organic compounds
2-Methyl-2,4-di-4-pyridyl-2,3-dihydro-1H-1,5-benzodiazepine acetic acid solvate
aState Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Avenue, Changchun 130012, People's Republic of China
*Correspondence e-mail: smjiang@jlu.edu.cn
In the title compound, C20H18N4·CH3COOH, the benzene ring forms dihedral angles of 81.34 (11) and 54.32 (11)° with the two pyridine rings. In the crystal, intermolecular O—H⋯N hydrogen bonding links one 1,5-benzodiazepine molecule and one acetic acid solvent molecule into a dimer. These dimers, related by translation along the b axis, are further linked into chains via weak intermolecular N—H⋯N hydrogen bonds.
Experimental
Crystal data
|
Refinement
|
Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809049836/cv2662sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809049836/cv2662Isup2.hkl
The title compound and its single crystals suitable for the X-ray diffraction were prepared by slow evaporation of the ethanol solution which contains o-phenylenediamine, 4-acetylpyridine and a small amount of acetic acid at room temperatue.
All H atoms were placed in calculated positions (C—H 0.93 - 0.97 Å, N—H 0.86 Å, O—H 0.82 Å), and were included in the
in the riding model approximation, with Uiso(H) = 1.2 or 1.5 Ueq of the parent atom.Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The asymmetric unit of the title compound showing the atomic numbering. Displacement ellipsoids of non-H atoms are drawn at the 30% probability level. |
C20H18N4·C2H4O2 | Z = 2 |
Mr = 374.44 | F(000) = 396 |
Triclinic, P1 | Dx = 1.241 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.925 (6) Å | Cell parameters from 6051 reflections |
b = 10.172 (8) Å | θ = 3.1–27.5° |
c = 12.283 (9) Å | µ = 0.08 mm−1 |
α = 68.56 (3)° | T = 290 K |
β = 75.41 (3)° | Block, colourless |
γ = 88.52 (3)° | 0.11 × 0.10 × 0.09 mm |
V = 1001.8 (12) Å3 |
Rigaku R-AXIS RAPID diffractometer | 4547 independent reflections |
Radiation source: fine-focus sealed tube | 2400 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
ω scans | θmax = 27.5°, θmin = 3.1° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −11→11 |
Tmin = 0.991, Tmax = 0.993 | k = −13→13 |
9946 measured reflections | l = −15→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)] = 0.064 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.211 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.1067P)2 + 0.0338P] where P = (Fo2 + 2Fc2)/3 |
4547 reflections | (Δ/σ)max < 0.001 |
256 parameters | Δρmax = 0.24 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
C20H18N4·C2H4O2 | γ = 88.52 (3)° |
Mr = 374.44 | V = 1001.8 (12) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.925 (6) Å | Mo Kα radiation |
b = 10.172 (8) Å | µ = 0.08 mm−1 |
c = 12.283 (9) Å | T = 290 K |
α = 68.56 (3)° | 0.11 × 0.10 × 0.09 mm |
β = 75.41 (3)° |
Rigaku R-AXIS RAPID diffractometer | 4547 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2400 reflections with I > 2σ(I) |
Tmin = 0.991, Tmax = 0.993 | Rint = 0.039 |
9946 measured reflections |
R[F2 > 2σ(F2)] = 0.064 | 0 restraints |
wR(F2) = 0.211 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.24 e Å−3 |
4547 reflections | Δρmin = −0.36 e Å−3 |
256 parameters |
Experimental. (See detailed section in the paper) |
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 | ||
C1 | 0.2037 (3) | 0.2500 (2) | 1.0826 (2) | 0.0436 (6) | |
C2 | 0.1293 (3) | 0.2017 (3) | 1.2065 (3) | 0.0533 (7) | |
H2 | 0.0990 | 0.2679 | 1.2422 | 0.064* | |
C3 | 0.0993 (3) | 0.0601 (3) | 1.2775 (3) | 0.0603 (7) | |
H3 | 0.0519 | 0.0310 | 1.3600 | 0.072* | |
C4 | 0.1407 (3) | −0.0376 (3) | 1.2242 (3) | 0.0598 (8) | |
H4 | 0.1206 | −0.1338 | 1.2707 | 0.072* | |
C5 | 0.2111 (3) | 0.0060 (2) | 1.1037 (3) | 0.0545 (7) | |
H5 | 0.2379 | −0.0623 | 1.0698 | 0.065* | |
C6 | 0.2455 (3) | 0.1504 (2) | 1.0273 (2) | 0.0448 (6) | |
C7 | 0.3831 (3) | 0.3117 (2) | 0.8120 (2) | 0.0456 (6) | |
C8 | 0.5137 (3) | 0.2748 (3) | 0.7236 (3) | 0.0616 (8) | |
H8A | 0.5878 | 0.2247 | 0.7652 | 0.092* | |
H8B | 0.5639 | 0.3603 | 0.6590 | 0.092* | |
H8C | 0.4717 | 0.2163 | 0.6907 | 0.092* | |
C9 | 0.2688 (3) | 0.3983 (2) | 0.7451 (2) | 0.0476 (6) | |
C10 | 0.1148 (4) | 0.3542 (3) | 0.7753 (3) | 0.0701 (9) | |
H10 | 0.0750 | 0.2681 | 0.8374 | 0.084* | |
C11 | 0.0187 (4) | 0.4432 (4) | 0.7092 (4) | 0.0911 (12) | |
H11 | −0.0858 | 0.4136 | 0.7294 | 0.109* | |
C12 | 0.2161 (5) | 0.6063 (4) | 0.5942 (3) | 0.0795 (10) | |
H12 | 0.2526 | 0.6934 | 0.5325 | 0.095* | |
C13 | 0.3180 (4) | 0.5278 (3) | 0.6521 (3) | 0.0652 (8) | |
H13 | 0.4216 | 0.5614 | 0.6290 | 0.078* | |
C14 | 0.4524 (3) | 0.4008 (2) | 0.8686 (2) | 0.0458 (6) | |
H14A | 0.5078 | 0.3404 | 0.9244 | 0.055* | |
H14B | 0.5263 | 0.4741 | 0.8050 | 0.055* | |
C15 | 0.3307 (3) | 0.4680 (2) | 0.9343 (2) | 0.0400 (5) | |
C16 | 0.3302 (3) | 0.6249 (2) | 0.8930 (2) | 0.0409 (5) | |
C17 | 0.4648 (3) | 0.7133 (2) | 0.8320 (2) | 0.0468 (6) | |
H17 | 0.5584 | 0.6766 | 0.8080 | 0.056* | |
C18 | 0.4577 (3) | 0.8567 (2) | 0.8072 (3) | 0.0533 (7) | |
H18 | 0.5499 | 0.9139 | 0.7690 | 0.064* | |
C19 | 0.1991 (3) | 0.8327 (3) | 0.8883 (3) | 0.0587 (7) | |
H19 | 0.1058 | 0.8733 | 0.9053 | 0.070* | |
C20 | 0.1949 (3) | 0.6889 (3) | 0.9202 (3) | 0.0534 (7) | |
H20 | 0.1013 | 0.6344 | 0.9601 | 0.064* | |
C21 | 0.6804 (5) | 0.8687 (5) | 0.4824 (4) | 0.1079 (15) | |
H21A | 0.5708 | 0.8432 | 0.5084 | 0.162* | |
H21B | 0.7133 | 0.9067 | 0.3955 | 0.162* | |
H21C | 0.7025 | 0.9387 | 0.5126 | 0.162* | |
C22 | 0.7639 (4) | 0.7424 (4) | 0.5294 (3) | 0.0768 (10) | |
N1 | 0.2212 (2) | 0.39891 (19) | 1.02797 (19) | 0.0445 (5) | |
N2 | 0.3101 (3) | 0.1793 (2) | 0.9066 (2) | 0.0551 (6) | |
H2A | 0.3069 | 0.1093 | 0.8836 | 0.066* | |
N3 | 0.0682 (4) | 0.5654 (3) | 0.6210 (3) | 0.0836 (9) | |
N4 | 0.3286 (3) | 0.9185 (2) | 0.8342 (2) | 0.0556 (6) | |
O1 | 0.7070 (3) | 0.6287 (3) | 0.6004 (3) | 0.1032 (9) | |
O2 | 0.9124 (3) | 0.7674 (3) | 0.5022 (3) | 0.1017 (9) | |
H2B | 0.9495 | 0.7015 | 0.5469 | 0.153* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0418 (12) | 0.0344 (12) | 0.0494 (14) | −0.0018 (10) | −0.0064 (11) | −0.0128 (10) |
C2 | 0.0505 (14) | 0.0459 (14) | 0.0580 (17) | −0.0008 (11) | −0.0022 (13) | −0.0207 (12) |
C3 | 0.0594 (16) | 0.0541 (16) | 0.0506 (16) | −0.0054 (13) | −0.0016 (13) | −0.0082 (13) |
C4 | 0.0639 (17) | 0.0381 (13) | 0.0614 (18) | −0.0055 (12) | −0.0059 (15) | −0.0063 (12) |
C5 | 0.0593 (16) | 0.0318 (12) | 0.0657 (18) | 0.0025 (11) | −0.0113 (14) | −0.0136 (12) |
C6 | 0.0443 (13) | 0.0330 (11) | 0.0535 (15) | 0.0023 (10) | −0.0088 (12) | −0.0145 (10) |
C7 | 0.0493 (13) | 0.0320 (11) | 0.0527 (14) | 0.0030 (10) | −0.0068 (12) | −0.0167 (10) |
C8 | 0.0634 (17) | 0.0520 (15) | 0.0663 (18) | 0.0084 (13) | −0.0006 (15) | −0.0295 (14) |
C9 | 0.0530 (15) | 0.0407 (12) | 0.0531 (15) | 0.0034 (11) | −0.0099 (12) | −0.0247 (11) |
C10 | 0.0612 (18) | 0.0599 (17) | 0.089 (2) | 0.0034 (14) | −0.0206 (17) | −0.0266 (16) |
C11 | 0.065 (2) | 0.099 (3) | 0.125 (3) | 0.009 (2) | −0.034 (2) | −0.053 (3) |
C12 | 0.089 (3) | 0.074 (2) | 0.073 (2) | 0.0165 (19) | −0.028 (2) | −0.0203 (17) |
C13 | 0.0704 (19) | 0.0555 (16) | 0.0571 (17) | 0.0060 (14) | −0.0128 (15) | −0.0090 (13) |
C14 | 0.0445 (13) | 0.0332 (11) | 0.0576 (15) | 0.0035 (10) | −0.0088 (12) | −0.0175 (11) |
C15 | 0.0426 (12) | 0.0310 (11) | 0.0477 (13) | 0.0001 (9) | −0.0107 (11) | −0.0166 (10) |
C16 | 0.0439 (12) | 0.0337 (11) | 0.0467 (13) | 0.0007 (9) | −0.0102 (11) | −0.0178 (10) |
C17 | 0.0439 (13) | 0.0386 (12) | 0.0554 (15) | −0.0006 (10) | −0.0055 (12) | −0.0193 (11) |
C18 | 0.0523 (15) | 0.0373 (13) | 0.0640 (17) | −0.0072 (11) | −0.0067 (13) | −0.0167 (12) |
C19 | 0.0472 (14) | 0.0398 (13) | 0.090 (2) | 0.0043 (11) | −0.0119 (14) | −0.0291 (14) |
C20 | 0.0448 (13) | 0.0366 (12) | 0.0772 (19) | −0.0015 (10) | −0.0091 (13) | −0.0235 (12) |
C21 | 0.094 (3) | 0.110 (3) | 0.105 (3) | 0.022 (2) | −0.039 (3) | −0.015 (3) |
C22 | 0.0560 (18) | 0.089 (2) | 0.081 (2) | −0.0001 (17) | −0.0146 (17) | −0.028 (2) |
N1 | 0.0446 (11) | 0.0336 (10) | 0.0524 (12) | 0.0004 (8) | −0.0069 (10) | −0.0163 (9) |
N2 | 0.0783 (15) | 0.0291 (10) | 0.0525 (13) | −0.0022 (10) | −0.0052 (12) | −0.0163 (9) |
N3 | 0.104 (2) | 0.0753 (19) | 0.083 (2) | 0.0293 (17) | −0.0411 (19) | −0.0328 (16) |
N4 | 0.0589 (13) | 0.0346 (10) | 0.0743 (16) | 0.0030 (10) | −0.0151 (12) | −0.0228 (10) |
O1 | 0.0889 (18) | 0.0776 (17) | 0.108 (2) | −0.0144 (14) | 0.0036 (16) | −0.0122 (16) |
O2 | 0.0828 (17) | 0.097 (2) | 0.094 (2) | −0.0047 (14) | −0.0226 (15) | 0.0014 (15) |
C1—C2 | 1.400 (4) | C12—C13 | 1.358 (4) |
C1—C6 | 1.408 (4) | C12—H12 | 0.9300 |
C1—N1 | 1.409 (3) | C13—H13 | 0.9300 |
C2—C3 | 1.375 (4) | C14—C15 | 1.491 (3) |
C2—H2 | 0.9300 | C14—H14A | 0.9700 |
C3—C4 | 1.373 (4) | C14—H14B | 0.9700 |
C3—H3 | 0.9300 | C15—N1 | 1.284 (3) |
C4—C5 | 1.360 (4) | C15—C16 | 1.488 (3) |
C4—H4 | 0.9300 | C16—C20 | 1.381 (4) |
C5—C6 | 1.415 (3) | C16—C17 | 1.387 (3) |
C5—H5 | 0.9300 | C17—C18 | 1.380 (3) |
C6—N2 | 1.370 (4) | C17—H17 | 0.9300 |
C7—N2 | 1.452 (3) | C18—N4 | 1.325 (3) |
C7—C8 | 1.522 (4) | C18—H18 | 0.9300 |
C7—C9 | 1.529 (3) | C19—N4 | 1.334 (3) |
C7—C14 | 1.546 (4) | C19—C20 | 1.368 (4) |
C8—H8A | 0.9600 | C19—H19 | 0.9300 |
C8—H8B | 0.9600 | C20—H20 | 0.9300 |
C8—H8C | 0.9600 | C21—C22 | 1.471 (5) |
C9—C10 | 1.371 (4) | C21—H21A | 0.9600 |
C9—C13 | 1.382 (4) | C21—H21B | 0.9600 |
C10—C11 | 1.410 (5) | C21—H21C | 0.9600 |
C10—H10 | 0.9300 | C22—O1 | 1.194 (4) |
C11—N3 | 1.309 (5) | C22—O2 | 1.290 (4) |
C11—H11 | 0.9300 | N2—H2A | 0.8600 |
C12—N3 | 1.317 (5) | O2—H2B | 0.8200 |
C2—C1—C6 | 119.0 (2) | C12—C13—H13 | 119.8 |
C2—C1—N1 | 112.7 (2) | C9—C13—H13 | 119.8 |
C6—C1—N1 | 128.2 (2) | C15—C14—C7 | 112.2 (2) |
C3—C2—C1 | 122.5 (3) | C15—C14—H14A | 109.2 |
C3—C2—H2 | 118.7 | C7—C14—H14A | 109.2 |
C1—C2—H2 | 118.7 | C15—C14—H14B | 109.2 |
C4—C3—C2 | 118.7 (3) | C7—C14—H14B | 109.2 |
C4—C3—H3 | 120.6 | H14A—C14—H14B | 107.9 |
C2—C3—H3 | 120.6 | N1—C15—C16 | 115.3 (2) |
C5—C4—C3 | 120.2 (2) | N1—C15—C14 | 124.3 (2) |
C5—C4—H4 | 119.9 | C16—C15—C14 | 120.4 (2) |
C3—C4—H4 | 119.9 | C20—C16—C17 | 116.8 (2) |
C4—C5—C6 | 123.1 (3) | C20—C16—C15 | 120.8 (2) |
C4—C5—H5 | 118.4 | C17—C16—C15 | 122.3 (2) |
C6—C5—H5 | 118.5 | C18—C17—C16 | 119.0 (2) |
N2—C6—C1 | 126.6 (2) | C18—C17—H17 | 120.5 |
N2—C6—C5 | 116.9 (2) | C16—C17—H17 | 120.5 |
C1—C6—C5 | 116.5 (2) | N4—C18—C17 | 124.4 (2) |
N2—C7—C8 | 107.2 (2) | N4—C18—H18 | 117.8 |
N2—C7—C9 | 112.2 (2) | C17—C18—H18 | 117.8 |
C8—C7—C9 | 109.8 (2) | N4—C19—C20 | 124.1 (2) |
N2—C7—C14 | 109.4 (2) | N4—C19—H19 | 117.9 |
C8—C7—C14 | 109.2 (2) | C20—C19—H19 | 117.9 |
C9—C7—C14 | 108.97 (19) | C19—C20—C16 | 119.8 (2) |
C7—C8—H8A | 109.5 | C19—C20—H20 | 120.1 |
C7—C8—H8B | 109.5 | C16—C20—H20 | 120.1 |
H8A—C8—H8B | 109.5 | C22—C21—H21A | 109.5 |
C7—C8—H8C | 109.5 | C22—C21—H21B | 109.5 |
H8A—C8—H8C | 109.5 | H21A—C21—H21B | 109.5 |
H8B—C8—H8C | 109.5 | C22—C21—H21C | 109.5 |
C10—C9—C13 | 117.3 (3) | H21A—C21—H21C | 109.5 |
C10—C9—C7 | 122.5 (2) | H21B—C21—H21C | 109.5 |
C13—C9—C7 | 120.2 (2) | O1—C22—O2 | 118.9 (3) |
C9—C10—C11 | 117.9 (3) | O1—C22—C21 | 126.4 (4) |
C9—C10—H10 | 121.0 | O2—C22—C21 | 113.9 (3) |
C11—C10—H10 | 121.0 | C15—N1—C1 | 123.9 (2) |
N3—C11—C10 | 123.7 (3) | C6—N2—C7 | 129.0 (2) |
N3—C11—H11 | 118.1 | C6—N2—H2A | 115.5 |
C10—C11—H11 | 118.1 | C7—N2—H2A | 115.5 |
N3—C12—C13 | 123.3 (3) | C11—N3—C12 | 117.4 (3) |
N3—C12—H12 | 118.3 | C18—N4—C19 | 115.8 (2) |
C13—C12—H12 | 118.3 | C22—O2—H2B | 109.5 |
C12—C13—C9 | 120.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···N4i | 0.86 | 2.23 | 3.079 (4) | 172 |
O2—H2B···N3ii | 0.82 | 1.83 | 2.640 (4) | 168 |
Symmetry codes: (i) x, y−1, z; (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C20H18N4·C2H4O2 |
Mr | 374.44 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 290 |
a, b, c (Å) | 8.925 (6), 10.172 (8), 12.283 (9) |
α, β, γ (°) | 68.56 (3), 75.41 (3), 88.52 (3) |
V (Å3) | 1001.8 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.11 × 0.10 × 0.09 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.991, 0.993 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9946, 4547, 2400 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.064, 0.211, 1.04 |
No. of reflections | 4547 |
No. of parameters | 256 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.36 |
Computer programs: RAPID-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···N4i | 0.86 | 2.23 | 3.079 (4) | 171.8 |
O2—H2B···N3ii | 0.82 | 1.83 | 2.640 (4) | 168.3 |
Symmetry codes: (i) x, y−1, z; (ii) x+1, y, z. |
Acknowledgements
This work was supported by the National Natural Science Foundation of China (grant No. 20874038) and the National Basic Research Program of China (grant No. 2007CB936402).
References
Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan. Google Scholar
Hou, Q.-F., Ye, L. & Jiang, S.-M. (2007). Acta Cryst. E63, o939–o940. Web of Science CSD CrossRef IUCr Journals Google Scholar
Rigaku (1998). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku/MSC & Rigaku Corporation (2002). CrystalStructure. Rigaku/MSC Inc., The Woodlands, Texas, USA. 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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The title compound (I) was unexpectedly obtained during our study of the Schiff base bis-pyridine complex (Hou et al., 2007). In this paper, we report its crystal structure.
In (I) (Fig.1), the dihedral angles between benzene ring and two pyridine rings are 81.34 (11) ° and 54.32 (11) °, respectively. In the crystal structure, the intramolecular O—H···N and intermolecule N—H···N hydrogen bonds (Table 1) are observed.