organic compounds
Bis(2,6-diaminopyridinium) hydrogen phthalate nitrate monohydrate
aFaculty of Chemistry, Islamic Azad University-North Tehran Branch, Tehran, Iran, and bDepartment of Chemistry, Ferdowsi University of Mashhad, Mashhad 91779, Iran
*Correspondence e-mail: mehrdad_pourayoubi@yahoo.com
The title hydrated salt, 2C5H8N3+·C8H5O4−·NO3−·H2O, was obtained fortuitously from the reaction between 2,6-diaminopyridine, phthalic acid and Co(NO3)2·6H2O at 343 K. The consists of two crystallographically independent 2,6-diaminopyridinium cations, a hydrogen phthalate anion, a nitrate ion and a water molecule of crystallization which in the are linked by intermolecular O—H⋯O and N—H⋯O hydrogen bonds into a three-dimensional network. In the hydrogen phthalate anion, there is a very strong intramolecular O—H⋯O hydrogen bond.
Related literature
For a related structure, see: Al-Dajani et al. (2009). For a study of strong O—H⋯O hydrogen bonds, see: Gilli et al. (1994).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810004150/lh2987sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810004150/lh2987Isup2.hkl
The title compound was prepared according to the following procedure: A solution of phthalic acid (0.83 g, 5 mmol) in H2O (20 ml) was added to a solution of 2,6-diaminopyridine (0.545 g, 5 mmol) in H2O (5 ml) and stirred. To this solution, a solution of Co(NO3)2.6H2O (1.45 g, 5 mmol) in H2O (5 ml) was added and stirred at 343 K (20 minutes). The mixture was filtered and single crystals were obtained after slow evaporation at room temperature. IR (KBr, cm-1): 3436, 2347, 1650, 1385, 1053, 984, 773, 731, 485.
In the absence of significant
effects the Friedel pairs were merged. H atoms were placed in calculated positions with C-H = 0.95, N-H = 0.90 and O-H = 0.84Å. The hydroxyl H atom of the hydrogen phthalate anion was included in an 'as found' position. All H atoms were included in the in a riding-model approximation with Uiso(H) = 1.2Ueq(C,N) and 1.5Ueq(O).Data collection: SMART (Bruker, 1998); cell
SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus (Bruker, 1998); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The asymmetric unit of the title hydrated salt, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50 % probability level. The hydrogen bonds are shown by dashed lines. | |
Fig. 2. Part of the crystal structure of the title compound with hydrogen bonds shown as dashed lines. |
2C5H8N3+·C8H5O4−·NO3−·H2O | F(000) = 976 |
Mr = 465.43 | Dx = 1.496 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 5008 reflections |
a = 3.6923 (3) Å | θ = 2.2–27.2° |
b = 37.857 (3) Å | µ = 0.12 mm−1 |
c = 14.8415 (10) Å | T = 120 K |
β = 95.111 (2)° | Prism, colorless |
V = 2066.3 (3) Å3 | 0.29 × 0.26 × 0.22 mm |
Z = 4 |
Bruker SMART 1000 diffractometer | 2737 independent reflections |
Radiation source: fine-focus sealed tube | 2309 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.034 |
ϕ and ω scans | θmax = 29.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −5→5 |
Tmin = 0.966, Tmax = 0.974 | k = −50→49 |
15097 measured reflections | l = −20→20 |
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)] = 0.046 | Hydrogen site location: mixed |
wR(F2) = 0.093 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.02P)2 + 3.5P] where P = (Fo2 + 2Fc2)/3 |
2737 reflections | (Δ/σ)max < 0.001 |
298 parameters | Δρmax = 0.26 e Å−3 |
2 restraints | Δρmin = −0.19 e Å−3 |
2C5H8N3+·C8H5O4−·NO3−·H2O | V = 2066.3 (3) Å3 |
Mr = 465.43 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 3.6923 (3) Å | µ = 0.12 mm−1 |
b = 37.857 (3) Å | T = 120 K |
c = 14.8415 (10) Å | 0.29 × 0.26 × 0.22 mm |
β = 95.111 (2)° |
Bruker SMART 1000 diffractometer | 2737 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2309 reflections with I > 2σ(I) |
Tmin = 0.966, Tmax = 0.974 | Rint = 0.034 |
15097 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 2 restraints |
wR(F2) = 0.093 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.26 e Å−3 |
2737 reflections | Δρmin = −0.19 e Å−3 |
298 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 | ||
N1 | 0.6231 (8) | 0.17540 (6) | 0.49397 (18) | 0.0283 (6) | |
H1NA | 0.4475 | 0.1658 | 0.4557 | 0.034* | |
H1NB | 0.6041 | 0.1721 | 0.5534 | 0.034* | |
N2 | 0.6881 (7) | 0.22109 (6) | 0.39298 (16) | 0.0229 (5) | |
H2NA | 0.5601 | 0.2072 | 0.3525 | 0.027* | |
N3 | 0.7201 (9) | 0.26246 (7) | 0.28055 (19) | 0.0355 (7) | |
H3NB | 0.7787 | 0.2848 | 0.2672 | 0.043* | |
H3NA | 0.6032 | 0.2454 | 0.2473 | 0.043* | |
C1 | 0.7408 (8) | 0.20826 (8) | 0.4790 (2) | 0.0229 (6) | |
C2 | 0.9210 (9) | 0.22967 (8) | 0.5452 (2) | 0.0268 (6) | |
H2A | 0.9646 | 0.2217 | 0.6059 | 0.032* | |
C3 | 1.0348 (8) | 0.26286 (8) | 0.5202 (2) | 0.0274 (6) | |
H3A | 1.1589 | 0.2775 | 0.5649 | 0.033* | |
C4 | 0.9751 (8) | 0.27550 (8) | 0.4329 (2) | 0.0269 (6) | |
H4A | 1.0539 | 0.2984 | 0.4177 | 0.032* | |
C5 | 0.7960 (8) | 0.25365 (8) | 0.3679 (2) | 0.0253 (6) | |
N4 | 0.5267 (8) | 0.09027 (7) | 0.51218 (19) | 0.0296 (6) | |
H4NA | 0.6869 | 0.0988 | 0.4753 | 0.036* | |
H4NB | 0.5352 | 0.1036 | 0.5625 | 0.036* | |
N5 | 0.4276 (7) | 0.03920 (7) | 0.42957 (18) | 0.0258 (5) | |
H5NA | 0.5180 | 0.0520 | 0.3857 | 0.031* | |
N6 | 0.3504 (8) | −0.00825 (7) | 0.33294 (19) | 0.0331 (6) | |
H6NB | 0.2189 | −0.0275 | 0.3158 | 0.040* | |
H6NA | 0.4457 | 0.0043 | 0.2893 | 0.040* | |
C6 | 0.4164 (8) | 0.05637 (8) | 0.5096 (2) | 0.0251 (6) | |
C7 | 0.2886 (9) | 0.03842 (8) | 0.5820 (2) | 0.0283 (6) | |
H7A | 0.2777 | 0.0497 | 0.6389 | 0.034* | |
C8 | 0.1770 (8) | 0.00351 (9) | 0.5693 (2) | 0.0295 (7) | |
H8A | 0.0886 | −0.0090 | 0.6184 | 0.035* | |
C9 | 0.1914 (9) | −0.01353 (9) | 0.4870 (2) | 0.0294 (7) | |
H9A | 0.1147 | −0.0374 | 0.4797 | 0.035* | |
C10 | 0.3200 (8) | 0.00492 (8) | 0.4155 (2) | 0.0255 (6) | |
O1 | 0.1534 (7) | 0.15535 (7) | 0.33076 (16) | 0.0377 (6) | |
H1 | 0.0380 | 0.1279 | 0.3375 | 0.057* | |
O2 | 0.3398 (7) | 0.19199 (6) | 0.23096 (17) | 0.0367 (6) | |
O3 | −0.1237 (7) | 0.09909 (7) | 0.34030 (16) | 0.0388 (6) | |
O4 | −0.3587 (7) | 0.05715 (7) | 0.25269 (18) | 0.0429 (6) | |
C11 | 0.1856 (8) | 0.16417 (8) | 0.2484 (2) | 0.0269 (6) | |
C12 | 0.0332 (7) | 0.14044 (8) | 0.1715 (2) | 0.0204 (6) | |
C13 | 0.0674 (8) | 0.15452 (8) | 0.0853 (2) | 0.0232 (6) | |
H13A | 0.1735 | 0.1773 | 0.0811 | 0.028* | |
C14 | −0.0452 (8) | 0.13698 (8) | 0.0067 (2) | 0.0263 (6) | |
H14A | −0.0135 | 0.1472 | −0.0505 | 0.032* | |
C15 | −0.2063 (8) | 0.10402 (8) | 0.0126 (2) | 0.0273 (6) | |
H15A | −0.2905 | 0.0916 | −0.0409 | 0.033* | |
C16 | −0.2436 (8) | 0.08934 (8) | 0.0964 (2) | 0.0248 (6) | |
H16A | −0.3498 | 0.0666 | 0.0994 | 0.030* | |
C17 | −0.1311 (8) | 0.10676 (8) | 0.1768 (2) | 0.0225 (6) | |
C18 | −0.2081 (9) | 0.08613 (9) | 0.2609 (2) | 0.0295 (7) | |
N7 | 0.5255 (8) | 0.14787 (7) | 0.72886 (18) | 0.0307 (6) | |
O5 | 0.4868 (8) | 0.17644 (6) | 0.68613 (17) | 0.0419 (6) | |
O6 | 0.6450 (7) | 0.12132 (6) | 0.69036 (16) | 0.0392 (6) | |
O7 | 0.4512 (7) | 0.14595 (6) | 0.80893 (16) | 0.0380 (6) | |
O1W | 0.0932 (8) | 0.07824 (6) | 0.81011 (18) | 0.0400 (6) | |
H1WA | −0.0387 | 0.0932 | 0.7797 | 0.060* | |
H1WB | 0.2333 | 0.0959 | 0.8075 | 0.060* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0383 (15) | 0.0226 (13) | 0.0237 (13) | −0.0027 (11) | 0.0010 (11) | 0.0000 (10) |
N2 | 0.0276 (13) | 0.0200 (12) | 0.0211 (12) | −0.0015 (10) | 0.0019 (10) | −0.0023 (10) |
N3 | 0.0520 (18) | 0.0264 (14) | 0.0270 (14) | −0.0091 (13) | −0.0020 (13) | 0.0015 (11) |
C1 | 0.0223 (14) | 0.0206 (14) | 0.0261 (15) | 0.0022 (11) | 0.0042 (11) | −0.0003 (11) |
C2 | 0.0310 (16) | 0.0269 (15) | 0.0221 (14) | 0.0018 (13) | −0.0002 (12) | −0.0017 (12) |
C3 | 0.0277 (16) | 0.0256 (15) | 0.0285 (16) | 0.0016 (12) | −0.0001 (12) | −0.0091 (12) |
C4 | 0.0264 (15) | 0.0223 (15) | 0.0324 (16) | −0.0007 (12) | 0.0044 (12) | −0.0023 (13) |
C5 | 0.0285 (15) | 0.0226 (15) | 0.0254 (15) | 0.0014 (12) | 0.0056 (12) | 0.0002 (12) |
N4 | 0.0385 (15) | 0.0230 (13) | 0.0276 (13) | −0.0039 (11) | 0.0042 (11) | −0.0019 (10) |
N5 | 0.0293 (13) | 0.0210 (12) | 0.0273 (13) | −0.0020 (10) | 0.0030 (10) | 0.0032 (10) |
N6 | 0.0440 (17) | 0.0260 (14) | 0.0295 (14) | −0.0065 (12) | 0.0047 (12) | −0.0026 (11) |
C6 | 0.0248 (15) | 0.0225 (14) | 0.0282 (15) | 0.0034 (11) | 0.0025 (12) | 0.0022 (12) |
C7 | 0.0304 (16) | 0.0299 (16) | 0.0247 (15) | 0.0028 (13) | 0.0038 (12) | 0.0012 (13) |
C8 | 0.0273 (16) | 0.0299 (17) | 0.0318 (16) | 0.0018 (13) | 0.0053 (13) | 0.0099 (13) |
C9 | 0.0306 (17) | 0.0255 (15) | 0.0322 (16) | −0.0006 (13) | 0.0035 (13) | 0.0053 (13) |
C10 | 0.0239 (14) | 0.0231 (15) | 0.0292 (16) | 0.0027 (12) | 0.0016 (11) | 0.0030 (12) |
O1 | 0.0485 (15) | 0.0380 (13) | 0.0262 (12) | −0.0022 (11) | 0.0012 (10) | −0.0044 (10) |
O2 | 0.0404 (14) | 0.0301 (12) | 0.0397 (14) | −0.0112 (10) | 0.0042 (11) | −0.0086 (10) |
O3 | 0.0516 (16) | 0.0393 (14) | 0.0259 (12) | −0.0030 (12) | 0.0065 (11) | 0.0062 (11) |
O4 | 0.0471 (15) | 0.0370 (14) | 0.0444 (15) | −0.0143 (12) | 0.0021 (12) | 0.0138 (12) |
C11 | 0.0233 (15) | 0.0267 (15) | 0.0307 (16) | 0.0016 (12) | 0.0028 (12) | −0.0067 (13) |
C12 | 0.0178 (13) | 0.0211 (13) | 0.0224 (13) | 0.0033 (10) | 0.0010 (10) | −0.0017 (11) |
C13 | 0.0225 (14) | 0.0206 (13) | 0.0269 (14) | 0.0023 (11) | 0.0040 (11) | 0.0025 (12) |
C14 | 0.0276 (16) | 0.0293 (15) | 0.0224 (14) | 0.0060 (12) | 0.0039 (12) | 0.0036 (12) |
C15 | 0.0258 (15) | 0.0299 (16) | 0.0257 (15) | 0.0043 (12) | −0.0012 (12) | −0.0067 (12) |
C16 | 0.0226 (15) | 0.0195 (13) | 0.0316 (16) | 0.0001 (11) | −0.0014 (12) | −0.0008 (12) |
C17 | 0.0212 (14) | 0.0238 (14) | 0.0232 (14) | 0.0028 (11) | 0.0049 (11) | 0.0007 (11) |
C18 | 0.0257 (16) | 0.0310 (16) | 0.0318 (16) | 0.0052 (13) | 0.0021 (12) | 0.0072 (13) |
N7 | 0.0372 (16) | 0.0307 (14) | 0.0239 (14) | 0.0012 (12) | 0.0004 (11) | −0.0044 (11) |
O5 | 0.0644 (18) | 0.0302 (13) | 0.0324 (13) | 0.0097 (12) | 0.0118 (12) | 0.0070 (10) |
O6 | 0.0564 (16) | 0.0311 (13) | 0.0299 (13) | 0.0120 (11) | 0.0019 (11) | −0.0063 (10) |
O7 | 0.0551 (17) | 0.0352 (14) | 0.0243 (11) | −0.0027 (12) | 0.0071 (11) | −0.0020 (10) |
O1W | 0.0516 (16) | 0.0255 (12) | 0.0431 (14) | 0.0061 (11) | 0.0053 (12) | 0.0075 (10) |
N1—C1 | 1.343 (4) | C8—C9 | 1.386 (5) |
N1—H1NA | 0.8999 | C8—H8A | 0.9500 |
N1—H1NB | 0.9001 | C9—C10 | 1.390 (4) |
N2—C5 | 1.358 (4) | C9—H9A | 0.9500 |
N2—C1 | 1.364 (4) | O1—C11 | 1.283 (4) |
N2—H2NA | 0.9000 | O1—H1 | 1.1299 |
N3—C5 | 1.343 (4) | O2—C11 | 1.235 (4) |
N3—H3NB | 0.8998 | O3—C18 | 1.289 (4) |
N3—H3NA | 0.8998 | O3—H1 | 1.2468 |
C1—C2 | 1.396 (4) | O4—C18 | 1.231 (4) |
C2—C3 | 1.386 (4) | C11—C12 | 1.520 (4) |
C2—H2A | 0.9500 | C12—C13 | 1.402 (4) |
C3—C4 | 1.379 (4) | C12—C17 | 1.417 (4) |
C3—H3A | 0.9500 | C13—C14 | 1.374 (4) |
C4—C5 | 1.393 (4) | C13—H13A | 0.9500 |
C4—H4A | 0.9500 | C14—C15 | 1.389 (5) |
N4—C6 | 1.346 (4) | C14—H14A | 0.9500 |
N4—H4NA | 0.9000 | C15—C16 | 1.381 (4) |
N4—H4NB | 0.9001 | C15—H15A | 0.9500 |
N5—C6 | 1.358 (4) | C16—C17 | 1.393 (4) |
N5—C10 | 1.368 (4) | C16—H16A | 0.9500 |
N5—H5NA | 0.9000 | C17—C18 | 1.520 (4) |
N6—C10 | 1.336 (4) | N7—O7 | 1.245 (3) |
N6—H6NB | 0.8996 | N7—O6 | 1.255 (3) |
N6—H6NA | 0.8999 | N7—O5 | 1.256 (4) |
C6—C7 | 1.389 (4) | O1W—H1WA | 0.8497 |
C7—C8 | 1.392 (5) | O1W—H1WB | 0.8496 |
C7—H7A | 0.9500 | ||
C1—N1—H1NA | 119.7 | C9—C8—C7 | 121.8 (3) |
C1—N1—H1NB | 110.2 | C9—C8—H8A | 119.1 |
H1NA—N1—H1NB | 116.7 | C7—C8—H8A | 119.1 |
C5—N2—C1 | 124.0 (3) | C8—C9—C10 | 118.8 (3) |
C5—N2—H2NA | 119.7 | C8—C9—H9A | 120.6 |
C1—N2—H2NA | 116.2 | C10—C9—H9A | 120.6 |
C5—N3—H3NB | 114.3 | N6—C10—N5 | 116.6 (3) |
C5—N3—H3NA | 113.5 | N6—C10—C9 | 125.1 (3) |
H3NB—N3—H3NA | 131.9 | N5—C10—C9 | 118.3 (3) |
N1—C1—N2 | 117.6 (3) | C11—O1—H1 | 113.1 |
N1—C1—C2 | 124.3 (3) | C18—O3—H1 | 112.4 |
N2—C1—C2 | 118.1 (3) | O2—C11—O1 | 120.4 (3) |
C3—C2—C1 | 118.4 (3) | O2—C11—C12 | 119.5 (3) |
C3—C2—H2A | 120.8 | O1—C11—C12 | 120.1 (3) |
C1—C2—H2A | 120.8 | C13—C12—C17 | 117.8 (3) |
C4—C3—C2 | 122.6 (3) | C13—C12—C11 | 113.8 (3) |
C4—C3—H3A | 118.7 | C17—C12—C11 | 128.5 (3) |
C2—C3—H3A | 118.7 | C14—C13—C12 | 123.1 (3) |
C3—C4—C5 | 118.1 (3) | C14—C13—H13A | 118.5 |
C3—C4—H4A | 120.9 | C12—C13—H13A | 118.5 |
C5—C4—H4A | 120.9 | C13—C14—C15 | 118.7 (3) |
N3—C5—N2 | 116.7 (3) | C13—C14—H14A | 120.7 |
N3—C5—C4 | 124.5 (3) | C15—C14—H14A | 120.7 |
N2—C5—C4 | 118.8 (3) | C16—C15—C14 | 119.7 (3) |
C6—N4—H4NA | 122.5 | C16—C15—H15A | 120.1 |
C6—N4—H4NB | 123.2 | C14—C15—H15A | 120.1 |
H4NA—N4—H4NB | 109.1 | C15—C16—C17 | 122.3 (3) |
C6—N5—C10 | 123.8 (3) | C15—C16—H16A | 118.8 |
C6—N5—H5NA | 114.7 | C17—C16—H16A | 118.8 |
C10—N5—H5NA | 121.5 | C16—C17—C12 | 118.4 (3) |
C10—N6—H6NB | 118.3 | C16—C17—C18 | 113.4 (3) |
C10—N6—H6NA | 122.2 | C12—C17—C18 | 128.3 (3) |
H6NB—N6—H6NA | 117.4 | O4—C18—O3 | 120.0 (3) |
N4—C6—N5 | 116.7 (3) | O4—C18—C17 | 119.5 (3) |
N4—C6—C7 | 124.5 (3) | O3—C18—C17 | 120.5 (3) |
N5—C6—C7 | 118.8 (3) | O7—N7—O6 | 120.3 (3) |
C6—C7—C8 | 118.5 (3) | O7—N7—O5 | 120.5 (3) |
C6—C7—H7A | 120.8 | O6—N7—O5 | 119.2 (3) |
C8—C7—H7A | 120.8 | H1WA—O1W—H1WB | 76.9 |
C5—N2—C1—N1 | −179.3 (3) | O2—C11—C12—C13 | −3.8 (4) |
C5—N2—C1—C2 | −0.9 (4) | O1—C11—C12—C13 | 176.1 (3) |
N1—C1—C2—C3 | 178.7 (3) | O2—C11—C12—C17 | 175.6 (3) |
N2—C1—C2—C3 | 0.4 (4) | O1—C11—C12—C17 | −4.5 (5) |
C1—C2—C3—C4 | 0.4 (5) | C17—C12—C13—C14 | −1.0 (4) |
C2—C3—C4—C5 | −0.6 (5) | C11—C12—C13—C14 | 178.5 (3) |
C1—N2—C5—N3 | −179.3 (3) | C12—C13—C14—C15 | 1.1 (4) |
C1—N2—C5—C4 | 0.7 (4) | C13—C14—C15—C16 | −1.2 (4) |
C3—C4—C5—N3 | −179.9 (3) | C14—C15—C16—C17 | 1.3 (5) |
C3—C4—C5—N2 | 0.1 (4) | C15—C16—C17—C12 | −1.2 (4) |
C10—N5—C6—N4 | −179.0 (3) | C15—C16—C17—C18 | 178.4 (3) |
C10—N5—C6—C7 | 0.0 (4) | C13—C12—C17—C16 | 1.0 (4) |
N4—C6—C7—C8 | 178.8 (3) | C11—C12—C17—C16 | −178.4 (3) |
N5—C6—C7—C8 | −0.1 (4) | C13—C12—C17—C18 | −178.5 (3) |
C6—C7—C8—C9 | 0.2 (5) | C11—C12—C17—C18 | 2.1 (5) |
C7—C8—C9—C10 | −0.2 (5) | C16—C17—C18—O4 | −0.5 (4) |
C6—N5—C10—N6 | −179.5 (3) | C12—C17—C18—O4 | 179.0 (3) |
C6—N5—C10—C9 | 0.0 (4) | C16—C17—C18—O3 | −179.1 (3) |
C8—C9—C10—N6 | 179.6 (3) | C12—C17—C18—O3 | 0.4 (5) |
C8—C9—C10—N5 | 0.1 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3 | 1.13 | 1.25 | 2.373 (4) | 173 |
N1—H1NA···O1 | 0.90 | 2.10 | 2.950 (4) | 157 |
N1—H1NB···O5 | 0.90 | 2.06 | 2.940 (4) | 165 |
N2—H2NA···O1 | 0.90 | 2.48 | 3.259 (4) | 146 |
N2—H2NA···O2 | 0.90 | 2.00 | 2.846 (3) | 157 |
N3—H3NB···O5i | 0.90 | 2.09 | 2.921 (4) | 154 |
N3—H3NA···O2 | 0.90 | 2.25 | 3.074 (4) | 153 |
N4—H4NA···O3ii | 0.90 | 2.18 | 2.979 (4) | 147 |
N4—H4NB···O6 | 0.90 | 2.02 | 2.891 (4) | 163 |
N5—H5NA···O3ii | 0.90 | 2.35 | 3.167 (4) | 150 |
N5—H5NA···O4ii | 0.90 | 2.07 | 2.889 (4) | 150 |
N6—H6NB···O1Wiii | 0.90 | 1.98 | 2.825 (4) | 157 |
N6—H6NA···O4ii | 0.90 | 2.21 | 2.988 (4) | 144 |
O1W—H1WA···O6iv | 0.85 | 1.99 | 2.834 (4) | 169 |
O1W—H1WB···O6 | 0.85 | 2.59 | 3.258 (4) | 136 |
O1W—H1WB···O7 | 0.85 | 2.06 | 2.885 (3) | 165 |
Symmetry codes: (i) x+1/2, −y+1/2, z−1/2; (ii) x+1, y, z; (iii) x, −y, z−1/2; (iv) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | 2C5H8N3+·C8H5O4−·NO3−·H2O |
Mr | 465.43 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 120 |
a, b, c (Å) | 3.6923 (3), 37.857 (3), 14.8415 (10) |
β (°) | 95.111 (2) |
V (Å3) | 2066.3 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.12 |
Crystal size (mm) | 0.29 × 0.26 × 0.22 |
Data collection | |
Diffractometer | Bruker SMART 1000 diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.966, 0.974 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15097, 2737, 2309 |
Rint | 0.034 |
(sin θ/λ)max (Å−1) | 0.682 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.093, 1.01 |
No. of reflections | 2737 |
No. of parameters | 298 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.19 |
Computer programs: SMART (Bruker, 1998), SAINT-Plus (Bruker, 1998), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3 | 1.13 | 1.25 | 2.373 (4) | 173 |
N1—H1NA···O1 | 0.90 | 2.10 | 2.950 (4) | 157 |
N1—H1NB···O5 | 0.90 | 2.06 | 2.940 (4) | 165 |
N2—H2NA···O1 | 0.90 | 2.48 | 3.259 (4) | 146 |
N2—H2NA···O2 | 0.90 | 2.00 | 2.846 (3) | 157 |
N3—H3NB···O5i | 0.90 | 2.09 | 2.921 (4) | 154 |
N3—H3NA···O2 | 0.90 | 2.25 | 3.074 (4) | 153 |
N4—H4NA···O3ii | 0.90 | 2.18 | 2.979 (4) | 147 |
N4—H4NB···O6 | 0.90 | 2.02 | 2.891 (4) | 163 |
N5—H5NA···O3ii | 0.90 | 2.35 | 3.167 (4) | 150 |
N5—H5NA···O4ii | 0.90 | 2.07 | 2.889 (4) | 150 |
N6—H6NB···O1Wiii | 0.90 | 1.98 | 2.825 (4) | 157 |
N6—H6NA···O4ii | 0.90 | 2.21 | 2.988 (4) | 144 |
O1W—H1WA···O6iv | 0.85 | 1.99 | 2.834 (4) | 169 |
O1W—H1WB···O6 | 0.85 | 2.59 | 3.258 (4) | 136 |
O1W—H1WB···O7 | 0.85 | 2.06 | 2.885 (3) | 165 |
Symmetry codes: (i) x+1/2, −y+1/2, z−1/2; (ii) x+1, y, z; (iii) x, −y, z−1/2; (iv) x−1, y, z. |
Acknowledgements
Support of this investigation by Islamic Azad University-North Tehran Branch is gratefully acknowledged.
References
Al-Dajani, M. T. M., Salhin, A., Mohamed, N., Loh, W.-S. & Fun, H.-K. (2009). Acta Cryst. E65, o2931–o2932. Web of Science CSD CrossRef IUCr Journals Google Scholar
Bruker (1998). SMART and SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Gilli, P., Bertolasi, V., Ferretti, V. & Gilli, G. (1994). J. Am. Chem. Soc. 116, 909–915. CrossRef CAS Web of Science 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
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In previous work, the crystal structure of tetrakis(2,6-diaminopyridinium) diphthalate 2,6-diaminopyridine (Al-Dajani et al., 2009) was investigated; we report here on the synthesis and crystal structure of a new proton-transfer salt of 2,6-diaminopyridine and phthalic acid. In the title compound (Fig. 1), phthalic acid is mono-deprotonated while the two 2,6-diaminopyridine components are protonated at the pyridine nitrogen atom. The two 2,6-diaminopyridinium cations are crystallographically independent. In the mono-anion, there is a very strong intramolecular [O—H···O]- hydrogen bond (O1···O3 = 2.373 (4) Å) which is a result of the negative charge-assisted effect described by Gilli et al. (1994). The cations, anions and water molecules are liked into a 3-D network by O—H···O and N—H···O hydrogen bonds. A view of crystal packing is shown in Fig. 2.