organic compounds
(4Z)-4-[(4-Methoxybenzylamino)(phenyl)methylene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
aCollege of Chemistry and Life Science, Tianjin Normal University, Tianjin, People's Republic of China, bElementary Education College, Tianjin Normal University, Weijin Road No. 241, Tianjin, People's Republic of China, and cState Key Laboratory of Enlemento-Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
*Correspondence e-mail: hsxyxhz@mail.tjnu.edu.cn, zyq8165@126.com
In the title compound, C25H23N3O2, the dihedral angles formed by the pyrazolone ring with the three aromatic rings are 14.59 (7), 79.35 (5) and 87.10 (6)°. Three intramolecular C—H⋯O, C—H⋯N and N—H⋯O hydrogen-bond interactions are present. The is stabilized by two weak intermolecular C—H⋯O and C—H⋯N hydrogen-bond interactions.
Related literature
For the biological activity of 1-phenyl-3-methyl-4-benzoylpyrazolon-5-one and its metal complexes, see: Li et al. (1997); Liu et al. (1980); Zhou et al. (1999). For a related structure, see: Wang et al. (2003).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; 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/S1600536809040458/fl2271sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809040458/fl2271Isup2.hkl
Compound (I) was synthesized by refluxing a mixture of 1-phenyl-3- methyl-4-benzoylpyrazol-5-one (10 mmol) and 4-methoxybenzylamine (10 mmol) in ethanol (80 ml) over a steam bath for about 4 h. Excess solvent was removed by evaporation and the solution was cooled to room temperature. After 2 days a yellow solid was obtained and this was dried in air. The product was recrystallized from ethanol, to afford yellow crystals of (I) suitable for X-ray analysis.
C-bonded H atoms were positioned geometrically, with C—H = 0.95–0.99 Å and amine H atoms (H3) were found in a difference map. Amine H atoms were refined freely, while C-bonded H atoms were included in the final cycles of
using a riding model, with Uiso(H) = 1.2Ueq(CH2 and CH) or 1.5Ueq(CH3).1-Phenyl-3-methyl-4-benzoylpyrazolon-5-one (HPMBP), an effective β-diketonate, is widely used and well known for its extractive ability. In recent years, HPMBP and its metal complexes have also been found to have good antibacterial and biological properties. Its metal complexes have analgesic activity (Liu et al., 1980; Li et al., 1997; Zhou et al., 1999). In order to develop new medicines, we have synthesized the title compound, (I), and its structure is reported here.
The structure of (I) is shown in Fig. 1. The dihedral angles formed by the pyrazolone ring with the three benzene rings C1···C6, C12···C17 and C19···C24 are 14.59 (7), 79.35 (5) and 87.10 (6)°, respectively. The O atom of the 3-methyl-1-phenylpyrazol-5-one moiety and the N atom of the amino group are available for coordination with metals. The pyrazole ring is planar and atoms O1, C7, C8, C11 and N3 are almost coplanar fwith an rmsd value of 0.0093 and the largest deviation is 0.0144 (10) Å for atom C7. The dihedral angle between this mean plane and the pyrazoline ring of PMBP is 3.53 (7)°, close to the value of 3.56 (3)° found in 4-{[3,4-dihydro-5- methyl-3-oxo-2-phenyl-2H-pyrazol-4-ylidene(phenyl)methylamino}- 1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one(Wang et al., 2003). The bond lengths within this part of the molecule lie between classical single- and double-bond lengths, indicating extensive conjugation. A strong intramolecular N3—H3A···O1 hydrogen bond (Table 1) is observed, leading to a keto-enamine form. The molecule is further stabilized by a C—H···O weak intramolecular hydrogen bond (Table 1). The
also involves two weak intermolecular(C—H···O and C—H···N) hydrogen-bond interactions(Fig. 2).For the biological activity of 1-phenyl-3-methyl-4-benzoylpyrazolon-5-one and its metal complexes, see: Li et al. (1997); Liu et al. (1980); Zhou et al. (1999). For a related structure, see: Wang et al. (2003).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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. View of the title compound, with displacement ellipsoids drawn at the 30% probability level. | |
Fig. 2. Intermolecular hydrogen bonds (dashed line) in the structure of (I). |
C25H23N3O2 | F(000) = 1680 |
Mr = 397.46 | Dx = 1.250 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 10389 reflections |
a = 17.685 (4) Å | θ = 2.3–27.5° |
b = 11.613 (2) Å | µ = 0.08 mm−1 |
c = 20.568 (4) Å | T = 113 K |
V = 4224.1 (15) Å3 | Block, yellow |
Z = 8 | 0.20 × 0.18 × 0.12 mm |
Rigaku Saturn CCD area-detector diffractometer | 4852 independent reflections |
Radiation source: rotating anode | 4332 reflections with I > 2σ(I) |
Confocal monochromator | Rint = 0.043 |
Detector resolution: 7.31 pixels mm-1 | θmax = 27.5°, θmin = 2.3° |
ω and φ scans | h = −22→20 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −15→14 |
Tmin = 0.984, Tmax = 0.990 | l = −20→26 |
32552 measured reflections |
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)] = 0.056 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.135 | w = 1/[σ2(Fo2) + (0.0569P)2 + 1.4565P] where P = (Fo2 + 2Fc2)/3 |
S = 1.12 | (Δ/σ)max = 0.001 |
4852 reflections | Δρmax = 0.23 e Å−3 |
278 parameters | Δρmin = −0.28 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0196 (15) |
C25H23N3O2 | V = 4224.1 (15) Å3 |
Mr = 397.46 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 17.685 (4) Å | µ = 0.08 mm−1 |
b = 11.613 (2) Å | T = 113 K |
c = 20.568 (4) Å | 0.20 × 0.18 × 0.12 mm |
Rigaku Saturn CCD area-detector diffractometer | 4852 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 4332 reflections with I > 2σ(I) |
Tmin = 0.984, Tmax = 0.990 | Rint = 0.043 |
32552 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 0 restraints |
wR(F2) = 0.135 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.12 | Δρmax = 0.23 e Å−3 |
4852 reflections | Δρmin = −0.28 e Å−3 |
278 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 | 0.03774 (6) | 0.05679 (9) | 0.39451 (5) | 0.0342 (3) | |
O2 | 0.22937 (8) | −0.44370 (11) | 0.33811 (7) | 0.0532 (4) | |
N1 | 0.04301 (7) | 0.34722 (11) | 0.44256 (6) | 0.0315 (3) | |
N2 | 0.02452 (7) | 0.25809 (10) | 0.39929 (6) | 0.0290 (3) | |
N3 | 0.11039 (8) | −0.01861 (11) | 0.50035 (6) | 0.0336 (3) | |
C1 | −0.01072 (8) | 0.28454 (13) | 0.33938 (7) | 0.0295 (3) | |
C2 | −0.04472 (9) | 0.19813 (14) | 0.30272 (7) | 0.0355 (4) | |
H2 | −0.0454 | 0.1211 | 0.3182 | 0.043* | |
C3 | −0.07760 (10) | 0.22525 (16) | 0.24341 (8) | 0.0411 (4) | |
H3 | −0.1002 | 0.1662 | 0.2181 | 0.049* | |
C4 | −0.07778 (9) | 0.33747 (17) | 0.22084 (8) | 0.0429 (4) | |
H4 | −0.0998 | 0.3554 | 0.1799 | 0.051* | |
C5 | −0.04572 (9) | 0.42288 (16) | 0.25824 (9) | 0.0438 (4) | |
H5 | −0.0468 | 0.5002 | 0.2432 | 0.053* | |
C6 | −0.01187 (9) | 0.39786 (14) | 0.31747 (8) | 0.0370 (4) | |
H6 | 0.0103 | 0.4574 | 0.3428 | 0.044* | |
C7 | 0.04567 (8) | 0.15137 (13) | 0.42300 (7) | 0.0283 (3) | |
C8 | 0.07883 (8) | 0.17516 (12) | 0.48542 (7) | 0.0277 (3) | |
C9 | 0.07448 (8) | 0.29768 (13) | 0.49309 (7) | 0.0299 (3) | |
C10 | 0.09843 (10) | 0.37075 (15) | 0.54929 (8) | 0.0404 (4) | |
H10A | 0.0878 | 0.4518 | 0.5396 | 0.061* | |
H10B | 0.1528 | 0.3608 | 0.5568 | 0.061* | |
H10C | 0.0704 | 0.3475 | 0.5883 | 0.061* | |
C11 | 0.11209 (8) | 0.08831 (13) | 0.52273 (7) | 0.0282 (3) | |
C12 | 0.15154 (8) | 0.11208 (13) | 0.58498 (7) | 0.0294 (3) | |
C13 | 0.11171 (9) | 0.12018 (16) | 0.64250 (8) | 0.0404 (4) | |
H13 | 0.0585 | 0.1095 | 0.6428 | 0.048* | |
C14 | 0.14969 (11) | 0.1440 (2) | 0.69986 (9) | 0.0541 (5) | |
H14 | 0.1223 | 0.1496 | 0.7395 | 0.065* | |
C15 | 0.22707 (11) | 0.15964 (19) | 0.69975 (9) | 0.0521 (5) | |
H15 | 0.2527 | 0.1767 | 0.7392 | 0.063* | |
C16 | 0.26706 (10) | 0.15051 (18) | 0.64253 (9) | 0.0482 (5) | |
H16 | 0.3203 | 0.1609 | 0.6425 | 0.058* | |
C17 | 0.22957 (9) | 0.12621 (15) | 0.58515 (8) | 0.0391 (4) | |
H17 | 0.2572 | 0.1192 | 0.5458 | 0.047* | |
C18 | 0.14345 (10) | −0.12099 (14) | 0.53081 (8) | 0.0359 (4) | |
H18A | 0.1058 | −0.1578 | 0.5597 | 0.043* | |
H18B | 0.1877 | −0.0986 | 0.5574 | 0.043* | |
C19 | 0.16749 (8) | −0.20464 (13) | 0.47878 (7) | 0.0306 (3) | |
C20 | 0.22998 (9) | −0.18247 (13) | 0.44036 (8) | 0.0339 (3) | |
H20 | 0.2575 | −0.1130 | 0.4464 | 0.041* | |
C21 | 0.25327 (9) | −0.26025 (15) | 0.39292 (8) | 0.0372 (4) | |
H21 | 0.2965 | −0.2448 | 0.3670 | 0.045* | |
C22 | 0.21200 (10) | −0.36117 (14) | 0.38418 (8) | 0.0385 (4) | |
C23 | 0.14925 (10) | −0.38372 (14) | 0.42166 (9) | 0.0407 (4) | |
H23 | 0.1213 | −0.4527 | 0.4152 | 0.049* | |
C24 | 0.12701 (9) | −0.30591 (14) | 0.46861 (8) | 0.0368 (4) | |
H24 | 0.0836 | −0.3216 | 0.4943 | 0.044* | |
C25 | 0.29322 (13) | −0.42679 (19) | 0.30302 (11) | 0.0608 (6) | |
H25A | 0.2890 | −0.3545 | 0.2787 | 0.091* | |
H25B | 0.3000 | −0.4908 | 0.2726 | 0.091* | |
H25C | 0.3368 | −0.4228 | 0.3324 | 0.091* | |
H3A | 0.0837 (12) | −0.0281 (18) | 0.4599 (11) | 0.057 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0433 (6) | 0.0283 (5) | 0.0310 (6) | 0.0064 (4) | −0.0066 (5) | −0.0041 (4) |
O2 | 0.0675 (9) | 0.0387 (7) | 0.0535 (8) | 0.0109 (6) | −0.0160 (7) | −0.0121 (6) |
N1 | 0.0359 (7) | 0.0267 (6) | 0.0319 (7) | 0.0000 (5) | −0.0018 (5) | −0.0022 (5) |
N2 | 0.0344 (6) | 0.0255 (6) | 0.0269 (6) | 0.0027 (5) | −0.0032 (5) | −0.0009 (5) |
N3 | 0.0400 (7) | 0.0312 (7) | 0.0296 (7) | 0.0079 (5) | −0.0056 (6) | 0.0008 (5) |
C1 | 0.0267 (7) | 0.0347 (8) | 0.0272 (7) | 0.0056 (6) | 0.0025 (6) | 0.0042 (6) |
C2 | 0.0405 (9) | 0.0354 (8) | 0.0307 (8) | 0.0088 (7) | −0.0035 (7) | −0.0005 (6) |
C3 | 0.0411 (9) | 0.0521 (10) | 0.0302 (8) | 0.0103 (8) | −0.0047 (7) | −0.0026 (7) |
C4 | 0.0336 (8) | 0.0629 (12) | 0.0320 (8) | 0.0079 (8) | −0.0004 (7) | 0.0131 (8) |
C5 | 0.0352 (9) | 0.0487 (10) | 0.0477 (10) | −0.0009 (7) | −0.0018 (8) | 0.0218 (8) |
C6 | 0.0329 (8) | 0.0357 (8) | 0.0425 (9) | −0.0016 (6) | −0.0005 (7) | 0.0108 (7) |
C7 | 0.0299 (7) | 0.0273 (7) | 0.0276 (7) | 0.0031 (6) | 0.0002 (6) | −0.0004 (5) |
C8 | 0.0280 (7) | 0.0285 (7) | 0.0267 (7) | 0.0015 (5) | −0.0001 (6) | −0.0012 (6) |
C9 | 0.0299 (7) | 0.0297 (7) | 0.0303 (7) | −0.0006 (6) | 0.0018 (6) | −0.0013 (6) |
C10 | 0.0497 (10) | 0.0336 (8) | 0.0378 (9) | −0.0015 (7) | −0.0051 (7) | −0.0052 (7) |
C11 | 0.0254 (7) | 0.0323 (8) | 0.0269 (7) | 0.0018 (6) | 0.0022 (6) | 0.0015 (6) |
C12 | 0.0286 (7) | 0.0318 (8) | 0.0279 (7) | −0.0016 (6) | −0.0013 (6) | 0.0031 (6) |
C13 | 0.0307 (8) | 0.0582 (11) | 0.0323 (8) | −0.0071 (7) | 0.0015 (7) | −0.0060 (7) |
C14 | 0.0499 (11) | 0.0811 (15) | 0.0314 (9) | −0.0092 (10) | 0.0008 (8) | −0.0084 (9) |
C15 | 0.0494 (11) | 0.0669 (13) | 0.0401 (10) | −0.0066 (9) | −0.0157 (8) | −0.0040 (9) |
C16 | 0.0314 (9) | 0.0588 (12) | 0.0544 (11) | −0.0081 (8) | −0.0117 (8) | 0.0021 (9) |
C17 | 0.0301 (8) | 0.0485 (10) | 0.0386 (9) | −0.0048 (7) | 0.0014 (7) | 0.0069 (7) |
C18 | 0.0413 (9) | 0.0319 (8) | 0.0345 (8) | 0.0082 (7) | −0.0011 (7) | 0.0058 (6) |
C19 | 0.0329 (7) | 0.0262 (7) | 0.0328 (8) | 0.0039 (6) | −0.0060 (6) | 0.0046 (6) |
C20 | 0.0355 (8) | 0.0295 (8) | 0.0368 (8) | −0.0004 (6) | −0.0045 (6) | 0.0012 (6) |
C21 | 0.0370 (8) | 0.0384 (9) | 0.0361 (8) | 0.0049 (7) | −0.0006 (7) | 0.0013 (7) |
C22 | 0.0477 (9) | 0.0313 (8) | 0.0363 (8) | 0.0100 (7) | −0.0142 (7) | −0.0058 (7) |
C23 | 0.0437 (9) | 0.0297 (8) | 0.0486 (10) | −0.0033 (7) | −0.0167 (8) | 0.0020 (7) |
C24 | 0.0338 (8) | 0.0338 (8) | 0.0427 (9) | −0.0014 (6) | −0.0095 (7) | 0.0070 (7) |
C25 | 0.0666 (13) | 0.0546 (12) | 0.0614 (13) | 0.0193 (10) | −0.0103 (11) | −0.0208 (10) |
O1—C7 | 1.2527 (18) | C11—C12 | 1.484 (2) |
O2—C25 | 1.354 (3) | C12—C13 | 1.380 (2) |
O2—C22 | 1.382 (2) | C12—C17 | 1.390 (2) |
N1—C9 | 1.3118 (19) | C13—C14 | 1.386 (2) |
N1—N2 | 1.4037 (17) | C13—H13 | 0.9500 |
N2—C7 | 1.3834 (19) | C14—C15 | 1.381 (3) |
N2—C1 | 1.4145 (19) | C14—H14 | 0.9500 |
N3—C11 | 1.325 (2) | C15—C16 | 1.377 (3) |
N3—C18 | 1.4656 (19) | C15—H15 | 0.9500 |
N3—H3A | 0.96 (2) | C16—C17 | 1.383 (2) |
C1—C6 | 1.391 (2) | C16—H16 | 0.9500 |
C1—C2 | 1.392 (2) | C17—H17 | 0.9500 |
C2—C3 | 1.388 (2) | C18—C19 | 1.507 (2) |
C2—H2 | 0.9500 | C18—H18A | 0.9900 |
C3—C4 | 1.383 (3) | C18—H18B | 0.9900 |
C3—H3 | 0.9500 | C19—C20 | 1.383 (2) |
C4—C5 | 1.377 (3) | C19—C24 | 1.393 (2) |
C4—H4 | 0.9500 | C20—C21 | 1.392 (2) |
C5—C6 | 1.388 (2) | C20—H20 | 0.9500 |
C5—H5 | 0.9500 | C21—C22 | 1.392 (2) |
C6—H6 | 0.9500 | C21—H21 | 0.9500 |
C7—C8 | 1.438 (2) | C22—C23 | 1.376 (3) |
C8—C11 | 1.397 (2) | C23—C24 | 1.380 (2) |
C8—C9 | 1.434 (2) | C23—H23 | 0.9500 |
C9—C10 | 1.495 (2) | C24—H24 | 0.9500 |
C10—H10A | 0.9800 | C25—H25A | 0.9800 |
C10—H10B | 0.9800 | C25—H25B | 0.9800 |
C10—H10C | 0.9800 | C25—H25C | 0.9800 |
C25—O2—C22 | 116.75 (16) | C17—C12—C11 | 119.41 (14) |
C9—N1—N2 | 106.13 (12) | C12—C13—C14 | 119.75 (15) |
C7—N2—N1 | 111.97 (11) | C12—C13—H13 | 120.1 |
C7—N2—C1 | 128.37 (13) | C14—C13—H13 | 120.1 |
N1—N2—C1 | 119.66 (12) | C15—C14—C13 | 120.36 (17) |
C11—N3—C18 | 127.07 (13) | C15—C14—H14 | 119.8 |
C11—N3—H3A | 114.7 (12) | C13—C14—H14 | 119.8 |
C18—N3—H3A | 118.2 (13) | C16—C15—C14 | 120.02 (17) |
C6—C1—C2 | 120.02 (14) | C16—C15—H15 | 120.0 |
C6—C1—N2 | 119.60 (14) | C14—C15—H15 | 120.0 |
C2—C1—N2 | 120.38 (14) | C15—C16—C17 | 119.93 (16) |
C3—C2—C1 | 119.58 (16) | C15—C16—H16 | 120.0 |
C3—C2—H2 | 120.2 | C17—C16—H16 | 120.0 |
C1—C2—H2 | 120.2 | C16—C17—C12 | 120.16 (16) |
C4—C3—C2 | 120.65 (17) | C16—C17—H17 | 119.9 |
C4—C3—H3 | 119.7 | C12—C17—H17 | 119.9 |
C2—C3—H3 | 119.7 | N3—C18—C19 | 109.38 (12) |
C5—C4—C3 | 119.34 (16) | N3—C18—H18A | 109.8 |
C5—C4—H4 | 120.3 | C19—C18—H18A | 109.8 |
C3—C4—H4 | 120.3 | N3—C18—H18B | 109.8 |
C4—C5—C6 | 121.13 (16) | C19—C18—H18B | 109.8 |
C4—C5—H5 | 119.4 | H18A—C18—H18B | 108.2 |
C6—C5—H5 | 119.4 | C20—C19—C24 | 118.83 (15) |
C5—C6—C1 | 119.25 (16) | C20—C19—C18 | 120.76 (14) |
C5—C6—H6 | 120.4 | C24—C19—C18 | 120.40 (14) |
C1—C6—H6 | 120.4 | C19—C20—C21 | 121.08 (15) |
O1—C7—N2 | 126.17 (13) | C19—C20—H20 | 119.5 |
O1—C7—C8 | 129.17 (14) | C21—C20—H20 | 119.5 |
N2—C7—C8 | 104.65 (12) | C20—C21—C22 | 118.79 (16) |
C11—C8—C9 | 132.73 (14) | C20—C21—H21 | 120.6 |
C11—C8—C7 | 121.55 (13) | C22—C21—H21 | 120.6 |
C9—C8—C7 | 105.49 (12) | C23—C22—O2 | 115.55 (16) |
N1—C9—C8 | 111.77 (13) | C23—C22—C21 | 120.70 (15) |
N1—C9—C10 | 118.93 (14) | O2—C22—C21 | 123.75 (17) |
C8—C9—C10 | 129.28 (14) | C22—C23—C24 | 119.82 (15) |
C9—C10—H10A | 109.5 | C22—C23—H23 | 120.1 |
C9—C10—H10B | 109.5 | C24—C23—H23 | 120.1 |
H10A—C10—H10B | 109.5 | C23—C24—C19 | 120.77 (16) |
C9—C10—H10C | 109.5 | C23—C24—H24 | 119.6 |
H10A—C10—H10C | 109.5 | C19—C24—H24 | 119.6 |
H10B—C10—H10C | 109.5 | O2—C25—H25A | 109.5 |
N3—C11—C8 | 118.43 (13) | O2—C25—H25B | 109.5 |
N3—C11—C12 | 119.01 (13) | H25A—C25—H25B | 109.5 |
C8—C11—C12 | 122.52 (13) | O2—C25—H25C | 109.5 |
C13—C12—C17 | 119.77 (14) | H25A—C25—H25C | 109.5 |
C13—C12—C11 | 120.82 (13) | H25B—C25—H25C | 109.5 |
C9—N1—N2—C7 | −0.73 (16) | C7—C8—C11—N3 | −2.2 (2) |
C9—N1—N2—C1 | 180.00 (12) | C9—C8—C11—C12 | 1.8 (2) |
C7—N2—C1—C6 | −165.17 (15) | C7—C8—C11—C12 | 175.44 (13) |
N1—N2—C1—C6 | 14.0 (2) | N3—C11—C12—C13 | −97.80 (19) |
C7—N2—C1—C2 | 15.4 (2) | C8—C11—C12—C13 | 84.6 (2) |
N1—N2—C1—C2 | −165.43 (13) | N3—C11—C12—C17 | 82.15 (19) |
C6—C1—C2—C3 | 2.0 (2) | C8—C11—C12—C17 | −95.49 (18) |
N2—C1—C2—C3 | −178.63 (14) | C17—C12—C13—C14 | 0.9 (3) |
C1—C2—C3—C4 | −0.9 (2) | C11—C12—C13—C14 | −179.12 (17) |
C2—C3—C4—C5 | −0.8 (3) | C12—C13—C14—C15 | 0.0 (3) |
C3—C4—C5—C6 | 1.4 (3) | C13—C14—C15—C16 | −0.6 (3) |
C4—C5—C6—C1 | −0.3 (2) | C14—C15—C16—C17 | 0.3 (3) |
C2—C1—C6—C5 | −1.4 (2) | C15—C16—C17—C12 | 0.6 (3) |
N2—C1—C6—C5 | 179.19 (14) | C13—C12—C17—C16 | −1.2 (3) |
N1—N2—C7—O1 | −178.48 (14) | C11—C12—C17—C16 | 178.80 (16) |
C1—N2—C7—O1 | 0.7 (2) | C11—N3—C18—C19 | −148.95 (15) |
N1—N2—C7—C8 | 0.62 (16) | N3—C18—C19—C20 | 72.31 (18) |
C1—N2—C7—C8 | 179.82 (13) | N3—C18—C19—C24 | −107.74 (16) |
O1—C7—C8—C11 | 3.6 (2) | C24—C19—C20—C21 | −1.0 (2) |
N2—C7—C8—C11 | −175.44 (13) | C18—C19—C20—C21 | 178.92 (14) |
O1—C7—C8—C9 | 178.78 (15) | C19—C20—C21—C22 | 0.6 (2) |
N2—C7—C8—C9 | −0.28 (15) | C25—O2—C22—C23 | −176.45 (16) |
N2—N1—C9—C8 | 0.52 (16) | C25—O2—C22—C21 | 4.4 (2) |
N2—N1—C9—C10 | −178.04 (13) | C20—C21—C22—C23 | 0.1 (2) |
C11—C8—C9—N1 | 174.23 (15) | C20—C21—C22—O2 | 179.21 (14) |
C7—C8—C9—N1 | −0.16 (17) | O2—C22—C23—C24 | −179.45 (14) |
C11—C8—C9—C10 | −7.4 (3) | C21—C22—C23—C24 | −0.3 (2) |
C7—C8—C9—C10 | 178.22 (15) | C22—C23—C24—C19 | −0.2 (2) |
C18—N3—C11—C8 | 178.28 (14) | C20—C19—C24—C23 | 0.9 (2) |
C18—N3—C11—C12 | 0.5 (2) | C18—C19—C24—C23 | −179.10 (14) |
C9—C8—C11—N3 | −175.86 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.96 (2) | 1.86 (2) | 2.6751 (17) | 141.3 (18) |
C2—H2···O1 | 0.95 | 2.28 | 2.8956 (19) | 122 |
C6—H6···N1 | 0.95 | 2.49 | 2.812 (2) | 100 |
C25—H25C···O1i | 0.98 | 2.57 | 3.538 (2) | 169 |
C24—H24···N1ii | 0.95 | 2.61 | 3.551 (2) | 174 |
Symmetry codes: (i) −x+1/2, y−1/2, z; (ii) −x, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C25H23N3O2 |
Mr | 397.46 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 113 |
a, b, c (Å) | 17.685 (4), 11.613 (2), 20.568 (4) |
V (Å3) | 4224.1 (15) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.20 × 0.18 × 0.12 |
Data collection | |
Diffractometer | Rigaku Saturn CCD area-detector |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.984, 0.990 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 32552, 4852, 4332 |
Rint | 0.043 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.135, 1.12 |
No. of reflections | 4852 |
No. of parameters | 278 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.28 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.96 (2) | 1.86 (2) | 2.6751 (17) | 141.3 (18) |
C2—H2···O1 | 0.95 | 2.28 | 2.8956 (19) | 122.1 |
C6—H6···N1 | 0.95 | 2.49 | 2.812 (2) | 100 |
C25—H25C···O1i | 0.98 | 2.57 | 3.538 (2) | 168.6 |
C24—H24···N1ii | 0.95 | 2.61 | 3.551 (2) | 174 |
Symmetry codes: (i) −x+1/2, y−1/2, z; (ii) −x, −y, −z+1. |
Acknowledgements
The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (grant No. 20772066).
References
Li, J.-Z., Yu, W.-J. & Du, X.-Y. (1997). Chin. J. Appl. Chem. 14, 98–100. CAS Google Scholar
Liu, J.-M., Yang, R.-D. & Ma, T.-R. (1980). Chem. J. Chin. Univ. 1, 23–29. CAS Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wang, J.-L., Yang, Y., Zhang, X. & Miao, F.-M. (2003). Acta Cryst. E59, o430–o432. Web of Science CSD CrossRef IUCr Journals Google Scholar
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1-Phenyl-3-methyl-4-benzoylpyrazolon-5-one (HPMBP), an effective β-diketonate, is widely used and well known for its extractive ability. In recent years, HPMBP and its metal complexes have also been found to have good antibacterial and biological properties. Its metal complexes have analgesic activity (Liu et al., 1980; Li et al., 1997; Zhou et al., 1999). In order to develop new medicines, we have synthesized the title compound, (I), and its structure is reported here.
The structure of (I) is shown in Fig. 1. The dihedral angles formed by the pyrazolone ring with the three benzene rings C1···C6, C12···C17 and C19···C24 are 14.59 (7), 79.35 (5) and 87.10 (6)°, respectively. The O atom of the 3-methyl-1-phenylpyrazol-5-one moiety and the N atom of the amino group are available for coordination with metals. The pyrazole ring is planar and atoms O1, C7, C8, C11 and N3 are almost coplanar fwith an rmsd value of 0.0093 and the largest deviation is 0.0144 (10) Å for atom C7. The dihedral angle between this mean plane and the pyrazoline ring of PMBP is 3.53 (7)°, close to the value of 3.56 (3)° found in 4-{[3,4-dihydro-5- methyl-3-oxo-2-phenyl-2H-pyrazol-4-ylidene(phenyl)methylamino}- 1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one(Wang et al., 2003). The bond lengths within this part of the molecule lie between classical single- and double-bond lengths, indicating extensive conjugation. A strong intramolecular N3—H3A···O1 hydrogen bond (Table 1) is observed, leading to a keto-enamine form. The molecule is further stabilized by a C—H···O weak intramolecular hydrogen bond (Table 1). The crystal structure also involves two weak intermolecular(C—H···O and C—H···N) hydrogen-bond interactions(Fig. 2).