organic compounds
(E)-5-[(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)iminomethyl]-2-methoxyphenyl 4-chlorobenzenesulfonate
aDepartment Of Electrical Engineering, North China Electric Power University, Baoding City, Hebei Province 071003, People's Republic of China
*Correspondence e-mail: lei_tianxiang@163.com
In the title compound, C25H22ClN3O5S, the two N atoms in the pyrazole ring have a pyramidal environment, with the sums of the valence angles around them being 349.3 (2) and 357.5 (2)°. The phenyl ring is twisted by 50.97 (12)° from the pyrazole mean plane. In the crystal, pairs of weak C—H⋯O hydrogen bonds link the molecules into inversion dimers.
Related literature
For general background to the use of Schiff base derivatives in the development of protein and enzyme mimics, see: Santos et al. (2001). For related structures, see: Zhang et al. (2006); Han et al. (2008); Guo et al. (2010). For reference bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1999); cell SAINT (Bruker, 1999); 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/S160053681202627X/cv5310sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681202627X/cv5310Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S160053681202627X/cv5310Isup3.cml
An anhydrous ethanol solution (100 ml) of 5-formyl-2-methoxyphenyl 4-chlorobenzenesulfonate (3.27 g, 10 mmol) was added to an anhydrous ethanol solution (100 ml) of 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one (2.03 g, 10 mmol) and the mixture refluxed for 3 h under N2, giving a yellow precipitate. The product was isolated, recrystallized from acetonitrile, and then dried in a vacuum to give pure compound (I) in 76% yield. Yellow single crystals of the title compound suitable for X-ray analysis were obtained by slow evaporation of an acetonitrile solution.
The H atoms were included in calculated positions and refined using a riding model approximation. Constrained C—H bond lengths and isotropic U parameters: 0.93 Å and Uiso(H) = 1.2Ueq(C) for Csp2—H; 0.96 Å and Uiso(H) = 1.5Ueq(C) for methyl C—H.
Schiff bases have extensively been studied because of their potentially biological activities such as protein and enzyme mimics (Santos et al., 2001). Among the large number of compounds, 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one forms a variety of
with and the synthesis and crystal structures of some of them, such as (E)-5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)methyl) -2-methoxyphenyl 4-bromobenzenesulfonate (Guo et al., 2010), (E)-4-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)methyl) phenyl 4-bromobenzenesulfonate (Han et al., 2008) and (E)-4-(2-(4-Chlorobenzyloxy)benzylideneamino) -2,3-dimethyl-1-phenyl-1,2-dihydropyrazol-5-one (Zhang et al., 2006) have been reported. Herewith we report the synthesis and of the title Schiff base compound.In the title molecule (Fig. 1), bond lengths and angles are within normal ranges (Allen et al., 1987). Two N atoms in the pyrazole ring have a pyramidal environment with the sums of the valence angles around them of 349.3 (2) and 357.5 (2)°, respectively. The phenyl ring is twisted at 50.97 (12)° from the pyrazole mean plane. The central benzene ring (C7—C12) with three attached atoms (C14/O3/O4) is nearly planar, with an r.m.s. deviation for fitted atoms of 0.0392 Å. The mean plane of this fragment formss dihedral angles of 32.89 (8)°, 38.18 (10)° and 82.42 (7)°, respectively, with the the pyrazolone ring (C15—C17/N1—N3/O5), the chlorobenzene ring (C1—C6) and the terminal phenyl ring (C20—C25). Similar values of 32.02 (14)°, 37.49 (18)° and 80.52 (13)°, respectively, were observed in isostructural (E)-5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol -4-ylimino)methyl)-2-methoxyphenyl 4-bromobenzenesulfonate (Guo et al., 2010).
In the crystal, non-classical intermolecular C11—H11···O5═ C16 hydrogen bonds (Table 1) form inversion-related dimers (Fig. 2).
For general background to the use of Schiff base derivatives in the development of protein and enzyme mimics, see: Santos et al. (2001). For related structures, see: Zhang et al. (2006); Han et al. (2008); Guo et al. (2010). For reference bond-length data, see: Allen et al. (1987).
Data collection: SMART (Bruker, 1999); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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).C25H22ClN3O5S | F(000) = 1064 |
Mr = 511.98 | Dx = 1.382 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5316 reflections |
a = 11.063 (2) Å | θ = 2.7–27.9° |
b = 10.153 (2) Å | µ = 0.28 mm−1 |
c = 22.159 (4) Å | T = 294 K |
β = 98.73 (3)° | Block, yellow |
V = 2460.1 (8) Å3 | 0.30 × 0.26 × 0.18 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 4315 independent reflections |
Radiation source: fine-focus sealed tube | 3016 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.052 |
φ and ω scans | θmax = 25.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→13 |
Tmin = 0.907, Tmax = 0.951 | k = −12→11 |
19683 measured reflections | l = −26→26 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.154 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0919P)2] where P = (Fo2 + 2Fc2)/3 |
4315 reflections | (Δ/σ)max < 0.001 |
319 parameters | Δρmax = 0.34 e Å−3 |
0 restraints | Δρmin = −0.45 e Å−3 |
C25H22ClN3O5S | V = 2460.1 (8) Å3 |
Mr = 511.98 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.063 (2) Å | µ = 0.28 mm−1 |
b = 10.153 (2) Å | T = 294 K |
c = 22.159 (4) Å | 0.30 × 0.26 × 0.18 mm |
β = 98.73 (3)° |
Bruker SMART APEX CCD area-detector diffractometer | 4315 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3016 reflections with I > 2σ(I) |
Tmin = 0.907, Tmax = 0.951 | Rint = 0.052 |
19683 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 0 restraints |
wR(F2) = 0.154 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.34 e Å−3 |
4315 reflections | Δρmin = −0.45 e Å−3 |
319 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 > 2σ(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 | ||
Cl1 | 0.47353 (11) | 1.05947 (9) | 0.12284 (7) | 0.1381 (5) | |
S1 | 0.44039 (6) | 0.44761 (7) | 0.13133 (3) | 0.0563 (3) | |
N1 | 0.80799 (17) | 0.1811 (2) | 0.00538 (9) | 0.0454 (5) | |
N2 | 0.91575 (19) | 0.0090 (2) | −0.11867 (10) | 0.0515 (6) | |
N3 | 0.88868 (18) | −0.09430 (19) | −0.08078 (9) | 0.0477 (5) | |
O1 | 0.36954 (18) | 0.4061 (2) | 0.17629 (10) | 0.0786 (7) | |
O2 | 0.41778 (17) | 0.3950 (2) | 0.07100 (9) | 0.0729 (6) | |
O3 | 0.57713 (14) | 0.40946 (15) | 0.16147 (7) | 0.0497 (5) | |
O4 | 0.70559 (15) | 0.62701 (17) | 0.19204 (8) | 0.0548 (5) | |
O5 | 0.92591 (17) | 0.23713 (16) | −0.11241 (9) | 0.0617 (5) | |
C1 | 0.4426 (2) | 0.6207 (3) | 0.12761 (12) | 0.0516 (7) | |
C2 | 0.4230 (3) | 0.6931 (3) | 0.17786 (15) | 0.0699 (8) | |
H2 | 0.4046 | 0.6510 | 0.2126 | 0.084* | |
C3 | 0.4310 (3) | 0.8292 (3) | 0.17608 (19) | 0.0835 (10) | |
H3 | 0.4171 | 0.8797 | 0.2094 | 0.100* | |
C4 | 0.4600 (3) | 0.8884 (3) | 0.1241 (2) | 0.0829 (10) | |
C5 | 0.4784 (3) | 0.8173 (4) | 0.07370 (18) | 0.0809 (10) | |
H5 | 0.4966 | 0.8596 | 0.0389 | 0.097* | |
C6 | 0.4693 (2) | 0.6812 (3) | 0.07553 (14) | 0.0651 (8) | |
H6 | 0.4812 | 0.6311 | 0.0418 | 0.078* | |
C7 | 0.67271 (19) | 0.4424 (2) | 0.12844 (10) | 0.0406 (6) | |
C8 | 0.7020 (2) | 0.3589 (2) | 0.08434 (11) | 0.0440 (6) | |
H8 | 0.6593 | 0.2804 | 0.0761 | 0.053* | |
C9 | 0.7967 (2) | 0.3923 (2) | 0.05159 (11) | 0.0426 (6) | |
C10 | 0.8574 (2) | 0.5106 (2) | 0.06549 (11) | 0.0480 (6) | |
H10 | 0.9176 | 0.5362 | 0.0428 | 0.058* | |
C11 | 0.8311 (2) | 0.5919 (2) | 0.11203 (11) | 0.0462 (6) | |
H11 | 0.8754 | 0.6690 | 0.1213 | 0.055* | |
C12 | 0.7384 (2) | 0.5579 (2) | 0.14468 (11) | 0.0425 (6) | |
C13 | 0.7683 (3) | 0.7483 (3) | 0.20859 (15) | 0.0705 (9) | |
H13A | 0.8534 | 0.7307 | 0.2222 | 0.106* | |
H13B | 0.7334 | 0.7898 | 0.2409 | 0.106* | |
H13C | 0.7602 | 0.8058 | 0.1738 | 0.106* | |
C14 | 0.8334 (2) | 0.3028 (3) | 0.00548 (11) | 0.0479 (6) | |
H14 | 0.8762 | 0.3361 | −0.0242 | 0.057* | |
C15 | 0.8452 (2) | 0.0964 (2) | −0.03798 (11) | 0.0426 (6) | |
C16 | 0.8973 (2) | 0.1298 (2) | −0.09185 (11) | 0.0464 (6) | |
C17 | 0.8386 (2) | −0.0375 (2) | −0.03448 (11) | 0.0454 (6) | |
C18 | 0.7882 (3) | −0.1191 (3) | 0.01137 (13) | 0.0641 (8) | |
H18A | 0.7636 | −0.0631 | 0.0422 | 0.096* | |
H18B | 0.8497 | −0.1794 | 0.0299 | 0.096* | |
H18C | 0.7188 | −0.1676 | −0.0083 | 0.096* | |
C19 | 0.8505 (3) | −0.2198 (3) | −0.10901 (15) | 0.0740 (9) | |
H19A | 0.8321 | −0.2801 | −0.0783 | 0.111* | |
H19B | 0.9152 | −0.2551 | −0.1285 | 0.111* | |
H19C | 0.7790 | −0.2070 | −0.1389 | 0.111* | |
C20 | 0.9860 (2) | −0.0126 (2) | −0.16676 (11) | 0.0464 (6) | |
C21 | 1.0877 (2) | −0.0934 (3) | −0.15858 (13) | 0.0590 (7) | |
H21 | 1.1128 | −0.1339 | −0.1212 | 0.071* | |
C22 | 1.1517 (3) | −0.1131 (3) | −0.20709 (15) | 0.0713 (9) | |
H22 | 1.2197 | −0.1681 | −0.2022 | 0.086* | |
C23 | 1.1156 (3) | −0.0521 (3) | −0.26230 (15) | 0.0746 (10) | |
H23 | 1.1578 | −0.0676 | −0.2949 | 0.090* | |
C24 | 1.0169 (3) | 0.0320 (3) | −0.26911 (13) | 0.0698 (9) | |
H24 | 0.9948 | 0.0764 | −0.3058 | 0.084* | |
C25 | 0.9499 (2) | 0.0510 (3) | −0.22172 (12) | 0.0581 (7) | |
H25 | 0.8817 | 0.1057 | −0.2268 | 0.070* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1248 (9) | 0.0543 (6) | 0.2232 (15) | 0.0018 (5) | −0.0119 (9) | 0.0116 (7) |
S1 | 0.0484 (4) | 0.0558 (5) | 0.0687 (5) | −0.0162 (3) | 0.0215 (3) | −0.0118 (3) |
N1 | 0.0461 (11) | 0.0448 (13) | 0.0460 (12) | −0.0022 (10) | 0.0092 (9) | −0.0025 (9) |
N2 | 0.0614 (13) | 0.0431 (12) | 0.0546 (14) | −0.0067 (10) | 0.0239 (11) | −0.0020 (10) |
N3 | 0.0568 (12) | 0.0386 (12) | 0.0500 (12) | −0.0078 (10) | 0.0156 (10) | −0.0030 (9) |
O1 | 0.0710 (13) | 0.0767 (14) | 0.0990 (16) | −0.0271 (11) | 0.0480 (12) | −0.0073 (12) |
O2 | 0.0650 (12) | 0.0821 (15) | 0.0712 (14) | −0.0193 (10) | 0.0095 (10) | −0.0306 (11) |
O3 | 0.0537 (10) | 0.0459 (10) | 0.0535 (11) | −0.0081 (8) | 0.0208 (8) | 0.0004 (8) |
O4 | 0.0549 (11) | 0.0530 (11) | 0.0576 (11) | −0.0096 (8) | 0.0124 (9) | −0.0172 (8) |
O5 | 0.0811 (13) | 0.0442 (11) | 0.0669 (13) | −0.0084 (9) | 0.0345 (11) | 0.0020 (9) |
C1 | 0.0391 (14) | 0.0532 (16) | 0.0631 (17) | −0.0016 (11) | 0.0102 (12) | −0.0045 (13) |
C2 | 0.0656 (18) | 0.065 (2) | 0.083 (2) | −0.0015 (16) | 0.0242 (16) | −0.0099 (17) |
C3 | 0.073 (2) | 0.066 (2) | 0.111 (3) | 0.0068 (17) | 0.010 (2) | −0.026 (2) |
C4 | 0.0586 (19) | 0.058 (2) | 0.126 (3) | 0.0053 (16) | −0.006 (2) | 0.009 (2) |
C5 | 0.067 (2) | 0.073 (2) | 0.099 (3) | 0.0016 (17) | −0.0010 (19) | 0.026 (2) |
C6 | 0.0547 (17) | 0.069 (2) | 0.069 (2) | 0.0006 (14) | −0.0002 (14) | 0.0035 (15) |
C7 | 0.0411 (13) | 0.0379 (13) | 0.0448 (14) | −0.0021 (10) | 0.0125 (11) | 0.0016 (10) |
C8 | 0.0463 (13) | 0.0356 (13) | 0.0512 (15) | −0.0052 (11) | 0.0111 (11) | 0.0004 (11) |
C9 | 0.0453 (13) | 0.0372 (13) | 0.0469 (14) | −0.0023 (11) | 0.0122 (11) | 0.0010 (10) |
C10 | 0.0462 (14) | 0.0453 (15) | 0.0558 (16) | −0.0061 (11) | 0.0184 (12) | 0.0029 (12) |
C11 | 0.0426 (13) | 0.0395 (14) | 0.0560 (16) | −0.0081 (11) | 0.0061 (11) | −0.0025 (11) |
C12 | 0.0423 (14) | 0.0383 (13) | 0.0458 (14) | 0.0016 (11) | 0.0034 (11) | −0.0020 (11) |
C13 | 0.0780 (19) | 0.0533 (18) | 0.081 (2) | −0.0145 (15) | 0.0125 (16) | −0.0280 (15) |
C14 | 0.0472 (14) | 0.0502 (16) | 0.0491 (15) | −0.0022 (12) | 0.0163 (12) | −0.0024 (12) |
C15 | 0.0400 (13) | 0.0410 (14) | 0.0476 (14) | −0.0054 (11) | 0.0095 (11) | −0.0009 (11) |
C16 | 0.0429 (13) | 0.0451 (15) | 0.0530 (15) | −0.0036 (11) | 0.0131 (11) | −0.0041 (12) |
C17 | 0.0429 (14) | 0.0480 (15) | 0.0462 (15) | −0.0034 (11) | 0.0098 (11) | 0.0003 (11) |
C18 | 0.080 (2) | 0.0533 (17) | 0.0636 (19) | −0.0114 (14) | 0.0245 (16) | 0.0040 (14) |
C19 | 0.094 (2) | 0.0513 (18) | 0.083 (2) | −0.0229 (16) | 0.0352 (19) | −0.0200 (16) |
C20 | 0.0508 (15) | 0.0472 (15) | 0.0439 (14) | −0.0112 (12) | 0.0153 (11) | −0.0061 (11) |
C21 | 0.0636 (17) | 0.0621 (18) | 0.0544 (17) | 0.0006 (14) | 0.0187 (14) | −0.0044 (13) |
C22 | 0.072 (2) | 0.071 (2) | 0.078 (2) | 0.0013 (16) | 0.0342 (17) | −0.0096 (17) |
C23 | 0.090 (2) | 0.080 (2) | 0.063 (2) | −0.0271 (19) | 0.0385 (18) | −0.0237 (17) |
C24 | 0.089 (2) | 0.078 (2) | 0.0429 (16) | −0.0328 (19) | 0.0130 (15) | −0.0034 (14) |
C25 | 0.0553 (16) | 0.0638 (19) | 0.0547 (17) | −0.0154 (13) | 0.0066 (13) | −0.0030 (14) |
Cl1—C4 | 1.743 (3) | C9—C10 | 1.388 (3) |
S1—O1 | 1.4218 (18) | C9—C14 | 1.470 (3) |
S1—O2 | 1.4263 (19) | C10—C11 | 1.386 (3) |
S1—O3 | 1.6055 (18) | C10—H10 | 0.9300 |
S1—C1 | 1.760 (3) | C11—C12 | 1.385 (3) |
N1—C14 | 1.267 (3) | C11—H11 | 0.9300 |
N1—C15 | 1.397 (3) | C13—H13A | 0.9600 |
N2—C16 | 1.391 (3) | C13—H13B | 0.9600 |
N2—N3 | 1.404 (3) | C13—H13C | 0.9600 |
N2—C20 | 1.428 (3) | C14—H14 | 0.9300 |
N3—C17 | 1.365 (3) | C15—C17 | 1.365 (3) |
N3—C19 | 1.453 (3) | C15—C16 | 1.443 (3) |
O3—C7 | 1.414 (2) | C17—C18 | 1.484 (3) |
O4—C12 | 1.357 (3) | C18—H18A | 0.9600 |
O4—C13 | 1.434 (3) | C18—H18B | 0.9600 |
O5—C16 | 1.241 (3) | C18—H18C | 0.9600 |
C1—C2 | 1.379 (4) | C19—H19A | 0.9600 |
C1—C6 | 1.379 (4) | C19—H19B | 0.9600 |
C2—C3 | 1.386 (4) | C19—H19C | 0.9600 |
C2—H2 | 0.9300 | C20—C21 | 1.381 (4) |
C3—C4 | 1.379 (5) | C20—C25 | 1.383 (3) |
C3—H3 | 0.9300 | C21—C22 | 1.389 (3) |
C4—C5 | 1.371 (5) | C21—H21 | 0.9300 |
C5—C6 | 1.386 (5) | C22—C23 | 1.375 (4) |
C5—H5 | 0.9300 | C22—H22 | 0.9300 |
C6—H6 | 0.9300 | C23—C24 | 1.377 (4) |
C7—C8 | 1.370 (3) | C23—H23 | 0.9300 |
C7—C12 | 1.397 (3) | C24—C25 | 1.388 (4) |
C8—C9 | 1.404 (3) | C24—H24 | 0.9300 |
C8—H8 | 0.9300 | C25—H25 | 0.9300 |
O1—S1—O2 | 120.58 (13) | C11—C12—C7 | 118.2 (2) |
O1—S1—O3 | 102.82 (12) | O4—C13—H13A | 109.5 |
O2—S1—O3 | 108.64 (11) | O4—C13—H13B | 109.5 |
O1—S1—C1 | 110.01 (12) | H13A—C13—H13B | 109.5 |
O2—S1—C1 | 109.40 (14) | O4—C13—H13C | 109.5 |
O3—S1—C1 | 103.96 (10) | H13A—C13—H13C | 109.5 |
C14—N1—C15 | 120.9 (2) | H13B—C13—H13C | 109.5 |
C16—N2—N3 | 110.16 (19) | N1—C14—C9 | 121.3 (2) |
C16—N2—C20 | 125.9 (2) | N1—C14—H14 | 119.4 |
N3—N2—C20 | 121.39 (19) | C9—C14—H14 | 119.4 |
C17—N3—N2 | 106.35 (19) | C17—C15—N1 | 123.4 (2) |
C17—N3—C19 | 124.7 (2) | C17—C15—C16 | 108.2 (2) |
N2—N3—C19 | 118.2 (2) | N1—C15—C16 | 128.3 (2) |
C7—O3—S1 | 117.31 (14) | O5—C16—N2 | 123.7 (2) |
C12—O4—C13 | 117.80 (19) | O5—C16—C15 | 131.8 (2) |
C2—C1—C6 | 121.2 (3) | N2—C16—C15 | 104.4 (2) |
C2—C1—S1 | 119.3 (2) | C15—C17—N3 | 110.3 (2) |
C6—C1—S1 | 119.4 (2) | C15—C17—C18 | 128.6 (2) |
C1—C2—C3 | 119.4 (3) | N3—C17—C18 | 121.1 (2) |
C1—C2—H2 | 120.3 | C17—C18—H18A | 109.5 |
C3—C2—H2 | 120.3 | C17—C18—H18B | 109.5 |
C4—C3—C2 | 118.9 (3) | H18A—C18—H18B | 109.5 |
C4—C3—H3 | 120.6 | C17—C18—H18C | 109.5 |
C2—C3—H3 | 120.6 | H18A—C18—H18C | 109.5 |
C5—C4—C3 | 122.2 (3) | H18B—C18—H18C | 109.5 |
C5—C4—Cl1 | 119.1 (3) | N3—C19—H19A | 109.5 |
C3—C4—Cl1 | 118.7 (3) | N3—C19—H19B | 109.5 |
C4—C5—C6 | 118.7 (3) | H19A—C19—H19B | 109.5 |
C4—C5—H5 | 120.6 | N3—C19—H19C | 109.5 |
C6—C5—H5 | 120.6 | H19A—C19—H19C | 109.5 |
C1—C6—C5 | 119.6 (3) | H19B—C19—H19C | 109.5 |
C1—C6—H6 | 120.2 | C21—C20—C25 | 120.9 (2) |
C5—C6—H6 | 120.2 | C21—C20—N2 | 121.2 (2) |
C8—C7—C12 | 122.3 (2) | C25—C20—N2 | 117.9 (2) |
C8—C7—O3 | 119.9 (2) | C20—C21—C22 | 119.0 (3) |
C12—C7—O3 | 117.74 (19) | C20—C21—H21 | 120.5 |
C7—C8—C9 | 119.7 (2) | C22—C21—H21 | 120.5 |
C7—C8—H8 | 120.2 | C23—C22—C21 | 120.7 (3) |
C9—C8—H8 | 120.2 | C23—C22—H22 | 119.7 |
C10—C9—C8 | 117.9 (2) | C21—C22—H22 | 119.7 |
C10—C9—C14 | 121.0 (2) | C22—C23—C24 | 119.7 (3) |
C8—C9—C14 | 121.1 (2) | C22—C23—H23 | 120.2 |
C11—C10—C9 | 122.1 (2) | C24—C23—H23 | 120.2 |
C11—C10—H10 | 118.9 | C23—C24—C25 | 120.6 (3) |
C9—C10—H10 | 118.9 | C23—C24—H24 | 119.7 |
C12—C11—C10 | 119.7 (2) | C25—C24—H24 | 119.7 |
C12—C11—H11 | 120.1 | C20—C25—C24 | 119.0 (3) |
C10—C11—H11 | 120.1 | C20—C25—H25 | 120.5 |
O4—C12—C11 | 125.5 (2) | C24—C25—H25 | 120.5 |
O4—C12—C7 | 116.35 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···O5i | 0.93 | 2.43 | 3.199 (3) | 140 |
Symmetry code: (i) −x+2, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C25H22ClN3O5S |
Mr | 511.98 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 294 |
a, b, c (Å) | 11.063 (2), 10.153 (2), 22.159 (4) |
β (°) | 98.73 (3) |
V (Å3) | 2460.1 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.28 |
Crystal size (mm) | 0.30 × 0.26 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.907, 0.951 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19683, 4315, 3016 |
Rint | 0.052 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.154, 1.00 |
No. of reflections | 4315 |
No. of parameters | 319 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.34, −0.45 |
Computer programs: SMART (Bruker, 1999), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···O5i | 0.93 | 2.43 | 3.199 (3) | 140 |
Symmetry code: (i) −x+2, −y+1, −z. |
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Bruker (1999). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Guo, M.-J., Chen, X. & Yao, J.-X. (2010). Acta Cryst. E66, o1360. Web of Science CSD CrossRef IUCr Journals Google Scholar
Han, J.-R., Tian, X., Zhen, X.-L., Li, Z.-C. & Liu, S.-X. (2008). Acta Cryst. E64, o2244. Web of Science CrossRef IUCr Journals Google Scholar
Santos, M. L. P., Bagatin, I. A., Pereira, E. M. & Ferreira, A. M. D. C. (2001). J. Chem. Soc. Dalton Trans. pp. 838–844. Web of Science CrossRef Google Scholar
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zhang, Q.-Z., Zhao, Y.-L., Chen, X. & Yu, M. (2006). Acta Cryst. E62, o5252–o5254. 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.
Schiff bases have extensively been studied because of their potentially biological activities such as protein and enzyme mimics (Santos et al., 2001). Among the large number of compounds, 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one forms a variety of Schiff bases with aldehydes, and the synthesis and crystal structures of some of them, such as (E)-5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)methyl) -2-methoxyphenyl 4-bromobenzenesulfonate (Guo et al., 2010), (E)-4-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)methyl) phenyl 4-bromobenzenesulfonate (Han et al., 2008) and (E)-4-(2-(4-Chlorobenzyloxy)benzylideneamino) -2,3-dimethyl-1-phenyl-1,2-dihydropyrazol-5-one (Zhang et al., 2006) have been reported. Herewith we report the synthesis and crystal structure of the title Schiff base compound.
In the title molecule (Fig. 1), bond lengths and angles are within normal ranges (Allen et al., 1987). Two N atoms in the pyrazole ring have a pyramidal environment with the sums of the valence angles around them of 349.3 (2) and 357.5 (2)°, respectively. The phenyl ring is twisted at 50.97 (12)° from the pyrazole mean plane. The central benzene ring (C7—C12) with three attached atoms (C14/O3/O4) is nearly planar, with an r.m.s. deviation for fitted atoms of 0.0392 Å. The mean plane of this fragment formss dihedral angles of 32.89 (8)°, 38.18 (10)° and 82.42 (7)°, respectively, with the the pyrazolone ring (C15—C17/N1—N3/O5), the chlorobenzene ring (C1—C6) and the terminal phenyl ring (C20—C25). Similar values of 32.02 (14)°, 37.49 (18)° and 80.52 (13)°, respectively, were observed in isostructural (E)-5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol -4-ylimino)methyl)-2-methoxyphenyl 4-bromobenzenesulfonate (Guo et al., 2010).
In the crystal, non-classical intermolecular C11—H11···O5═ C16 hydrogen bonds (Table 1) form inversion-related dimers (Fig. 2).