organic compounds
Di-n-butylammonium 2-[(3,5-di-tert-butyl-4-hydroxybenzyl)sulfanyl]benzoate
aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and bDepartment of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA
*Correspondence e-mail: khaledi@siswa.um.edu.my
The title salt, C8H20N+·C22H27O3S−, is a proton-transfer compound derived from the recently reported parent carboxylic acid [Alhadi et al. (2010). Acta Cryst. E66, o1787] by the addition of a second equivalent of di-n-butylamine, yielding the di-n-butylammonium carboxylate salt. The structure of the carboxylate anion resembles that of the parent carboxylic acid. The main difference lies in the position of the H atom in the 4-hydroxy group. In the anion the O—H bond is perpendicular, rather than parallel, to the benzyl ring. This position appears to facilitate hydrogen bonding to an O atom of the carboxylate group of a symmetry-related anion. In addition, there are three N—H⋯O hydrogen bonds. In contrast, the neutral species hydrogen bonds via a carboxylic acid dimer. The dihedral angle between the benzene rings in the anion is 79.19 (7)°.
Related literature
For the structure of the parent benzoic acid, see: Alhadi et al. (2010). For a similar structure based on nicotinic acid, see: Mansor et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Bruker, 2007); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536810033921/bh2302sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810033921/bh2302Isup2.hkl
Thiosalicylic acid (0.154 g, 1 mmol), 2,6-di-t-butylphenol (2.00 g, 1 mmol) and paraformaldehyde (0.291 g, 1 mmol) were ground into a homogenous powder and to this was added di-n-butylamine (0.1 ml). The slurry was heated to 353 K for 2.5 h, then cooled to 323 K. Ethanol (20 ml) was added and the mixture was stirred for 1 h at room temperature. To the resulting clear solution di-n-butylamine (0.1 ml) was added and the solution was set aside in the dark for 5 days whereupon the colorless crystals of the title compound were obtained.
The C-bound hydrogen atoms were placed at calculated positions (C—H 0.93–0.97 Å) and were treated as riding on their parent atoms. The nitrogen- and oxygen-bound hydrogen atoms were located in a difference map and were refined freely with distances restrained to N—H 0.86 (2) and O—H 0.82 (2) Å. For all H atoms, Uiso(H) was set to 1.2–1.5 Ueq(carrier atom).
As shown in Fig. 1, the title compound is a di-n-butylammonium salt. It is a proton transfer derivative of the previously reported benzoic acid analog (Alhadi et al., 2010). In contrast to the structure of the parent carboxylic acid in which the C—O—H fragment was found coplanar to the aromatic ring and therefore not involved in any hydrogen bonding, in the present structure the O—H bond is perpendicular to the aromatic ring, and it participates in hydrogen bonding to the carboxylate group of the neighboring anion, forming an infinite chain along the a axis (Fig. 2). This arrangement is similar to that reported for the salt based on nicotinic acid (Mansor et al., 2008). The dihedral angle between the aromatic rings C2/C3/C4/C5/C6/C7 and C9/C10/C11/C12/C13/C14 is 79.19 (7)°.
For the structure of the parent benzoic acid, see: Alhadi et al. (2010). For a similar structure based on nicotinic acid, see: Mansor et al. (2008).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Bruker, 2007); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. Thermal ellipsoid plot of the title compound at the 30% probability level. H atoms participating in hydrogen bonding are drawn as spheres of arbitrary radius. | |
Fig. 2. A view of the hydrogen bonding interactions (dashed lines) as viewed down b. Symmetry codes: ' = x - 1, y, z; " = -x + 1, -y, -z + 1. |
C8H20N+·C22H27O3S− | F(000) = 2192 |
Mr = 501.75 | Dx = 1.116 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 3944 reflections |
a = 12.8631 (5) Å | θ = 2.4–19.4° |
b = 20.1109 (9) Å | µ = 0.14 mm−1 |
c = 23.0930 (9) Å | T = 296 K |
V = 5973.9 (4) Å3 | Irregular block, colourless |
Z = 8 | 0.60 × 0.40 × 0.35 mm |
Bruker APEXII diffractometer | 5277 independent reflections |
Radiation source: fine-focus sealed tube | 3311 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.080 |
φ and ω scans | θmax = 25.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −15→15 |
Tmin = 0.922, Tmax = 0.954 | k = −23→23 |
44646 measured reflections | l = −27→27 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.138 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0533P)2 + 2.2704P] where P = (Fo2 + 2Fc2)/3 |
5277 reflections | (Δ/σ)max < 0.001 |
333 parameters | Δρmax = 0.28 e Å−3 |
3 restraints | Δρmin = −0.17 e Å−3 |
0 constraints |
C8H20N+·C22H27O3S− | V = 5973.9 (4) Å3 |
Mr = 501.75 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 12.8631 (5) Å | µ = 0.14 mm−1 |
b = 20.1109 (9) Å | T = 296 K |
c = 23.0930 (9) Å | 0.60 × 0.40 × 0.35 mm |
Bruker APEXII diffractometer | 5277 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3311 reflections with I > 2σ(I) |
Tmin = 0.922, Tmax = 0.954 | Rint = 0.080 |
44646 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 3 restraints |
wR(F2) = 0.138 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | Δρmax = 0.28 e Å−3 |
5277 reflections | Δρmin = −0.17 e Å−3 |
333 parameters |
x | y | z | Uiso*/Ueq | ||
C1 | 0.4142 (2) | 0.10279 (13) | 0.41431 (11) | 0.0573 (7) | |
S1 | 0.64187 (5) | 0.14037 (4) | 0.37500 (3) | 0.0571 (2) | |
O1 | 0.32489 (16) | 0.08674 (12) | 0.42807 (11) | 0.1060 (9) | |
O2 | 0.49152 (15) | 0.07570 (10) | 0.43550 (9) | 0.0799 (6) | |
O3 | 1.11548 (13) | 0.06947 (10) | 0.41947 (9) | 0.0676 (5) | |
H3 | 1.1701 (18) | 0.0878 (16) | 0.4133 (14) | 0.101* | |
N1 | 0.65789 (17) | 0.01880 (12) | 0.49304 (11) | 0.0639 (6) | |
H1A | 0.6030 (17) | 0.0360 (13) | 0.4749 (11) | 0.077* | |
H1B | 0.639 (2) | −0.0157 (11) | 0.5148 (11) | 0.077* | |
C2 | 0.42822 (17) | 0.15713 (11) | 0.37050 (9) | 0.0443 (6) | |
C3 | 0.34012 (19) | 0.18891 (13) | 0.34973 (11) | 0.0552 (6) | |
H3A | 0.2754 | 0.1757 | 0.3635 | 0.066* | |
C4 | 0.3448 (2) | 0.23882 (15) | 0.30980 (12) | 0.0669 (8) | |
H4 | 0.2843 | 0.2591 | 0.2966 | 0.080* | |
C5 | 0.4395 (2) | 0.25874 (15) | 0.28939 (13) | 0.0732 (9) | |
H5 | 0.4436 | 0.2928 | 0.2623 | 0.088* | |
C6 | 0.5294 (2) | 0.22837 (14) | 0.30893 (12) | 0.0648 (7) | |
H6 | 0.5934 | 0.2422 | 0.2945 | 0.078* | |
C7 | 0.52605 (17) | 0.17767 (12) | 0.34970 (10) | 0.0459 (6) | |
C8 | 0.74329 (17) | 0.18495 (13) | 0.33648 (11) | 0.0579 (7) | |
H8A | 0.7354 | 0.1789 | 0.2950 | 0.069* | |
H8B | 0.7394 | 0.2321 | 0.3450 | 0.069* | |
C9 | 0.84580 (18) | 0.15715 (13) | 0.35632 (11) | 0.0512 (6) | |
C10 | 0.89894 (18) | 0.11082 (12) | 0.32410 (11) | 0.0516 (6) | |
H10 | 0.8716 | 0.0979 | 0.2885 | 0.062* | |
C11 | 0.99201 (17) | 0.08236 (12) | 0.34249 (10) | 0.0482 (6) | |
C12 | 1.02979 (17) | 0.10199 (12) | 0.39672 (10) | 0.0486 (6) | |
C13 | 0.97987 (18) | 0.15064 (13) | 0.43035 (10) | 0.0524 (6) | |
C14 | 0.88760 (18) | 0.17683 (13) | 0.40858 (11) | 0.0556 (7) | |
H14 | 0.8527 | 0.2089 | 0.4302 | 0.067* | |
C15 | 1.0201 (2) | 0.17282 (17) | 0.49001 (12) | 0.0734 (9) | |
C16 | 0.9545 (3) | 0.2305 (2) | 0.51411 (17) | 0.1397 (19) | |
H16A | 0.9577 | 0.2675 | 0.4879 | 0.209* | |
H16B | 0.9814 | 0.2436 | 0.5512 | 0.209* | |
H16C | 0.8837 | 0.2164 | 0.5183 | 0.209* | |
C17 | 1.0103 (3) | 0.1149 (2) | 0.53240 (13) | 0.1155 (15) | |
H17A | 1.0507 | 0.0780 | 0.5186 | 0.173* | |
H17B | 0.9387 | 0.1020 | 0.5355 | 0.173* | |
H17C | 1.0354 | 0.1284 | 0.5697 | 0.173* | |
C18 | 1.1328 (2) | 0.19722 (19) | 0.48760 (15) | 0.0960 (11) | |
H18A | 1.1779 | 0.1605 | 0.4790 | 0.144* | |
H18B | 1.1516 | 0.2161 | 0.5243 | 0.144* | |
H18C | 1.1395 | 0.2304 | 0.4579 | 0.144* | |
C19 | 1.04977 (19) | 0.03203 (13) | 0.30369 (11) | 0.0579 (7) | |
C20 | 0.9917 (2) | 0.02028 (16) | 0.24637 (13) | 0.0822 (9) | |
H20A | 1.0298 | −0.0109 | 0.2231 | 0.123* | |
H20B | 0.9854 | 0.0616 | 0.2258 | 0.123* | |
H20C | 0.9237 | 0.0028 | 0.2543 | 0.123* | |
C21 | 1.1572 (2) | 0.05973 (17) | 0.28782 (13) | 0.0846 (10) | |
H21A | 1.2001 | 0.0610 | 0.3218 | 0.127* | |
H21B | 1.1497 | 0.1039 | 0.2725 | 0.127* | |
H21C | 1.1889 | 0.0317 | 0.2592 | 0.127* | |
C22 | 1.0605 (2) | −0.03551 (15) | 0.33351 (14) | 0.0824 (9) | |
H22A | 1.0975 | −0.0655 | 0.3086 | 0.124* | |
H22B | 0.9926 | −0.0532 | 0.3415 | 0.124* | |
H22C | 1.0980 | −0.0302 | 0.3691 | 0.124* | |
C23 | 0.7166 (4) | −0.1192 (2) | 0.3170 (2) | 0.1382 (17) | |
H23A | 0.6944 | −0.1593 | 0.3359 | 0.207* | |
H23B | 0.7700 | −0.1295 | 0.2894 | 0.207* | |
H23C | 0.6585 | −0.0993 | 0.2974 | 0.207* | |
C24 | 0.7569 (3) | −0.0731 (3) | 0.35968 (18) | 0.1261 (15) | |
H24A | 0.7790 | −0.0331 | 0.3397 | 0.151* | |
H24B | 0.8183 | −0.0928 | 0.3771 | 0.151* | |
C25 | 0.6833 (3) | −0.05329 (18) | 0.40777 (15) | 0.0897 (10) | |
H25A | 0.6222 | −0.0325 | 0.3910 | 0.108* | |
H25B | 0.6608 | −0.0929 | 0.4283 | 0.108* | |
C26 | 0.7327 (2) | −0.00614 (17) | 0.44985 (13) | 0.0771 (9) | |
H26A | 0.7892 | −0.0286 | 0.4696 | 0.093* | |
H26B | 0.7619 | 0.0312 | 0.4288 | 0.093* | |
C27 | 0.7013 (2) | 0.06935 (16) | 0.53258 (14) | 0.0783 (9) | |
H27A | 0.7257 | 0.1071 | 0.5102 | 0.094* | |
H27B | 0.7603 | 0.0507 | 0.5530 | 0.094* | |
C28 | 0.6206 (3) | 0.09282 (17) | 0.57620 (15) | 0.0901 (10) | |
H28A | 0.5647 | 0.1150 | 0.5557 | 0.108* | |
H28B | 0.5914 | 0.0544 | 0.5957 | 0.108* | |
C29 | 0.6642 (3) | 0.1391 (2) | 0.62032 (18) | 0.1121 (13) | |
H29A | 0.6988 | 0.1755 | 0.6006 | 0.135* | |
H29B | 0.7160 | 0.1157 | 0.6430 | 0.135* | |
C30 | 0.5837 (3) | 0.1671 (3) | 0.6604 (2) | 0.1449 (18) | |
H30A | 0.5335 | 0.1918 | 0.6384 | 0.217* | |
H30B | 0.6164 | 0.1959 | 0.6880 | 0.217* | |
H30C | 0.5494 | 0.1314 | 0.6804 | 0.217* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0437 (15) | 0.0638 (17) | 0.0644 (17) | 0.0003 (14) | 0.0004 (13) | 0.0071 (14) |
S1 | 0.0381 (3) | 0.0675 (4) | 0.0658 (4) | 0.0052 (3) | −0.0047 (3) | 0.0172 (3) |
O1 | 0.0492 (12) | 0.1187 (19) | 0.150 (2) | −0.0007 (12) | 0.0137 (13) | 0.0679 (17) |
O2 | 0.0560 (12) | 0.0903 (15) | 0.0934 (15) | 0.0010 (11) | −0.0136 (10) | 0.0372 (12) |
O3 | 0.0384 (10) | 0.0833 (14) | 0.0810 (13) | 0.0067 (10) | −0.0051 (9) | 0.0132 (11) |
N1 | 0.0461 (13) | 0.0715 (17) | 0.0741 (17) | −0.0010 (12) | −0.0089 (12) | 0.0213 (13) |
C2 | 0.0394 (13) | 0.0497 (14) | 0.0437 (13) | 0.0041 (11) | −0.0048 (10) | −0.0035 (11) |
C3 | 0.0408 (14) | 0.0645 (17) | 0.0603 (16) | 0.0078 (12) | −0.0032 (12) | −0.0009 (14) |
C4 | 0.0497 (16) | 0.080 (2) | 0.0707 (18) | 0.0224 (15) | −0.0118 (13) | 0.0079 (16) |
C5 | 0.0632 (18) | 0.080 (2) | 0.076 (2) | 0.0161 (16) | −0.0034 (15) | 0.0288 (16) |
C6 | 0.0465 (15) | 0.0763 (19) | 0.0715 (18) | 0.0088 (14) | 0.0009 (13) | 0.0221 (16) |
C7 | 0.0400 (13) | 0.0513 (14) | 0.0462 (14) | 0.0064 (11) | −0.0047 (10) | 0.0040 (12) |
C8 | 0.0407 (14) | 0.0651 (17) | 0.0679 (17) | 0.0015 (13) | −0.0041 (12) | 0.0126 (14) |
C9 | 0.0388 (13) | 0.0586 (16) | 0.0562 (15) | −0.0020 (12) | −0.0018 (11) | 0.0095 (12) |
C10 | 0.0429 (13) | 0.0609 (16) | 0.0510 (15) | −0.0045 (13) | −0.0015 (11) | 0.0036 (13) |
C11 | 0.0379 (13) | 0.0557 (15) | 0.0512 (15) | −0.0006 (11) | 0.0068 (11) | 0.0065 (12) |
C12 | 0.0309 (12) | 0.0614 (16) | 0.0536 (15) | −0.0005 (12) | 0.0056 (11) | 0.0088 (12) |
C13 | 0.0375 (13) | 0.0700 (17) | 0.0497 (15) | −0.0021 (12) | 0.0020 (11) | 0.0026 (13) |
C14 | 0.0413 (14) | 0.0644 (17) | 0.0612 (17) | 0.0033 (12) | 0.0051 (12) | −0.0020 (13) |
C15 | 0.0501 (16) | 0.113 (2) | 0.0569 (18) | 0.0101 (17) | −0.0042 (13) | −0.0163 (17) |
C16 | 0.106 (3) | 0.208 (5) | 0.105 (3) | 0.055 (3) | −0.034 (2) | −0.092 (3) |
C17 | 0.072 (2) | 0.217 (5) | 0.058 (2) | −0.007 (3) | −0.0067 (17) | 0.031 (3) |
C18 | 0.070 (2) | 0.128 (3) | 0.090 (2) | −0.016 (2) | −0.0125 (17) | −0.031 (2) |
C19 | 0.0473 (15) | 0.0646 (17) | 0.0616 (17) | 0.0025 (13) | 0.0091 (12) | −0.0025 (14) |
C20 | 0.084 (2) | 0.091 (2) | 0.071 (2) | 0.0077 (18) | 0.0033 (17) | −0.0192 (18) |
C21 | 0.0661 (19) | 0.102 (3) | 0.086 (2) | −0.0117 (18) | 0.0308 (16) | −0.0162 (19) |
C22 | 0.079 (2) | 0.069 (2) | 0.099 (2) | 0.0095 (17) | 0.0052 (18) | 0.0039 (18) |
C23 | 0.154 (4) | 0.123 (3) | 0.138 (4) | 0.040 (3) | −0.021 (3) | −0.026 (3) |
C24 | 0.081 (3) | 0.181 (5) | 0.116 (3) | 0.021 (3) | −0.007 (2) | −0.011 (3) |
C25 | 0.071 (2) | 0.099 (3) | 0.099 (3) | 0.0172 (19) | −0.0035 (19) | 0.003 (2) |
C26 | 0.0496 (17) | 0.098 (2) | 0.084 (2) | 0.0130 (17) | −0.0005 (15) | 0.0249 (19) |
C27 | 0.0577 (18) | 0.088 (2) | 0.089 (2) | −0.0107 (17) | −0.0169 (16) | 0.0154 (18) |
C28 | 0.069 (2) | 0.095 (3) | 0.107 (3) | −0.0073 (19) | −0.0078 (19) | −0.009 (2) |
C29 | 0.090 (3) | 0.130 (3) | 0.117 (3) | −0.010 (2) | −0.009 (2) | −0.021 (3) |
C30 | 0.105 (3) | 0.183 (5) | 0.147 (4) | −0.021 (3) | 0.022 (3) | −0.055 (4) |
C1—O2 | 1.235 (3) | C17—H17B | 0.9600 |
C1—O1 | 1.235 (3) | C17—H17C | 0.9600 |
C1—C2 | 1.500 (3) | C18—H18A | 0.9600 |
S1—C7 | 1.767 (2) | C18—H18B | 0.9600 |
S1—C8 | 1.816 (2) | C18—H18C | 0.9600 |
O3—C12 | 1.385 (3) | C19—C22 | 1.529 (4) |
O3—H3 | 0.806 (18) | C19—C21 | 1.534 (4) |
N1—C26 | 1.474 (4) | C19—C20 | 1.538 (4) |
N1—C27 | 1.476 (4) | C20—H20A | 0.9600 |
N1—H1A | 0.890 (17) | C20—H20B | 0.9600 |
N1—H1B | 0.892 (17) | C20—H20C | 0.9600 |
C2—C3 | 1.387 (3) | C21—H21A | 0.9600 |
C2—C7 | 1.409 (3) | C21—H21B | 0.9600 |
C3—C4 | 1.364 (4) | C21—H21C | 0.9600 |
C3—H3A | 0.9300 | C22—H22A | 0.9600 |
C4—C5 | 1.366 (4) | C22—H22B | 0.9600 |
C4—H4 | 0.9300 | C22—H22C | 0.9600 |
C5—C6 | 1.383 (3) | C23—C24 | 1.450 (5) |
C5—H5 | 0.9300 | C23—H23A | 0.9600 |
C6—C7 | 1.389 (3) | C23—H23B | 0.9600 |
C6—H6 | 0.9300 | C23—H23C | 0.9600 |
C8—C9 | 1.504 (3) | C24—C25 | 1.513 (5) |
C8—H8A | 0.9700 | C24—H24A | 0.9700 |
C8—H8B | 0.9700 | C24—H24B | 0.9700 |
C9—C10 | 1.374 (3) | C25—C26 | 1.499 (4) |
C9—C14 | 1.379 (3) | C25—H25A | 0.9700 |
C10—C11 | 1.393 (3) | C25—H25B | 0.9700 |
C10—H10 | 0.9300 | C26—H26A | 0.9700 |
C11—C12 | 1.400 (3) | C26—H26B | 0.9700 |
C11—C19 | 1.543 (3) | C27—C28 | 1.521 (4) |
C12—C13 | 1.405 (3) | C27—H27A | 0.9700 |
C13—C14 | 1.392 (3) | C27—H27B | 0.9700 |
C13—C15 | 1.538 (4) | C28—C29 | 1.490 (5) |
C14—H14 | 0.9300 | C28—H28A | 0.9700 |
C15—C17 | 1.526 (5) | C28—H28B | 0.9700 |
C15—C18 | 1.532 (4) | C29—C30 | 1.498 (5) |
C15—C16 | 1.538 (4) | C29—H29A | 0.9700 |
C16—H16A | 0.9600 | C29—H29B | 0.9700 |
C16—H16B | 0.9600 | C30—H30A | 0.9600 |
C16—H16C | 0.9600 | C30—H30B | 0.9600 |
C17—H17A | 0.9600 | C30—H30C | 0.9600 |
O2—C1—O1 | 122.1 (3) | H18A—C18—H18C | 109.5 |
O2—C1—C2 | 119.5 (2) | H18B—C18—H18C | 109.5 |
O1—C1—C2 | 118.4 (2) | C22—C19—C21 | 110.4 (2) |
C7—S1—C8 | 103.55 (11) | C22—C19—C20 | 107.2 (2) |
C12—O3—H3 | 114 (3) | C21—C19—C20 | 106.7 (2) |
C26—N1—C27 | 114.0 (2) | C22—C19—C11 | 111.4 (2) |
C26—N1—H1A | 109.4 (18) | C21—C19—C11 | 109.5 (2) |
C27—N1—H1A | 108.8 (18) | C20—C19—C11 | 111.5 (2) |
C26—N1—H1B | 107.3 (18) | C19—C20—H20A | 109.5 |
C27—N1—H1B | 106.9 (18) | C19—C20—H20B | 109.5 |
H1A—N1—H1B | 110 (3) | H20A—C20—H20B | 109.5 |
C3—C2—C7 | 118.5 (2) | C19—C20—H20C | 109.5 |
C3—C2—C1 | 118.1 (2) | H20A—C20—H20C | 109.5 |
C7—C2—C1 | 123.4 (2) | H20B—C20—H20C | 109.5 |
C4—C3—C2 | 122.5 (2) | C19—C21—H21A | 109.5 |
C4—C3—H3A | 118.8 | C19—C21—H21B | 109.5 |
C2—C3—H3A | 118.8 | H21A—C21—H21B | 109.5 |
C3—C4—C5 | 119.2 (2) | C19—C21—H21C | 109.5 |
C3—C4—H4 | 120.4 | H21A—C21—H21C | 109.5 |
C5—C4—H4 | 120.4 | H21B—C21—H21C | 109.5 |
C4—C5—C6 | 120.2 (3) | C19—C22—H22A | 109.5 |
C4—C5—H5 | 119.9 | C19—C22—H22B | 109.5 |
C6—C5—H5 | 119.9 | H22A—C22—H22B | 109.5 |
C5—C6—C7 | 121.3 (2) | C19—C22—H22C | 109.5 |
C5—C6—H6 | 119.4 | H22A—C22—H22C | 109.5 |
C7—C6—H6 | 119.4 | H22B—C22—H22C | 109.5 |
C6—C7—C2 | 118.3 (2) | C24—C23—H23A | 109.5 |
C6—C7—S1 | 120.62 (18) | C24—C23—H23B | 109.5 |
C2—C7—S1 | 121.05 (17) | H23A—C23—H23B | 109.5 |
C9—C8—S1 | 107.30 (17) | C24—C23—H23C | 109.5 |
C9—C8—H8A | 110.3 | H23A—C23—H23C | 109.5 |
S1—C8—H8A | 110.3 | H23B—C23—H23C | 109.5 |
C9—C8—H8B | 110.3 | C23—C24—C25 | 116.3 (4) |
S1—C8—H8B | 110.3 | C23—C24—H24A | 108.2 |
H8A—C8—H8B | 108.5 | C25—C24—H24A | 108.2 |
C10—C9—C14 | 118.3 (2) | C23—C24—H24B | 108.2 |
C10—C9—C8 | 121.6 (2) | C25—C24—H24B | 108.2 |
C14—C9—C8 | 120.1 (2) | H24A—C24—H24B | 107.4 |
C9—C10—C11 | 122.7 (2) | C26—C25—C24 | 112.1 (3) |
C9—C10—H10 | 118.6 | C26—C25—H25A | 109.2 |
C11—C10—H10 | 118.6 | C24—C25—H25A | 109.2 |
C10—C11—C12 | 117.1 (2) | C26—C25—H25B | 109.2 |
C10—C11—C19 | 120.4 (2) | C24—C25—H25B | 109.2 |
C12—C11—C19 | 122.5 (2) | H25A—C25—H25B | 107.9 |
O3—C12—C11 | 118.8 (2) | N1—C26—C25 | 112.2 (2) |
O3—C12—C13 | 118.9 (2) | N1—C26—H26A | 109.2 |
C11—C12—C13 | 122.2 (2) | C25—C26—H26A | 109.2 |
C14—C13—C12 | 117.0 (2) | N1—C26—H26B | 109.2 |
C14—C13—C15 | 120.0 (2) | C25—C26—H26B | 109.2 |
C12—C13—C15 | 122.9 (2) | H26A—C26—H26B | 107.9 |
C9—C14—C13 | 122.7 (2) | N1—C27—C28 | 111.4 (2) |
C9—C14—H14 | 118.7 | N1—C27—H27A | 109.3 |
C13—C14—H14 | 118.7 | C28—C27—H27A | 109.3 |
C17—C15—C18 | 110.2 (3) | N1—C27—H27B | 109.3 |
C17—C15—C13 | 109.0 (3) | C28—C27—H27B | 109.3 |
C18—C15—C13 | 112.2 (2) | H27A—C27—H27B | 108.0 |
C17—C15—C16 | 107.4 (3) | C29—C28—C27 | 113.0 (3) |
C18—C15—C16 | 106.9 (3) | C29—C28—H28A | 109.0 |
C13—C15—C16 | 111.0 (2) | C27—C28—H28A | 109.0 |
C15—C16—H16A | 109.5 | C29—C28—H28B | 109.0 |
C15—C16—H16B | 109.5 | C27—C28—H28B | 109.0 |
H16A—C16—H16B | 109.5 | H28A—C28—H28B | 107.8 |
C15—C16—H16C | 109.5 | C28—C29—C30 | 113.4 (3) |
H16A—C16—H16C | 109.5 | C28—C29—H29A | 108.9 |
H16B—C16—H16C | 109.5 | C30—C29—H29A | 108.9 |
C15—C17—H17A | 109.5 | C28—C29—H29B | 108.9 |
C15—C17—H17B | 109.5 | C30—C29—H29B | 108.9 |
H17A—C17—H17B | 109.5 | H29A—C29—H29B | 107.7 |
C15—C17—H17C | 109.5 | C29—C30—H30A | 109.5 |
H17A—C17—H17C | 109.5 | C29—C30—H30B | 109.5 |
H17B—C17—H17C | 109.5 | H30A—C30—H30B | 109.5 |
C15—C18—H18A | 109.5 | C29—C30—H30C | 109.5 |
C15—C18—H18B | 109.5 | H30A—C30—H30C | 109.5 |
H18A—C18—H18B | 109.5 | H30B—C30—H30C | 109.5 |
C15—C18—H18C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O1i | 0.81 (2) | 2.02 (2) | 2.723 (3) | 146 (3) |
N1—H1A···O2 | 0.89 (2) | 1.88 (2) | 2.767 (3) | 177 (3) |
N1—H1B···O1ii | 0.89 (2) | 2.00 (2) | 2.806 (3) | 150 (3) |
N1—H1B···O2ii | 0.89 (2) | 2.36 (2) | 3.167 (3) | 150 (2) |
N1—H1B···O2ii | 0.89 (2) | 2.36 (2) | 3.167 (3) | 150 (2) |
Symmetry codes: (i) x+1, y, z; (ii) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C8H20N+·C22H27O3S− |
Mr | 501.75 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 296 |
a, b, c (Å) | 12.8631 (5), 20.1109 (9), 23.0930 (9) |
V (Å3) | 5973.9 (4) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.14 |
Crystal size (mm) | 0.60 × 0.40 × 0.35 |
Data collection | |
Diffractometer | Bruker APEXII |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.922, 0.954 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 44646, 5277, 3311 |
Rint | 0.080 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.138, 1.01 |
No. of reflections | 5277 |
No. of parameters | 333 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.28, −0.17 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP (Bruker, 2007), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O1i | 0.806 (18) | 2.02 (2) | 2.723 (3) | 146 (3) |
N1—H1A···O2 | 0.890 (17) | 1.878 (17) | 2.767 (3) | 177 (3) |
N1—H1B···O1ii | 0.892 (17) | 2.00 (2) | 2.806 (3) | 150 (3) |
N1—H1B···O2ii | 0.892 (17) | 2.36 (2) | 3.167 (3) | 150 (2) |
N1—H1B···O2ii | 0.892 (17) | 2.36 (2) | 3.167 (3) | 150 (2) |
Symmetry codes: (i) x+1, y, z; (ii) −x+1, −y, −z+1. |
Acknowledgements
The authors thank the University of Malaya for funding this study (FRGS grant FP009/2008 C).
References
Alhadi, A. A., Khaledi, H., Mohd Ali, H. & Olmstead, M. M. (2010). Acta Cryst. E66, o1787. Web of Science CSD CrossRef IUCr Journals Google Scholar
Bruker (2007). APEX2, SAINT and XP. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Mansor, S., Yehye, W. A., Ariffin, A., Rahman, N. A. & Ng, S. W. (2008). Acta Cryst. E64, o1799. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
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As shown in Fig. 1, the title compound is a di-n-butylammonium salt. It is a proton transfer derivative of the previously reported benzoic acid analog (Alhadi et al., 2010). In contrast to the structure of the parent carboxylic acid in which the C—O—H fragment was found coplanar to the aromatic ring and therefore not involved in any hydrogen bonding, in the present structure the O—H bond is perpendicular to the aromatic ring, and it participates in hydrogen bonding to the carboxylate group of the neighboring anion, forming an infinite chain along the a axis (Fig. 2). This arrangement is similar to that reported for the salt based on nicotinic acid (Mansor et al., 2008). The dihedral angle between the aromatic rings C2/C3/C4/C5/C6/C7 and C9/C10/C11/C12/C13/C14 is 79.19 (7)°.