0.4 (12) |
O2—C1—C3—C8 | −62.0 (11) | C10—C12—C13—C14 | −177.5 (7) |
O1—C1—C3—C8 | 122.0 (7) | C17—C12—C13—C11 | 174.1 (7) |
C8—C3—C4—C5 | 1.2 (11) | C10—C12—C13—C11 | −3.9 (11) |
C1—C3—C4—C5 | −176.4 (7) | O8—C11—C13—C14 | −72.6 (10) |
C8—C3—C4—C2 | 178.7 (7) | O7—C11—C13—C14 | 108.3 (9) |
C1—C3—C4—C2 | 1.1 (10) | O8—C11—C13—C12 | 114.0 (9) |
O4—C2—C4—C3 | 108.4 (9) | O7—C11—C13—C12 | −65.1 (9) |
O3—C2—C4—C3 | −69.7 (9) | C12—C13—C14—C15 | −1.5 (12) |
O4—C2—C4—C5 | −74.1 (10) | C11—C13—C14—C15 | −174.9 (7) |
O3—C2—C4—C5 | 107.8 (9) | C12—C13—C14—Br5 | 178.1 (6) |
C3—C4—C5—C6 | −0.6 (11) | C11—C13—C14—Br5 | 4.7 (11) |
C2—C4—C5—C6 | −178.0 (7) | C13—C14—C15—C16 | 1.7 (12) |
C3—C4—C5—Br1 | 177.0 (5) | Br5—C14—C15—C16 | −177.8 (6) |
C2—C4—C5—Br1 | −0.4 (9) | C13—C14—C15—Br6 | 179.2 (6) |
C4—C5—C6—C7 | −0.1 (11) | Br5—C14—C15—Br6 | −0.3 (9) |
Br1—C5—C6—C7 | −177.6 (6) | C14—C15—C16—C17 | −0.9 (12) |
C4—C5—C6—Br2 | 179.3 (5) | Br6—C15—C16—C17 | −178.4 (6) |
Br1—C5—C6—Br2 | 1.8 (9) | C14—C15—C16—Br7 | 176.5 (6) |
C5—C6—C7—C8 | 0.2 (12) | Br6—C15—C16—Br7 | −1.0 (9) |
Br2—C6—C7—C8 | −179.2 (6) | C15—C16—C17—C12 | −0.1 (12) |
C5—C6—C7—Br3 | 178.1 (5) | Br7—C16—C17—C12 | −177.4 (6) |
Br2—C6—C7—Br3 | −1.3 (9) | C15—C16—C17—Br8 | −177.4 (6) |
C6—C7—C8—C3 | 0.4 (11) | Br7—C16—C17—Br8 | 5.3 (9) |
Br3—C7—C8—C3 | −177.5 (5) | C13—C12—C17—C16 | 0.4 (12) |
C6—C7—C8—Br4 | −175.4 (6) | C10—C12—C17—C16 | 178.2 (8) |
Br3—C7—C8—Br4 | 6.7 (9) | C13—C12—C17—Br8 | 177.7 (6) |
C4—C3—C8—C7 | −1.1 (11) | C10—C12—C17—Br8 | −4.5 (10) |
C1—C3—C8—C7 | 176.5 (7) | N1—C19—C20—C21 | −162.4 (8) |
C4—C3—C8—Br4 | 174.8 (6) | C19—C20—C21—C22 | 172.8 (8) |
C1—C3—C8—Br4 | −7.6 (10) | C20—C21—C22—C23 | −169.9 (8) |
C18—O5—C10—O6 | −5.4 (11) | C21—C22—C23—C24 | 177.0 (8) |
C18—O5—C10—C12 | 171.5 (6) | C22—C23—C24—N2 | 54.7 (11) |
O6—C10—C12—C17 | −57.4 (11) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O8i | 0.89 | 2.01 | 2.890 (7) | 171 |
N1—H1B···O10ii | 0.89 | 1.99 | 2.840 (8) | 158 |
N1—H1C···O4 | 0.89 | 2.02 | 2.892 (8) | 167 |
N2—H2A···O4iii | 0.89 | 2.00 | 2.877 (7) | 168 |
N2—H2B···O9iii | 0.89 | 2.04 | 2.885 (8) | 159 |
N2—H2C···O8 | 0.89 | 1.99 | 2.859 (8) | 165 |
O9—H9···O7i | 0.82 | 1.96 | 2.743 (8) | 160 |
O10—H10···O3 | 0.82 | 1.92 | 2.685 (8) | 154 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1, y, z; (iii) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C6H18N22+·2C9H3Br4O4−·2CH4O |
Mr | 1171.74 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 8.1030 (6), 13.5209 (12), 17.7536 (17) |
α, β, γ (°) | 89.388 (2), 83.744 (1), 88.210 (2) |
V (Å3) | 1932.5 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 8.35 |
Crystal size (mm) | 0.27 × 0.26 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 1997) |
Tmin, Tmax | 0.211, 0.229 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10205, 6753, 2917 |
Rint | 0.072 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.067, 0.158, 1.04 |
No. of reflections | 6753 |
No. of parameters | 421 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.98, −0.91 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O8i | 0.89 | 2.01 | 2.890 (7) | 171 |
N1—H1B···O10ii | 0.89 | 1.99 | 2.840 (8) | 158 |
N1—H1C···O4 | 0.89 | 2.02 | 2.892 (8) | 167 |
N2—H2A···O4iii | 0.89 | 2.00 | 2.877 (7) | 168 |
N2—H2B···O9iii | 0.89 | 2.04 | 2.885 (8) | 159 |
N2—H2C···O8 | 0.89 | 1.99 | 2.859 (8) | 165 |
O9—H9···O7i | 0.82 | 1.96 | 2.743 (8) | 160 |
O10—H10···O3 | 0.82 | 1.92 | 2.685 (8) | 154 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1, y, z; (iii) −x+1, −y+1, −z+1. |
Acknowledgements
The author thanks Shandong Provincial Natural Science Foundation, China (ZR2009BL027) for support.
References
Bruker (1997). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Li, J. (2011a). Acta Cryst. E67, o200. Web of Science CrossRef IUCr Journals Google Scholar
Li, J. (2011b). Acta Cryst. E67, o900. Web of Science CSD CrossRef IUCr Journals Google Scholar
Li, J. (2011c). Acta Cryst. E67, o1356. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
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4,5,6,7-Tetrabromo-2-ethylisoindoline-1,3-dione is an important flame retardant. 3,4,5,6-Tetrabromo-2-(methoxycarbonyl)benzoic acid is an intermediate in the synthesis of this flame retardant. In this paper, the structure of the title compound, (I), is reported.
The asymmetric unit of (I) contains one hexane-1,6-diaminium cation, two 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate anions and two methanol solvent molecules (Fig. 1). The dihedral angles formed by the aromatic ring and the mean planes of the carboxylate and methoxycarbonyl groups are 71.9 (3)° and 60.7 (3)°, respectively, in one of the anions [with Br1], and 68.4 (3)° and 56.8 (3)°, respectively, in the other anion [with Br5]. The bond lengths and angles are in agreement with those observed for ethylammonium 2-(methoxycarbonyl)-3,4,5,6-tetrabromobenzoate methanol solvate (Li, 2011a), 2-methylanilinium 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate methanol monosolvate (Li, 2011b) and propan-1-aminium 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate N,N-dimethylformamide monosolvate (Li, 2011c). The crystal structure is stabilized by N—H···O and O—H···O hydrogen bonds (see Fig. 2 and Table 1).