organic compounds
2-Hydroxyethanaminium 2,4-dinitrophenolate hemihydrate
aSchool of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People's Republic of China
*Correspondence e-mail: gfwref@sina.cn
In the title salt, C2H8NO+·C6H3N2O5−·0.5H2O, the anions, cations and water molecules are linked via N—H⋯O and O—H⋯O hydrogen bonds, forming a three-dimensionl network.
Related literature
For comparable structures, see: Goddard et al. (2002); Iwasaki & Kawano (1977); Kunnert et al. (1995); Rais & Bergman (2004); Sieler et al. (1994); Yuan et al. (2005).
Experimental
Crystal data
|
Data collection
|
Refinement
|
Data collection: RAPID-AUTO (Rigaku/MSC, 2004); cell RAPID-AUTO; data reduction: RAPID-AUTO; 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/S1600536810031983/bt5319sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810031983/bt5319Isup2.hkl
Admixture of ethanolamine, DNP and water in the molar ratio of 2:1:1 were heated to a temperature where clear solutions resulted. The cystals of (I) were formed by making the resulting solutions standing overnight at 293k.
The H atoms bonded to N and O were taken from a difference fourier map, and were refined. Others were placed in calculated positions and allowed to ride on their parent atoms at distances of 0.95 (phenyl), 0.99 (methylene), with Uiso(H) values 1.2 times Ueq of the parent atoms.
As shown in Fig. 1, compound (I) consists of two crystallographically independent ionic O+—H···O- hydrogen bonding (Table 2) pairs of ethanolammonium DNPL (A and B for containing O1 and O6, respectively), and one water molecule. The ion pairs of A and B are asociated via the water molecule by a N—H···O hydrogen bonds (Table 2).
Following analysis shows the the feature of quinoic-phenolic resonance of DNPL in ionic pairs A. The C1—C6 and C1—C2 bond lengths are extremely longer than the normal length (1.38 Å), and the C3—C4 bond length is abviously longer than the normal length. The C2—C3 bond length is the shortest one in DNPL, and is slightly shorter than the normal one (Table 1). The N1—C6 [1.4416 (16) Å] and N2—C4 [1.4478 (17) Å] bond lengths are obviously shorter than that observed in 2,4-dinitrophenol [1.484 (5) Å, Iwasaki & Kawano, 1977]. The C1—O1 bond length [1.2671 (16) Å] is shorter than that of
1.317 (4)Å for a naphtholate (Yuan et al., 2005), 1.283 (2)–1.331 (6)Å for in different compounds (Sieler et al., 1994; Kunnert et al., 1995; Goddard et al., 2002; Rais et al., 2004).The nitro groups of the DNPL at C2 and C4 are twisted relatively to the aromatic ring with dihedral angles lesser than about 4°, which are indicated by torsion angles in Table 2. This twist of the nitro group relative to the benzene ring is a result of the participation of nitro O atoms in O—H···O hydrogen bonds (Table 2).
The N—H···O and O—H···O hydrogen bonding in the structure leads to a three-dimensional hydrogen-bonded netwerk (Table 2). As shown in Fig. 2, the water molecule acts as well a hydrogen-bond donor for DNPL anion and ethanolammonium cation. Furthermore, the DNPL anions are linked to ethanolammonium cations via various hydrogen bonds of N—H···O (Table 2 & Fig. 2).
For comparable structures, see: Goddard et al. (2002); Iwasaki & Kawano (1977); Kunnert et al. (1995); Rais & Bergman (2004); Sieler et al. (1994); Yuan et al. (2005).
Data collection: RAPID-AUTO (Rigaku/MSC, 2004); cell
RAPID-AUTO (Rigaku/MSC, 2004); data reduction: RAPID-AUTO (Rigaku/MSC, 2004); 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).Fig. 1. The cell unit of (I) with atom labels, showing 40% probability displacement ellipsoids. Hydrogen bonds are illustrated as thin lines. | |
Fig. 2. A diagram of crystal packing viewed down along the b axis. Hydrogen bonds are drawn as dashed lines. |
C2H8NO+·C6H3N2O5−·0.5H2O | F(000) = 1064 |
Mr = 254.20 | Dx = 1.540 Mg m−3 |
Orthorhombic, Pca21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2ac | Cell parameters from 20146 reflections |
a = 24.5688 (4) Å | θ = 3.1–27.5° |
b = 10.5945 (2) Å | µ = 0.14 mm−1 |
c = 8.4238 (2) Å | T = 153 K |
V = 2192.67 (8) Å3 | Prism, yellow |
Z = 8 | 0.56 × 0.45 × 0.33 mm |
Rigaku R-AXIS RAPID diffractometer | 2646 reflections with I > 2σ(I) |
Radiation source: Rotating Anode | Rint = 0.018 |
Graphite monochromator | θmax = 27.5°, θmin = 3.1° |
ω scans | h = −31→31 |
20722 measured reflections | k = −13→13 |
2686 independent reflections | l = −10→10 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.024 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.066 | w = 1/[σ2(Fo2) + (0.0506P)2 + 0.256P] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max = 0.001 |
2686 reflections | Δρmax = 0.25 e Å−3 |
357 parameters | Δρmin = −0.17 e Å−3 |
1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0213 (13) |
C2H8NO+·C6H3N2O5−·0.5H2O | V = 2192.67 (8) Å3 |
Mr = 254.20 | Z = 8 |
Orthorhombic, Pca21 | Mo Kα radiation |
a = 24.5688 (4) Å | µ = 0.14 mm−1 |
b = 10.5945 (2) Å | T = 153 K |
c = 8.4238 (2) Å | 0.56 × 0.45 × 0.33 mm |
Rigaku R-AXIS RAPID diffractometer | 2646 reflections with I > 2σ(I) |
20722 measured reflections | Rint = 0.018 |
2686 independent reflections |
R[F2 > 2σ(F2)] = 0.024 | 1 restraint |
wR(F2) = 0.066 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | Δρmax = 0.25 e Å−3 |
2686 reflections | Δρmin = −0.17 e Å−3 |
357 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 | ||
O1 | 0.40970 (4) | 0.16257 (9) | 0.70708 (14) | 0.0246 (2) | |
O2 | 0.15648 (4) | 0.16118 (13) | 0.7433 (2) | 0.0436 (4) | |
O3 | 0.17398 (5) | 0.31833 (12) | 0.89817 (19) | 0.0390 (3) | |
O4 | 0.35318 (5) | 0.43069 (14) | 1.0234 (2) | 0.0489 (4) | |
O5 | 0.42268 (4) | 0.35022 (10) | 0.91162 (16) | 0.0300 (3) | |
O6 | 0.38672 (4) | 0.63686 (10) | 0.71654 (14) | 0.0262 (2) | |
O7 | 0.13452 (4) | 0.69048 (12) | 0.70476 (19) | 0.0384 (3) | |
O8 | 0.15347 (5) | 0.83799 (13) | 0.87468 (18) | 0.0407 (3) | |
O9 | 0.33436 (4) | 0.93189 (10) | 1.00421 (14) | 0.0292 (2) | |
O10 | 0.40336 (4) | 0.83871 (10) | 0.89816 (14) | 0.0265 (2) | |
O11 | 0.46306 (4) | 0.03331 (10) | 0.49735 (13) | 0.0236 (2) | |
O12 | 0.45349 (4) | 0.58299 (10) | 0.47171 (13) | 0.0220 (2) | |
N1 | 0.37306 (4) | 0.35618 (10) | 0.92905 (16) | 0.0211 (2) | |
N2 | 0.18870 (5) | 0.23265 (12) | 0.81025 (19) | 0.0276 (3) | |
N3 | 0.35365 (5) | 0.85094 (10) | 0.91370 (14) | 0.0194 (2) | |
N4 | 0.16743 (5) | 0.75211 (13) | 0.78413 (18) | 0.0270 (3) | |
N5 | 0.56485 (5) | 0.01705 (10) | 0.68611 (15) | 0.0185 (2) | |
N6 | 0.53325 (5) | 0.39558 (11) | 0.44028 (16) | 0.0218 (2) | |
C1 | 0.35954 (5) | 0.17880 (12) | 0.73496 (16) | 0.0175 (2) | |
C2 | 0.31902 (6) | 0.09935 (12) | 0.66134 (18) | 0.0224 (3) | |
H2 | 0.3308 | 0.0330 | 0.5938 | 0.027* | |
C3 | 0.26441 (6) | 0.11540 (13) | 0.68459 (19) | 0.0236 (3) | |
H3 | 0.2390 | 0.0615 | 0.6335 | 0.028* | |
C4 | 0.24637 (6) | 0.21292 (11) | 0.78519 (17) | 0.0210 (3) | |
C5 | 0.28234 (5) | 0.29052 (12) | 0.86297 (18) | 0.0202 (3) | |
H5 | 0.2694 | 0.3552 | 0.9314 | 0.024* | |
C6 | 0.33790 (5) | 0.27319 (12) | 0.84031 (16) | 0.0176 (3) | |
C7 | 0.33707 (5) | 0.66684 (12) | 0.73307 (15) | 0.0186 (3) | |
C8 | 0.29498 (6) | 0.59359 (13) | 0.65700 (19) | 0.0243 (3) | |
H8 | 0.3054 | 0.5241 | 0.5926 | 0.029* | |
C9 | 0.24074 (6) | 0.61971 (12) | 0.67346 (19) | 0.0249 (3) | |
H9 | 0.2143 | 0.5687 | 0.6220 | 0.030* | |
C10 | 0.22461 (5) | 0.72307 (13) | 0.76756 (18) | 0.0217 (3) | |
C11 | 0.26181 (5) | 0.79730 (12) | 0.84427 (16) | 0.0194 (3) | |
H11 | 0.2502 | 0.8663 | 0.9078 | 0.023* | |
C12 | 0.31712 (5) | 0.77025 (12) | 0.82799 (16) | 0.0180 (3) | |
C13 | 0.54204 (6) | −0.08272 (12) | 0.58103 (18) | 0.0209 (3) | |
H13A | 0.5540 | −0.1666 | 0.6191 | 0.025* | |
H13B | 0.5561 | −0.0711 | 0.4718 | 0.025* | |
C14 | 0.48060 (6) | −0.07767 (13) | 0.57902 (19) | 0.0233 (3) | |
H14A | 0.4660 | −0.1535 | 0.5251 | 0.028* | |
H14B | 0.4666 | −0.0767 | 0.6892 | 0.028* | |
C15 | 0.48229 (6) | 0.39280 (14) | 0.34614 (19) | 0.0273 (3) | |
H15A | 0.4720 | 0.3040 | 0.3251 | 0.033* | |
H15B | 0.4886 | 0.4346 | 0.2427 | 0.033* | |
C16 | 0.43622 (5) | 0.45829 (13) | 0.4314 (2) | 0.0246 (3) | |
H16A | 0.4037 | 0.4621 | 0.3621 | 0.029* | |
H16B | 0.4265 | 0.4110 | 0.5288 | 0.029* | |
O13 | 0.51234 (4) | 0.26120 (9) | 0.71903 (13) | 0.0197 (2) | |
H0A | 0.4788 (9) | 0.249 (2) | 0.732 (3) | 0.036 (5)* | |
H0B | 0.5255 (8) | 0.3027 (19) | 0.797 (3) | 0.029 (5)* | |
H5A | 0.5523 (9) | 0.088 (2) | 0.673 (3) | 0.037 (6)* | |
H5B | 0.6013 (9) | 0.0271 (17) | 0.667 (3) | 0.031 (5)* | |
H5C | 0.5571 (8) | −0.0081 (19) | 0.788 (3) | 0.028 (5)* | |
H6A | 0.5286 (8) | 0.3495 (18) | 0.533 (3) | 0.024 (4)* | |
H6B | 0.5606 (10) | 0.366 (2) | 0.386 (3) | 0.041 (6)* | |
H6C | 0.5420 (8) | 0.4771 (19) | 0.461 (3) | 0.028 (5)* | |
H11O | 0.4426 (10) | 0.078 (2) | 0.555 (4) | 0.042 (6)* | |
H12O | 0.4350 (10) | 0.610 (2) | 0.537 (4) | 0.044 (7)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0164 (4) | 0.0285 (5) | 0.0289 (5) | 0.0015 (3) | 0.0016 (4) | −0.0118 (4) |
O2 | 0.0166 (5) | 0.0491 (7) | 0.0652 (10) | −0.0100 (5) | −0.0046 (6) | −0.0124 (7) |
O3 | 0.0200 (5) | 0.0422 (6) | 0.0548 (8) | 0.0079 (4) | 0.0030 (5) | −0.0084 (6) |
O4 | 0.0238 (5) | 0.0577 (8) | 0.0653 (9) | 0.0005 (5) | 0.0029 (6) | −0.0452 (8) |
O5 | 0.0154 (4) | 0.0274 (5) | 0.0472 (7) | −0.0029 (4) | 0.0007 (5) | −0.0153 (5) |
O6 | 0.0180 (4) | 0.0364 (5) | 0.0242 (5) | 0.0073 (4) | −0.0034 (4) | −0.0102 (5) |
O7 | 0.0173 (5) | 0.0440 (6) | 0.0539 (8) | −0.0048 (4) | −0.0075 (5) | −0.0008 (7) |
O8 | 0.0223 (5) | 0.0569 (7) | 0.0429 (7) | 0.0128 (5) | 0.0000 (5) | −0.0094 (7) |
O9 | 0.0240 (5) | 0.0303 (5) | 0.0333 (6) | 0.0067 (4) | −0.0053 (5) | −0.0156 (5) |
O10 | 0.0158 (4) | 0.0313 (5) | 0.0326 (6) | −0.0033 (4) | 0.0014 (4) | −0.0080 (5) |
O11 | 0.0221 (4) | 0.0288 (5) | 0.0199 (5) | 0.0050 (4) | 0.0004 (4) | −0.0066 (4) |
O12 | 0.0188 (4) | 0.0221 (5) | 0.0250 (5) | −0.0002 (4) | 0.0048 (4) | −0.0013 (4) |
N1 | 0.0164 (5) | 0.0197 (5) | 0.0274 (6) | 0.0004 (4) | 0.0000 (5) | −0.0073 (5) |
N2 | 0.0151 (5) | 0.0309 (6) | 0.0368 (7) | −0.0006 (4) | −0.0012 (5) | −0.0004 (6) |
N3 | 0.0184 (5) | 0.0197 (5) | 0.0199 (6) | 0.0016 (4) | −0.0014 (5) | −0.0019 (4) |
N4 | 0.0160 (5) | 0.0330 (6) | 0.0319 (7) | 0.0020 (5) | −0.0023 (5) | 0.0046 (5) |
N5 | 0.0168 (5) | 0.0181 (5) | 0.0206 (6) | 0.0016 (4) | 0.0013 (4) | 0.0027 (4) |
N6 | 0.0210 (5) | 0.0191 (5) | 0.0253 (6) | 0.0023 (4) | 0.0065 (5) | 0.0015 (5) |
C1 | 0.0167 (5) | 0.0178 (5) | 0.0178 (6) | 0.0003 (4) | 0.0000 (5) | −0.0013 (5) |
C2 | 0.0221 (6) | 0.0198 (6) | 0.0253 (7) | −0.0014 (5) | −0.0010 (5) | −0.0060 (5) |
C3 | 0.0206 (6) | 0.0226 (6) | 0.0275 (7) | −0.0052 (5) | −0.0036 (6) | −0.0027 (6) |
C4 | 0.0129 (5) | 0.0231 (5) | 0.0269 (7) | −0.0009 (5) | 0.0001 (5) | 0.0014 (5) |
C5 | 0.0159 (6) | 0.0204 (5) | 0.0242 (7) | 0.0016 (4) | 0.0007 (5) | −0.0024 (5) |
C6 | 0.0155 (5) | 0.0173 (5) | 0.0201 (6) | −0.0015 (4) | 0.0000 (5) | −0.0028 (5) |
C7 | 0.0182 (6) | 0.0218 (6) | 0.0160 (6) | 0.0028 (5) | −0.0025 (5) | −0.0009 (5) |
C8 | 0.0242 (7) | 0.0217 (6) | 0.0269 (7) | 0.0024 (5) | −0.0064 (6) | −0.0065 (5) |
C9 | 0.0223 (7) | 0.0219 (5) | 0.0304 (8) | −0.0016 (5) | −0.0080 (6) | −0.0019 (6) |
C10 | 0.0155 (6) | 0.0250 (6) | 0.0245 (7) | 0.0014 (5) | −0.0021 (5) | 0.0032 (5) |
C11 | 0.0167 (6) | 0.0221 (5) | 0.0195 (6) | 0.0037 (4) | −0.0009 (5) | 0.0001 (5) |
C12 | 0.0162 (6) | 0.0197 (5) | 0.0179 (6) | 0.0008 (4) | −0.0018 (5) | −0.0012 (5) |
C13 | 0.0242 (6) | 0.0182 (5) | 0.0203 (6) | 0.0026 (5) | 0.0045 (5) | −0.0009 (5) |
C14 | 0.0230 (6) | 0.0238 (6) | 0.0231 (7) | −0.0047 (5) | 0.0040 (5) | −0.0030 (6) |
C15 | 0.0287 (7) | 0.0279 (6) | 0.0253 (7) | 0.0012 (5) | 0.0016 (6) | −0.0055 (6) |
C16 | 0.0187 (6) | 0.0240 (6) | 0.0310 (8) | −0.0036 (5) | 0.0015 (5) | −0.0012 (6) |
O13 | 0.0156 (4) | 0.0214 (4) | 0.0220 (5) | −0.0015 (3) | 0.0009 (4) | −0.0011 (4) |
O1—C1 | 1.2661 (16) | C2—C3 | 1.3665 (19) |
O2—N2 | 1.2322 (18) | C2—H2 | 0.9500 |
O3—N2 | 1.2261 (19) | C3—C4 | 1.408 (2) |
O4—N1 | 1.2223 (17) | C3—H3 | 0.9500 |
O5—N1 | 1.2293 (15) | C4—C5 | 1.3734 (19) |
O6—C7 | 1.2683 (16) | C5—C6 | 1.3905 (17) |
O7—N4 | 1.2357 (19) | C5—H5 | 0.9500 |
O8—N4 | 1.236 (2) | C7—C12 | 1.4421 (18) |
O9—N3 | 1.2417 (15) | C7—C8 | 1.4429 (18) |
O10—N3 | 1.2351 (15) | C8—C9 | 1.3680 (19) |
O11—C14 | 1.4288 (17) | C8—H8 | 0.9500 |
O11—H11O | 0.84 (3) | C9—C10 | 1.409 (2) |
O12—C16 | 1.4285 (17) | C9—H9 | 0.9500 |
O12—H12O | 0.77 (3) | C10—C11 | 1.3681 (18) |
N1—C6 | 1.4416 (16) | C11—C12 | 1.3955 (17) |
N2—C4 | 1.4478 (17) | C11—H11 | 0.9500 |
N3—C12 | 1.4345 (17) | C13—C14 | 1.5105 (19) |
N4—C10 | 1.4449 (16) | C13—H13A | 0.9900 |
N5—C13 | 1.4882 (18) | C13—H13B | 0.9900 |
N5—H5A | 0.82 (2) | C14—H14A | 0.9900 |
N5—H5B | 0.92 (2) | C14—H14B | 0.9900 |
N5—H5C | 0.92 (2) | C15—C16 | 1.510 (2) |
N6—C15 | 1.4824 (19) | C15—H15A | 0.9900 |
N6—H6A | 0.93 (2) | C15—H15B | 0.9900 |
N6—H6B | 0.87 (3) | C16—H16A | 0.9900 |
N6—H6C | 0.91 (2) | C16—H16B | 0.9900 |
C1—C6 | 1.4388 (18) | O13—H0A | 0.84 (2) |
C1—C2 | 1.4438 (18) | O13—H0B | 0.85 (2) |
C14—O11—H11O | 111.2 (18) | O6—C7—C12 | 125.31 (12) |
C16—O12—H12O | 109.9 (18) | O6—C7—C8 | 120.39 (12) |
O4—N1—O5 | 120.48 (12) | C12—C7—C8 | 114.28 (11) |
O4—N1—C6 | 119.45 (11) | C9—C8—C7 | 122.97 (13) |
O5—N1—C6 | 120.06 (11) | C9—C8—H8 | 118.5 |
O3—N2—O2 | 122.82 (13) | C7—C8—H8 | 118.5 |
O3—N2—C4 | 118.92 (12) | C8—C9—C10 | 119.23 (12) |
O2—N2—C4 | 118.25 (13) | C8—C9—H9 | 120.4 |
O10—N3—O9 | 121.00 (11) | C10—C9—H9 | 120.4 |
O10—N3—C12 | 120.19 (11) | C11—C10—C9 | 121.64 (12) |
O9—N3—C12 | 118.81 (11) | C11—C10—N4 | 118.79 (12) |
O7—N4—O8 | 122.78 (13) | C9—C10—N4 | 119.57 (13) |
O7—N4—C10 | 118.13 (13) | C10—C11—C12 | 119.09 (12) |
O8—N4—C10 | 119.08 (13) | C10—C11—H11 | 120.5 |
C13—N5—H5A | 115.5 (17) | C12—C11—H11 | 120.5 |
C13—N5—H5B | 110.1 (13) | C11—C12—N3 | 115.94 (12) |
H5A—N5—H5B | 103.6 (19) | C11—C12—C7 | 122.78 (12) |
C13—N5—H5C | 105.7 (13) | N3—C12—C7 | 121.28 (11) |
H5A—N5—H5C | 108 (2) | N5—C13—C14 | 110.97 (11) |
H5B—N5—H5C | 113.8 (18) | N5—C13—H13A | 109.4 |
C15—N6—H6A | 109.6 (12) | C14—C13—H13A | 109.4 |
C15—N6—H6B | 111.3 (16) | N5—C13—H13B | 109.4 |
H6A—N6—H6B | 110 (2) | C14—C13—H13B | 109.4 |
C15—N6—H6C | 108.8 (13) | H13A—C13—H13B | 108.0 |
H6A—N6—H6C | 111.6 (19) | O11—C14—C13 | 109.63 (11) |
H6B—N6—H6C | 105 (2) | O11—C14—H14A | 109.7 |
O1—C1—C6 | 124.65 (12) | C13—C14—H14A | 109.7 |
O1—C1—C2 | 120.82 (12) | O11—C14—H14B | 109.7 |
C6—C1—C2 | 114.53 (11) | C13—C14—H14B | 109.7 |
C3—C2—C1 | 122.89 (12) | H14A—C14—H14B | 108.2 |
C3—C2—H2 | 118.6 | N6—C15—C16 | 111.68 (13) |
C1—C2—H2 | 118.6 | N6—C15—H15A | 109.3 |
C2—C3—C4 | 119.12 (12) | C16—C15—H15A | 109.3 |
C2—C3—H3 | 120.4 | N6—C15—H15B | 109.3 |
C4—C3—H3 | 120.4 | C16—C15—H15B | 109.3 |
C5—C4—C3 | 121.60 (12) | H15A—C15—H15B | 107.9 |
C5—C4—N2 | 118.28 (12) | O12—C16—C15 | 108.38 (11) |
C3—C4—N2 | 120.12 (12) | O12—C16—H16A | 110.0 |
C4—C5—C6 | 119.15 (12) | C15—C16—H16A | 110.0 |
C4—C5—H5 | 120.4 | O12—C16—H16B | 110.0 |
C6—C5—H5 | 120.4 | C15—C16—H16B | 110.0 |
C5—C6—C1 | 122.63 (12) | H16A—C16—H16B | 108.4 |
C5—C6—N1 | 115.89 (11) | H0A—O13—H0B | 111 (2) |
C1—C6—N1 | 121.48 (11) | ||
O1—C1—C2—C3 | −178.24 (14) | C12—C7—C8—C9 | −0.1 (2) |
C6—C1—C2—C3 | 2.5 (2) | C7—C8—C9—C10 | 0.5 (2) |
C1—C2—C3—C4 | −0.4 (2) | C8—C9—C10—C11 | −0.7 (2) |
C2—C3—C4—C5 | −1.4 (2) | C8—C9—C10—N4 | 179.33 (14) |
C2—C3—C4—N2 | 179.31 (13) | O7—N4—C10—C11 | 174.57 (14) |
O3—N2—C4—C5 | 0.8 (2) | O8—N4—C10—C11 | −4.5 (2) |
O2—N2—C4—C5 | −178.37 (15) | O7—N4—C10—C9 | −5.4 (2) |
O3—N2—C4—C3 | −179.87 (15) | O8—N4—C10—C9 | 175.54 (14) |
O2—N2—C4—C3 | 1.0 (2) | C9—C10—C11—C12 | 0.4 (2) |
C3—C4—C5—C6 | 0.7 (2) | N4—C10—C11—C12 | −179.61 (12) |
N2—C4—C5—C6 | −179.92 (13) | C10—C11—C12—N3 | −179.11 (12) |
C4—C5—C6—C1 | 1.6 (2) | C10—C11—C12—C7 | 0.1 (2) |
C4—C5—C6—N1 | −178.49 (12) | O10—N3—C12—C11 | −175.46 (12) |
O1—C1—C6—C5 | 177.64 (13) | O9—N3—C12—C11 | 5.19 (18) |
C2—C1—C6—C5 | −3.1 (2) | O10—N3—C12—C7 | 5.35 (19) |
O1—C1—C6—N1 | −2.2 (2) | O9—N3—C12—C7 | −174.00 (13) |
C2—C1—C6—N1 | 177.00 (12) | O6—C7—C12—C11 | −178.70 (13) |
O4—N1—C6—C5 | 3.9 (2) | C8—C7—C12—C11 | −0.2 (2) |
O5—N1—C6—C5 | −177.39 (13) | O6—C7—C12—N3 | 0.4 (2) |
O4—N1—C6—C1 | −176.23 (15) | C8—C7—C12—N3 | 178.91 (12) |
O5—N1—C6—C1 | 2.5 (2) | N5—C13—C14—O11 | 69.73 (14) |
O6—C7—C8—C9 | 178.49 (14) | N6—C15—C16—O12 | 54.43 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
O11—H11O···O1 | 0.84 (3) | 1.76 (3) | 2.5914 (14) | 168 (3) |
O12—H12O···O6 | 0.77 (3) | 1.94 (3) | 2.6963 (16) | 166 (3) |
O13—H0A···O1 | 0.84 (2) | 1.94 (2) | 2.7315 (13) | 156 (2) |
O13—H0A···O5 | 0.84 (2) | 2.31 (2) | 2.8938 (15) | 127 (2) |
O13—H0B···O12i | 0.85 (2) | 1.97 (2) | 2.8214 (15) | 171 (2) |
N5—H5B···O9ii | 0.92 (2) | 2.13 (2) | 2.9620 (15) | 150 (2) |
N5—H5C···O11iii | 0.92 (2) | 1.85 (2) | 2.7620 (16) | 171 (2) |
N5—H5A···O13 | 0.82 (2) | 2.11 (2) | 2.9038 (14) | 161 (2) |
N6—H6C···O5ii | 0.91 (2) | 2.07 (2) | 2.9127 (16) | 155 (2) |
N6—H6B···O6ii | 0.87 (3) | 1.93 (3) | 2.7453 (17) | 155 (2) |
N6—H6B···O10ii | 0.87 (3) | 2.34 (2) | 2.9517 (16) | 127 (2) |
N6—H6A···O13 | 0.93 (2) | 1.87 (2) | 2.7937 (17) | 175 (2) |
Symmetry codes: (i) −x+1, −y+1, z+1/2; (ii) −x+1, −y+1, z−1/2; (iii) −x+1, −y, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C2H8NO+·C6H3N2O5−·0.5H2O |
Mr | 254.20 |
Crystal system, space group | Orthorhombic, Pca21 |
Temperature (K) | 153 |
a, b, c (Å) | 24.5688 (4), 10.5945 (2), 8.4238 (2) |
V (Å3) | 2192.67 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.14 |
Crystal size (mm) | 0.56 × 0.45 × 0.33 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20722, 2686, 2646 |
Rint | 0.018 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.024, 0.066, 1.00 |
No. of reflections | 2686 |
No. of parameters | 357 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.17 |
Computer programs: RAPID-AUTO (Rigaku/MSC, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O11—H11O···O1 | 0.84 (3) | 1.76 (3) | 2.5914 (14) | 168 (3) |
O12—H12O···O6 | 0.77 (3) | 1.94 (3) | 2.6963 (16) | 166 (3) |
O13—H0A···O1 | 0.84 (2) | 1.94 (2) | 2.7315 (13) | 156 (2) |
O13—H0A···O5 | 0.84 (2) | 2.31 (2) | 2.8938 (15) | 127 (2) |
O13—H0B···O12i | 0.85 (2) | 1.97 (2) | 2.8214 (15) | 171 (2) |
N5—H5B···O9ii | 0.92 (2) | 2.13 (2) | 2.9620 (15) | 150 (2) |
N5—H5C···O11iii | 0.92 (2) | 1.85 (2) | 2.7620 (16) | 171 (2) |
N5—H5A···O13 | 0.82 (2) | 2.11 (2) | 2.9038 (14) | 161 (2) |
N6—H6C···O5ii | 0.91 (2) | 2.07 (2) | 2.9127 (16) | 155 (2) |
N6—H6B···O6ii | 0.87 (3) | 1.93 (3) | 2.7453 (17) | 155 (2) |
N6—H6B···O10ii | 0.87 (3) | 2.34 (2) | 2.9517 (16) | 127 (2) |
N6—H6A···O13 | 0.93 (2) | 1.87 (2) | 2.7937 (17) | 175 (2) |
Symmetry codes: (i) −x+1, −y+1, z+1/2; (ii) −x+1, −y+1, z−1/2; (iii) −x+1, −y, z+1/2. |
References
Goddard, R., Herzog, H. M. & Reetz, M. T. (2002). Tetrahedron, 58, 7847–7853. Web of Science CSD CrossRef CAS Google Scholar
Iwasaki, F. & Kawano, Y. (1977). Acta Cryst. B33, 2455–2459. CSD CrossRef CAS IUCr Journals Web of Science Google Scholar
Kunnert, M., Zahn, G. & Sieler, J. (1995). Z. Anorg. Allg. Chem. 621, 1597–1582. CSD CrossRef Web of Science Google Scholar
Rais, D. & Bergman, R. G. (2004). Chem. Eur. J. 10, 3970–3974. Web of Science CrossRef PubMed CAS Google Scholar
Rigaku/MSC (2004). RAPID-AUTO. Rigaku/MSC, The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sieler, J., Pink, M. & Zahn, G. (1994). Z. Anorg. Allg. Chem. 620, 743–746. CSD CrossRef CAS Web of Science Google Scholar
Yuan, J.-X., Shen, Z.-L., Li, L., Song, X.-Y. & Jin, Z.-M. (2005). Acta Cryst. E61, o3712–o3714. Web of Science CSD CrossRef IUCr Journals Google Scholar
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.
As shown in Fig. 1, compound (I) consists of two crystallographically independent ionic O+—H···O- hydrogen bonding (Table 2) pairs of ethanolammonium DNPL (A and B for containing O1 and O6, respectively), and one water molecule. The ion pairs of A and B are asociated via the water molecule by a N—H···O hydrogen bonds (Table 2).
Following analysis shows the the feature of quinoic-phenolic resonance of DNPL in ionic pairs A. The C1—C6 and C1—C2 bond lengths are extremely longer than the normal length (1.38 Å), and the C3—C4 bond length is abviously longer than the normal length. The C2—C3 bond length is the shortest one in DNPL, and is slightly shorter than the normal one (Table 1). The N1—C6 [1.4416 (16) Å] and N2—C4 [1.4478 (17) Å] bond lengths are obviously shorter than that observed in 2,4-dinitrophenol [1.484 (5) Å, Iwasaki & Kawano, 1977]. The C1—O1 bond length [1.2671 (16) Å] is shorter than that of phenolates, 1.317 (4)Å for a naphtholate (Yuan et al., 2005), 1.283 (2)–1.331 (6)Å for phenolates in different compounds (Sieler et al., 1994; Kunnert et al., 1995; Goddard et al., 2002; Rais et al., 2004).
The nitro groups of the DNPL at C2 and C4 are twisted relatively to the aromatic ring with dihedral angles lesser than about 4°, which are indicated by torsion angles in Table 2. This twist of the nitro group relative to the benzene ring is a result of the participation of nitro O atoms in O—H···O hydrogen bonds (Table 2).
The N—H···O and O—H···O hydrogen bonding in the structure leads to a three-dimensional hydrogen-bonded netwerk (Table 2). As shown in Fig. 2, the water molecule acts as well a hydrogen-bond donor for DNPL anion and ethanolammonium cation. Furthermore, the DNPL anions are linked to ethanolammonium cations via various hydrogen bonds of N—H···O (Table 2 & Fig. 2).