organic compounds
Bis[diethyl(hydroxy)ammonium] benzene-1,4-dicarboxylate
aResearch Institute of Materials and Surface Engineering, School of Mechnical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China, bAnalytical Center, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China, and cCollege of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310018, People's Republic of China
*Correspondence e-mail: cchhyy@sina.cn
In the centrosymmetric title compound, 2C4H12NO+·C8H4O42−, two N,N-diethyl(hydroxy)ammonium cations are linked to a benzene-1,4-dicarboxylate dianion by a combination of O—H⋯O and N—H⋯O hydrogen bonds, which can be described in graph-set terminology as R22(7). The is further stabilized by C—H⋯O hydrogen bonds, leading to the fomation of a ribbon-like network.
Related literature
For similar supamolecular structures involving benzenedicarboxylic acids, see: Chatterjee et al. (2000); Herbstein & Kapon (1978); Karpova et al. (2004); Mak & Xue (2000); Yuge et al. (2006); Zhao et al. (2007). For graph-set theory, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: SMART (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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810027868/su2169sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810027868/su2169Isup2.hkl
N,N-diethylhydroxylammine and terephthalic acid, in a molar ratio of 2:1, were mixed and dissolved in sufficient ethanol that by heating to 353 K a clear solution was obtained. The reaction system was then cooled slowly to RT, and crystals of the title compound were formed. They were collected and washed with ethanol.
The H-atoms were included in calculated positions and treated as riding atoms: O-H = 0.82 Å, N-H = 0.91 Å, C-H = 0.93, 0.96, and 0.97 Å for aromatic, methyl and methylene H-atoms, respectively, with Uiso(H) = k × Ueq(parent O, N or C atom), where k = 1.5 for hydroxyl and methyl H-atoms and = 1.2 for all others.
Supramolecular aggregate design is an active field of research and in a series of papers various supramolecular structures comprising benzene-dicarboxylic acids have been elucidated (Herbstein et al., 1978; Chatterjee et al., 2000; Karpova et al., 2004; Zhao et al., 2007). Some cases have been reported where the use of terephthalic acid has lead to the fomation of supramolecular architectures through hydrogen bonding (Mak et al., 2000; Yuge et al., 2006). The title compound was synthesized by the reaction of terephthalic acid with N,N-diethylhydroxylammine.
As shown in Fig. 1 two N,N-diethylhydroxylammonium (DTHA) cations are linked to the benzene-1,4-dicarboxylate anion (BDL), which is situated about an inversion center, by a special combination of O—H···O and N—H···O hydrogen bonds (Table 1), N1—H1···O1 and O3—H3···O2, which can be described by graph-set R22(7) [Bernstein, et al., 1995].
In the BDL anion the dihedral angle between phenyl ring and carboxylate group is 11.3 (3)/%. In general the BDLanion is almost coplanar with the mean plane through the C and N-atoms in the DTHA cations. The carboxylate groups are nearly perpendicular with the mean plane through the C and N-atoms of DTHA [dihedral angle of 81.0 (3)/%].
In the
a ribbon-like structure (Fig. 2 and Table 1), is fomed via C7—H7···O2i interactions [symmetry code (i) = 1 + x, y, z] .For similar supamolecular structures involving benzenedicarboxylic acids, see: Chatterjee et al. (2000); Herbstein & Kapon (1978); Karpova et al. (2004); Mak & Xue (2000); Yuge et al. (2006); Zhao et al. (2007). For graph-set theory, see: Bernstein et al. (1995).
Data collection: SMART (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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).2C4H12NO+·C8H4O42− | F(000) = 372.0 |
Mr = 344.40 | Dx = 1.221 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2185 reflections |
a = 6.507 (2) Å | θ = 2.1–25.0° |
b = 11.478 (4) Å | µ = 0.09 mm−1 |
c = 12.649 (5) Å | T = 273 K |
β = 97.380 (7)° | Block, colorless |
V = 936.9 (6) Å3 | 0.37 × 0.31 × 0.27 mm |
Z = 2 |
Bruker SMART CCD area-detector diffractometer | 1653 independent reflections |
Radiation source: fine-focus sealed tube | 1460 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
phi and ω scans | θmax = 25.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −7→7 |
Tmin = 0.954, Tmax = 0.969 | k = −10→13 |
4737 measured reflections | l = −14→15 |
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)] = 0.087 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.220 | H-atom parameters constrained |
S = 1.13 | w = 1/[σ2(Fo2) + (0.0871P)2 + 0.9891P] where P = (Fo2 + 2Fc2)/3 |
1653 reflections | (Δ/σ)max < 0.001 |
112 parameters | Δρmax = 0.66 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
2C4H12NO+·C8H4O42− | V = 936.9 (6) Å3 |
Mr = 344.40 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 6.507 (2) Å | µ = 0.09 mm−1 |
b = 11.478 (4) Å | T = 273 K |
c = 12.649 (5) Å | 0.37 × 0.31 × 0.27 mm |
β = 97.380 (7)° |
Bruker SMART CCD area-detector diffractometer | 1653 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 1460 reflections with I > 2σ(I) |
Tmin = 0.954, Tmax = 0.969 | Rint = 0.023 |
4737 measured reflections |
R[F2 > 2σ(F2)] = 0.087 | 0 restraints |
wR(F2) = 0.220 | H-atom parameters constrained |
S = 1.13 | Δρmax = 0.66 e Å−3 |
1653 reflections | Δρmin = −0.27 e Å−3 |
112 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
O1 | 0.4427 (3) | 0.3065 (2) | 0.0657 (2) | 0.0636 (8) | |
O2 | 0.1752 (4) | 0.2241 (2) | 0.1261 (2) | 0.0682 (8) | |
C1 | 0.2564 (5) | 0.3044 (3) | 0.0788 (3) | 0.0482 (8) | |
C2 | 0.1228 (4) | 0.4052 (3) | 0.0370 (2) | 0.0423 (8) | |
C3 | −0.0744 (5) | 0.4198 (3) | 0.0657 (3) | 0.0476 (8) | |
H3A | −0.1258 | 0.3653 | 0.1100 | 0.057* | |
C4 | 0.1945 (5) | 0.4869 (3) | −0.0298 (3) | 0.0469 (8) | |
H4 | 0.3257 | 0.4784 | −0.0505 | 0.056* | |
O3 | 0.4471 (5) | 0.0641 (2) | 0.1778 (3) | 0.0851 (10) | |
H3 | 0.3444 | 0.1052 | 0.1629 | 0.128* | |
N1 | 0.6262 (5) | 0.1284 (3) | 0.1645 (2) | 0.0573 (8) | |
H1 | 0.5847 | 0.1967 | 0.1320 | 0.069* | |
C5 | 0.6600 (11) | 0.2447 (5) | 0.3266 (4) | 0.110 (2) | |
H5A | 0.6382 | 0.3143 | 0.2846 | 0.164* | |
H5B | 0.7486 | 0.2617 | 0.3914 | 0.164* | |
H5C | 0.5292 | 0.2162 | 0.3433 | 0.164* | |
C6 | 0.7561 (8) | 0.1574 (4) | 0.2672 (3) | 0.0784 (13) | |
H6A | 0.7786 | 0.0874 | 0.3101 | 0.094* | |
H6B | 0.8901 | 0.1855 | 0.2525 | 0.094* | |
C7 | 0.7465 (6) | 0.0633 (4) | 0.0917 (3) | 0.0660 (11) | |
H7A | 0.6599 | 0.0520 | 0.0241 | 0.079* | |
H7B | 0.8644 | 0.1102 | 0.0783 | 0.079* | |
C8 | 0.8225 (8) | −0.0519 (4) | 0.1328 (4) | 0.0938 (16) | |
H8A | 0.9352 | −0.0411 | 0.1888 | 0.141* | |
H8B | 0.8694 | −0.0961 | 0.0761 | 0.141* | |
H8C | 0.7121 | −0.0930 | 0.1601 | 0.141* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0377 (13) | 0.0655 (17) | 0.0879 (19) | 0.0015 (11) | 0.0087 (12) | 0.0270 (14) |
O2 | 0.0510 (15) | 0.0536 (15) | 0.103 (2) | −0.0012 (12) | 0.0227 (14) | 0.0214 (15) |
C1 | 0.0434 (19) | 0.0489 (19) | 0.0519 (19) | −0.0079 (15) | 0.0049 (14) | −0.0012 (15) |
C2 | 0.0377 (16) | 0.0466 (18) | 0.0418 (16) | −0.0111 (13) | 0.0013 (13) | −0.0047 (14) |
C3 | 0.0415 (17) | 0.053 (2) | 0.0490 (18) | −0.0096 (15) | 0.0093 (14) | 0.0067 (15) |
C4 | 0.0342 (16) | 0.058 (2) | 0.0500 (18) | −0.0045 (14) | 0.0094 (13) | 0.0012 (16) |
O3 | 0.0704 (18) | 0.0558 (17) | 0.137 (3) | 0.0022 (14) | 0.0415 (19) | 0.0251 (18) |
N1 | 0.0621 (18) | 0.0444 (16) | 0.0636 (19) | −0.0028 (14) | 0.0010 (15) | 0.0095 (14) |
C5 | 0.167 (6) | 0.094 (4) | 0.070 (3) | 0.034 (4) | 0.024 (3) | −0.002 (3) |
C6 | 0.100 (3) | 0.071 (3) | 0.062 (2) | 0.019 (2) | 0.004 (2) | 0.010 (2) |
C7 | 0.058 (2) | 0.072 (3) | 0.066 (2) | −0.0090 (19) | 0.0050 (18) | 0.002 (2) |
C8 | 0.100 (4) | 0.073 (3) | 0.111 (4) | 0.015 (3) | 0.020 (3) | −0.006 (3) |
O1—C1 | 1.245 (4) | N1—H1 | 0.9100 |
O2—C1 | 1.252 (4) | C5—C6 | 1.442 (6) |
C1—C2 | 1.502 (5) | C5—H5A | 0.9600 |
C2—C4 | 1.384 (4) | C5—H5B | 0.9600 |
C2—C3 | 1.388 (4) | C5—H5C | 0.9600 |
C3—C4i | 1.368 (5) | C6—H6A | 0.9700 |
C3—H3A | 0.9300 | C6—H6B | 0.9700 |
C4—C3i | 1.368 (5) | C7—C8 | 1.481 (6) |
C4—H4 | 0.9300 | C7—H7A | 0.9700 |
O3—N1 | 1.408 (4) | C7—H7B | 0.9700 |
O3—H3 | 0.8200 | C8—H8A | 0.9600 |
N1—C7 | 1.484 (5) | C8—H8B | 0.9600 |
N1—C6 | 1.494 (5) | C8—H8C | 0.9600 |
O1—C1—O2 | 123.8 (3) | C6—C5—H5C | 109.5 |
O1—C1—C2 | 117.9 (3) | H5A—C5—H5C | 109.5 |
O2—C1—C2 | 118.3 (3) | H5B—C5—H5C | 109.5 |
C4—C2—C3 | 118.3 (3) | C5—C6—N1 | 111.9 (4) |
C4—C2—C1 | 120.8 (3) | C5—C6—H6A | 109.2 |
C3—C2—C1 | 120.9 (3) | N1—C6—H6A | 109.2 |
C4i—C3—C2 | 121.0 (3) | C5—C6—H6B | 109.2 |
C4i—C3—H3A | 119.5 | N1—C6—H6B | 109.2 |
C2—C3—H3A | 119.5 | H6A—C6—H6B | 107.9 |
C3i—C4—C2 | 120.7 (3) | C8—C7—N1 | 114.3 (4) |
C3i—C4—H4 | 119.7 | C8—C7—H7A | 108.7 |
C2—C4—H4 | 119.7 | N1—C7—H7A | 108.7 |
N1—O3—H3 | 109.5 | C8—C7—H7B | 108.7 |
O3—N1—C7 | 108.7 (3) | N1—C7—H7B | 108.7 |
O3—N1—C6 | 113.4 (3) | H7A—C7—H7B | 107.6 |
C7—N1—C6 | 111.6 (3) | C7—C8—H8A | 109.5 |
O3—N1—H1 | 107.7 | C7—C8—H8B | 109.5 |
C7—N1—H1 | 107.7 | H8A—C8—H8B | 109.5 |
C6—N1—H1 | 107.7 | C7—C8—H8C | 109.5 |
C6—C5—H5A | 109.5 | H8A—C8—H8C | 109.5 |
C6—C5—H5B | 109.5 | H8B—C8—H8C | 109.5 |
H5A—C5—H5B | 109.5 | ||
O1—C1—C2—C4 | 11.2 (5) | C3—C2—C4—C3i | 0.6 (5) |
O2—C1—C2—C4 | −169.9 (3) | C1—C2—C4—C3i | −178.4 (3) |
O1—C1—C2—C3 | −167.8 (3) | O3—N1—C6—C5 | −71.7 (5) |
O2—C1—C2—C3 | 11.1 (5) | C7—N1—C6—C5 | 165.2 (4) |
C4—C2—C3—C4i | −0.6 (5) | O3—N1—C7—C8 | −62.6 (4) |
C1—C2—C3—C4i | 178.4 (3) | C6—N1—C7—C8 | 63.1 (5) |
Symmetry code: (i) −x, −y+1, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O2 | 0.82 | 1.78 | 2.576 (5) | 164 |
N1—H1···O1 | 0.91 | 1.72 | 2.605 (5) | 164 |
C7—H7b···O2ii | 0.97 | 2.42 | 3.327 (5) | 156 |
Symmetry code: (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | 2C4H12NO+·C8H4O42− |
Mr | 344.40 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 273 |
a, b, c (Å) | 6.507 (2), 11.478 (4), 12.649 (5) |
β (°) | 97.380 (7) |
V (Å3) | 936.9 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.37 × 0.31 × 0.27 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.954, 0.969 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4737, 1653, 1460 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.087, 0.220, 1.13 |
No. of reflections | 1653 |
No. of parameters | 112 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.66, −0.27 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O2 | 0.82 | 1.78 | 2.576 (5) | 164 |
N1—H1···O1 | 0.91 | 1.72 | 2.605 (5) | 164 |
C7—H7b···O2i | 0.97 | 2.42 | 3.327 (5) | 156 |
Symmetry code: (i) x+1, y, z. |
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Supramolecular aggregate design is an active field of research and in a series of papers various supramolecular structures comprising benzene-dicarboxylic acids have been elucidated (Herbstein et al., 1978; Chatterjee et al., 2000; Karpova et al., 2004; Zhao et al., 2007). Some cases have been reported where the use of terephthalic acid has lead to the fomation of supramolecular architectures through hydrogen bonding (Mak et al., 2000; Yuge et al., 2006). The title compound was synthesized by the reaction of terephthalic acid with N,N-diethylhydroxylammine.
As shown in Fig. 1 two N,N-diethylhydroxylammonium (DTHA) cations are linked to the benzene-1,4-dicarboxylate anion (BDL), which is situated about an inversion center, by a special combination of O—H···O and N—H···O hydrogen bonds (Table 1), N1—H1···O1 and O3—H3···O2, which can be described by graph-set R22(7) [Bernstein, et al., 1995].
In the BDL anion the dihedral angle between phenyl ring and carboxylate group is 11.3 (3)/%. In general the BDLanion is almost coplanar with the mean plane through the C and N-atoms in the DTHA cations. The carboxylate groups are nearly perpendicular with the mean plane through the C and N-atoms of DTHA [dihedral angle of 81.0 (3)/%].
In the crystal structure a ribbon-like structure (Fig. 2 and Table 1), is fomed via C7—H7···O2i interactions [symmetry code (i) = 1 + x, y, z] .