organic compounds
Ethanaminium 3,4,5,6-tetrabromo-2-(methoxycarbonyl)benzoate methanol monosolvate
aDepartment of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: ljwfu@163.com
In the 2H8N+·C9H3Br4O4−·CH4O, intermolecular N—H⋯O and O—H⋯O hydrogen bonds link the components into chains along [001]. Additional stabilization is supplied by weak C—H⋯O and C—H⋯Br interactions.
of the title compound, CExperimental
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/S1600536810052591/lh5189sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810052591/lh5189Isup2.hkl
A mixture of 4,5,6,7-tetrabromoisobenzofuran-1,3-dione (4.64 g, 0.01 mol) and methanol (15 ml) was refluxed for 0.5 h. And then ethanamine (0.45 g, 0.01 mol) was added to the above solution, and mixed for 10 min at room temperature. The solution was kept at room temperature for 3 d. Natural evaporation gave colourless single crystals of the title compound, suitable for X-ray analysis.
H atoms were initially located from difference maps 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) or 1.5Ueq(O, N, methyl C).
4,5,6,7-Tetrabromo-2-ethylisoindoline-1,3-dione is an important flame retardant. 2-(Methoxycarbonyl)-3,4,5,6-tetrabromobenzoic acid is an intermediate in the sytnthesis of this flame retardant. In this paper, the structure of the title compound is reported. The
of the title compound (I) contains one ethanaminium cation, one 2-(methoxycarbonyl)-3,4,5,6-tetrabromobenzoate anion and one methanol solvent molecule (Fig. 1). The bond lengths and angles agree with those in ethane-1,2-diaminium 2-(methoxycarbonyl)-3,4,5,6-tetrabromo benzoate methanol solvate (Liang, 2008). In the intermolecular N—H···O and O—H···O hydrogen bonds link the components of the structure into one-dimensional chains along [001](see fig. 2). Additional stabilization is supplied by weak C—H···O and C—H···Br interactions.For a related structure, see: Liang (2008).
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 asymmetric unit of (I), drawn with 30% probability ellipsoids. | |
Fig. 2. The crystal packing of (I). Hydrogen bonds are indicated by dashed lines. |
C2H8N+·C9H3Br4O4−·CH4O | F(000) = 1096 |
Mr = 572.89 | Dx = 2.039 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1513 reflections |
a = 9.4651 (8) Å | θ = 2.3–20.6° |
b = 25.6544 (19) Å | µ = 8.64 mm−1 |
c = 8.3365 (6) Å | T = 298 K |
β = 112.787 (1)° | Block, colorless |
V = 1866.3 (2) Å3 | 0.40 × 0.35 × 0.33 mm |
Z = 4 |
Bruker SMART CCD diffractometer | 3295 independent reflections |
Radiation source: fine-focus sealed tube | 1454 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.086 |
φ and ω scans | θmax = 25.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | h = −9→11 |
Tmin = 0.130, Tmax = 0.163 | k = −30→30 |
9436 measured reflections | l = −9→8 |
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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.068 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.0024P)2] where P = (Fo2 + 2Fc2)/3 |
3295 reflections | (Δ/σ)max = 0.001 |
200 parameters | Δρmax = 0.49 e Å−3 |
0 restraints | Δρmin = −0.51 e Å−3 |
C2H8N+·C9H3Br4O4−·CH4O | V = 1866.3 (2) Å3 |
Mr = 572.89 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.4651 (8) Å | µ = 8.64 mm−1 |
b = 25.6544 (19) Å | T = 298 K |
c = 8.3365 (6) Å | 0.40 × 0.35 × 0.33 mm |
β = 112.787 (1)° |
Bruker SMART CCD diffractometer | 3295 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | 1454 reflections with I > 2σ(I) |
Tmin = 0.130, Tmax = 0.163 | Rint = 0.086 |
9436 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.068 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.49 e Å−3 |
3295 reflections | Δρmin = −0.51 e Å−3 |
200 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 | 0.32729 (8) | 0.90633 (3) | 0.26426 (13) | 0.0702 (3) | |
Br2 | 0.40752 (9) | 1.03175 (3) | 0.25156 (12) | 0.0705 (3) | |
Br3 | 0.73585 (10) | 1.06551 (3) | 0.23297 (14) | 0.0807 (3) | |
Br4 | 0.98266 (9) | 0.97499 (3) | 0.23443 (13) | 0.0773 (3) | |
N1 | 0.5436 (6) | 0.7996 (2) | 0.8034 (8) | 0.0546 (19) | |
H1A | 0.5376 | 0.8133 | 0.8986 | 0.082* | |
H1B | 0.6186 | 0.8151 | 0.7820 | 0.082* | |
H1C | 0.5631 | 0.7656 | 0.8196 | 0.082* | |
O1 | 0.8313 (6) | 0.8333 (2) | 0.1273 (8) | 0.0672 (18) | |
O2 | 0.9937 (7) | 0.8565 (2) | 0.3871 (9) | 0.101 (3) | |
O3 | 0.6431 (6) | 0.8063 (2) | 0.3863 (8) | 0.076 (2) | |
O4 | 0.4945 (6) | 0.8125 (2) | 0.1079 (8) | 0.0713 (19) | |
O5 | 0.7663 (7) | 0.8481 (2) | 0.7090 (7) | 0.104 (2) | |
H5 | 0.7413 | 0.8383 | 0.6081 | 0.157* | |
C1 | 0.8783 (9) | 0.8620 (3) | 0.2667 (14) | 0.050 (3) | |
C2 | 0.5820 (10) | 0.8306 (3) | 0.2499 (14) | 0.050 (3) | |
C3 | 0.7630 (7) | 0.9042 (3) | 0.2521 (9) | 0.0369 (19) | |
C4 | 0.6200 (8) | 0.8886 (3) | 0.2517 (9) | 0.040 (2) | |
C5 | 0.5158 (7) | 0.9276 (3) | 0.2534 (9) | 0.040 (2) | |
C6 | 0.5515 (7) | 0.9794 (3) | 0.2527 (9) | 0.047 (2) | |
C7 | 0.6915 (8) | 0.9947 (3) | 0.2450 (10) | 0.045 (2) | |
C8 | 0.7960 (7) | 0.9565 (3) | 0.2469 (9) | 0.040 (2) | |
C9 | 0.9329 (9) | 0.7886 (3) | 0.1323 (11) | 0.097 (3) | |
H9A | 1.0367 | 0.8006 | 0.1685 | 0.146* | |
H9B | 0.9010 | 0.7734 | 0.0185 | 0.146* | |
H9C | 0.9266 | 0.7629 | 0.2131 | 0.146* | |
C10 | 0.3935 (9) | 0.8076 (3) | 0.6508 (10) | 0.056 (2) | |
H10A | 0.3730 | 0.8447 | 0.6333 | 0.068* | |
H10B | 0.4018 | 0.7937 | 0.5466 | 0.068* | |
C11 | 0.2643 (8) | 0.7820 (3) | 0.6773 (10) | 0.081 (3) | |
H11A | 0.2763 | 0.7449 | 0.6766 | 0.121* | |
H11B | 0.1697 | 0.7919 | 0.5854 | 0.121* | |
H11C | 0.2630 | 0.7926 | 0.7872 | 0.121* | |
C12 | 0.8988 (9) | 0.8774 (3) | 0.7572 (12) | 0.104 (4) | |
H12A | 0.9141 | 0.8959 | 0.8627 | 0.155* | |
H12B | 0.8899 | 0.9019 | 0.6667 | 0.155* | |
H12C | 0.9844 | 0.8548 | 0.7757 | 0.155* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0399 (5) | 0.0808 (7) | 0.1016 (9) | −0.0038 (5) | 0.0403 (6) | 0.0061 (6) |
Br2 | 0.0615 (6) | 0.0617 (6) | 0.0956 (8) | 0.0286 (5) | 0.0386 (6) | 0.0063 (6) |
Br3 | 0.0898 (7) | 0.0337 (5) | 0.1331 (10) | −0.0058 (5) | 0.0592 (7) | −0.0010 (6) |
Br4 | 0.0455 (6) | 0.0699 (7) | 0.1306 (10) | −0.0122 (5) | 0.0496 (6) | −0.0070 (6) |
N1 | 0.061 (5) | 0.042 (4) | 0.072 (6) | −0.011 (3) | 0.039 (4) | 0.000 (4) |
O1 | 0.057 (4) | 0.063 (4) | 0.077 (5) | 0.027 (3) | 0.022 (4) | −0.014 (4) |
O2 | 0.068 (4) | 0.114 (6) | 0.085 (6) | 0.048 (4) | −0.011 (4) | −0.033 (4) |
O3 | 0.101 (5) | 0.044 (4) | 0.070 (5) | −0.006 (3) | 0.020 (4) | 0.019 (4) |
O4 | 0.094 (5) | 0.062 (4) | 0.062 (5) | −0.038 (3) | 0.035 (4) | −0.021 (4) |
O5 | 0.101 (5) | 0.150 (6) | 0.074 (6) | −0.064 (4) | 0.048 (4) | −0.018 (4) |
C1 | 0.036 (6) | 0.042 (6) | 0.072 (9) | 0.003 (5) | 0.020 (6) | −0.009 (6) |
C2 | 0.047 (6) | 0.036 (6) | 0.075 (9) | −0.006 (5) | 0.035 (6) | −0.005 (6) |
C3 | 0.031 (4) | 0.028 (4) | 0.057 (6) | −0.003 (4) | 0.023 (4) | −0.005 (5) |
C4 | 0.043 (5) | 0.032 (5) | 0.043 (6) | 0.007 (4) | 0.017 (5) | −0.002 (4) |
C5 | 0.026 (4) | 0.038 (5) | 0.060 (6) | −0.007 (4) | 0.021 (4) | −0.004 (5) |
C6 | 0.035 (5) | 0.045 (6) | 0.058 (6) | 0.014 (4) | 0.016 (5) | −0.001 (4) |
C7 | 0.032 (5) | 0.033 (5) | 0.068 (6) | −0.003 (4) | 0.019 (5) | 0.003 (4) |
C8 | 0.016 (4) | 0.041 (5) | 0.062 (6) | −0.001 (4) | 0.014 (4) | −0.002 (5) |
C9 | 0.090 (7) | 0.080 (7) | 0.106 (9) | 0.045 (6) | 0.022 (6) | −0.025 (6) |
C10 | 0.077 (6) | 0.046 (6) | 0.040 (6) | 0.018 (5) | 0.015 (6) | 0.009 (5) |
C11 | 0.052 (6) | 0.097 (7) | 0.085 (8) | −0.013 (5) | 0.017 (6) | 0.016 (6) |
C12 | 0.082 (7) | 0.100 (8) | 0.144 (10) | −0.050 (6) | 0.060 (7) | −0.030 (7) |
Br1—C5 | 1.902 (6) | C3—C4 | 1.411 (8) |
Br2—C6 | 1.911 (6) | C4—C5 | 1.410 (8) |
Br3—C7 | 1.876 (6) | C5—C6 | 1.370 (8) |
Br4—C8 | 1.871 (6) | C6—C7 | 1.408 (7) |
N1—C10 | 1.509 (8) | C7—C8 | 1.389 (8) |
N1—H1A | 0.8900 | C9—H9A | 0.9600 |
N1—H1B | 0.8900 | C9—H9B | 0.9600 |
N1—H1C | 0.8900 | C9—H9C | 0.9600 |
O1—C1 | 1.301 (9) | C10—C11 | 1.478 (8) |
O1—C9 | 1.487 (7) | C10—H10A | 0.9700 |
O2—C1 | 1.171 (9) | C10—H10B | 0.9700 |
O3—C2 | 1.227 (9) | C11—H11A | 0.9600 |
O4—C2 | 1.241 (9) | C11—H11B | 0.9600 |
O5—C12 | 1.381 (7) | C11—H11C | 0.9600 |
O5—H5 | 0.8200 | C12—H12A | 0.9600 |
C1—C3 | 1.507 (9) | C12—H12B | 0.9600 |
C2—C4 | 1.530 (9) | C12—H12C | 0.9600 |
C3—C8 | 1.381 (7) | ||
C10—N1—H1A | 109.5 | C6—C7—Br3 | 120.5 (5) |
C10—N1—H1B | 109.5 | C3—C8—C7 | 121.2 (6) |
H1A—N1—H1B | 109.5 | C3—C8—Br4 | 118.6 (5) |
C10—N1—H1C | 109.5 | C7—C8—Br4 | 120.2 (5) |
H1A—N1—H1C | 109.5 | O1—C9—H9A | 109.5 |
H1B—N1—H1C | 109.5 | O1—C9—H9B | 109.5 |
C1—O1—C9 | 114.7 (6) | H9A—C9—H9B | 109.5 |
C12—O5—H5 | 109.5 | O1—C9—H9C | 109.5 |
O2—C1—O1 | 125.5 (8) | H9A—C9—H9C | 109.5 |
O2—C1—C3 | 124.2 (9) | H9B—C9—H9C | 109.5 |
O1—C1—C3 | 110.4 (7) | C11—C10—N1 | 112.1 (6) |
O3—C2—O4 | 126.6 (8) | C11—C10—H10A | 109.2 |
O3—C2—C4 | 117.4 (8) | N1—C10—H10A | 109.2 |
O4—C2—C4 | 116.0 (8) | C11—C10—H10B | 109.2 |
C8—C3—C4 | 120.3 (6) | N1—C10—H10B | 109.2 |
C8—C3—C1 | 122.3 (6) | H10A—C10—H10B | 107.9 |
C4—C3—C1 | 117.4 (6) | C10—C11—H11A | 109.5 |
C5—C4—C3 | 118.2 (6) | C10—C11—H11B | 109.5 |
C5—C4—C2 | 121.9 (7) | H11A—C11—H11B | 109.5 |
C3—C4—C2 | 119.9 (6) | C10—C11—H11C | 109.5 |
C6—C5—C4 | 121.0 (6) | H11A—C11—H11C | 109.5 |
C6—C5—Br1 | 121.0 (5) | H11B—C11—H11C | 109.5 |
C4—C5—Br1 | 118.0 (5) | O5—C12—H12A | 109.5 |
C5—C6—C7 | 120.6 (6) | O5—C12—H12B | 109.5 |
C5—C6—Br2 | 120.3 (5) | H12A—C12—H12B | 109.5 |
C7—C6—Br2 | 119.0 (6) | O5—C12—H12C | 109.5 |
C8—C7—C6 | 118.8 (6) | H12A—C12—H12C | 109.5 |
C8—C7—Br3 | 120.8 (5) | H12B—C12—H12C | 109.5 |
C9—O1—C1—O2 | 3.5 (13) | C2—C4—C5—Br1 | 2.8 (10) |
C9—O1—C1—C3 | −176.8 (6) | C4—C5—C6—C7 | 1.9 (11) |
O2—C1—C3—C8 | 64.3 (12) | Br1—C5—C6—C7 | 179.9 (5) |
O1—C1—C3—C8 | −115.3 (8) | C4—C5—C6—Br2 | 179.1 (5) |
O2—C1—C3—C4 | −112.9 (10) | Br1—C5—C6—Br2 | −2.9 (9) |
O1—C1—C3—C4 | 67.5 (9) | C5—C6—C7—C8 | −3.2 (11) |
C8—C3—C4—C5 | −2.7 (10) | Br2—C6—C7—C8 | 179.6 (6) |
C1—C3—C4—C5 | 174.6 (7) | C5—C6—C7—Br3 | 177.0 (6) |
C8—C3—C4—C2 | 177.5 (7) | Br2—C6—C7—Br3 | −0.2 (8) |
C1—C3—C4—C2 | −5.3 (11) | C4—C3—C8—C7 | 1.4 (11) |
O3—C2—C4—C5 | −104.5 (9) | C1—C3—C8—C7 | −175.7 (8) |
O4—C2—C4—C5 | 77.2 (10) | C4—C3—C8—Br4 | −176.4 (5) |
O3—C2—C4—C3 | 75.3 (10) | C1—C3—C8—Br4 | 6.4 (11) |
O4—C2—C4—C3 | −103.0 (8) | C6—C7—C8—C3 | 1.5 (11) |
C3—C4—C5—C6 | 1.0 (10) | Br3—C7—C8—C3 | −178.7 (5) |
C2—C4—C5—C6 | −179.1 (7) | C6—C7—C8—Br4 | 179.3 (5) |
C3—C4—C5—Br1 | −177.0 (5) | Br3—C7—C8—Br4 | −0.9 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O4i | 0.89 | 1.94 | 2.772 (9) | 155 |
N1—H1B···O5 | 0.89 | 1.92 | 2.810 (9) | 174 |
N1—H1C···O3ii | 0.89 | 1.99 | 2.871 (7) | 170 |
N1—H1C···O4ii | 0.89 | 2.58 | 3.249 (8) | 132 |
O5—H5···O3 | 0.82 | 1.90 | 2.705 (8) | 165 |
C10—H10A···Br3iii | 0.97 | 2.92 | 3.736 (8) | 143 |
C11—H11B···O2iv | 0.96 | 2.47 | 3.357 (10) | 153 |
Symmetry codes: (i) x, y, z+1; (ii) x, −y+3/2, z+1/2; (iii) −x+1, −y+2, −z+1; (iv) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C2H8N+·C9H3Br4O4−·CH4O |
Mr | 572.89 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 9.4651 (8), 25.6544 (19), 8.3365 (6) |
β (°) | 112.787 (1) |
V (Å3) | 1866.3 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 8.64 |
Crystal size (mm) | 0.40 × 0.35 × 0.33 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 1997) |
Tmin, Tmax | 0.130, 0.163 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9436, 3295, 1454 |
Rint | 0.086 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.068, 0.99 |
No. of reflections | 3295 |
No. of parameters | 200 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.49, −0.51 |
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···O4i | 0.89 | 1.94 | 2.772 (9) | 155 |
N1—H1B···O5 | 0.89 | 1.92 | 2.810 (9) | 174 |
N1—H1C···O3ii | 0.89 | 1.99 | 2.871 (7) | 170 |
N1—H1C···O4ii | 0.89 | 2.58 | 3.249 (8) | 132 |
O5—H5···O3 | 0.82 | 1.90 | 2.705 (8) | 165 |
C10—H10A···Br3iii | 0.97 | 2.92 | 3.736 (8) | 143 |
C11—H11B···O2iv | 0.96 | 2.47 | 3.357 (10) | 153 |
Symmetry codes: (i) x, y, z+1; (ii) x, −y+3/2, z+1/2; (iii) −x+1, −y+2, −z+1; (iv) x−1, y, z. |
Acknowledgements
The author thanks Shandong Provincial Natural Science Foundation, China (ZR2009BL027) for support.
References
Bruker (1997). SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Liang, Z.-P. (2008). Acta Cryst. E64, o2416. 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. 2-(Methoxycarbonyl)-3,4,5,6-tetrabromobenzoic acid is an intermediate in the sytnthesis of this flame retardant. In this paper, the structure of the title compound is reported. The asymmetric unit of the title compound (I) contains one ethanaminium cation, one 2-(methoxycarbonyl)-3,4,5,6-tetrabromobenzoate anion and one methanol solvent molecule (Fig. 1). The bond lengths and angles agree with those in ethane-1,2-diaminium 2-(methoxycarbonyl)-3,4,5,6-tetrabromo benzoate methanol solvate (Liang, 2008). In the crystal structure, intermolecular N—H···O and O—H···O hydrogen bonds link the components of the structure into one-dimensional chains along [001](see fig. 2). Additional stabilization is supplied by weak C—H···O and C—H···Br interactions.