organic compounds
(4Z)-4-[(2,6-Diisopropylanilino)(phenyl)methylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
aDepartment of Media and Design, Asia University, Taichung 413, Taiwan, and bDepartment of Biotechnology, Asia University, Taichung 413, Taiwan
*Correspondence e-mail: cychang@asia.edu.tw
In the title compound, C29H31N3O, the three terminal benzene rings are oriented at dihedral angles of 20.7 (3), 65.8 (3) and 72.6 (3)° with respect to the central pyrazolone ring. Intramolecular N—H⋯O hydrogen bonding occurs between the imine and carbonyl groups. Intermolecular C—H⋯π interactions are present in the crystal structure.
Related literature
For the catalysis of N,O-bidentate ligands, see: Wang et al. (1998); Connor et al. (2003); Sun et al. (2003); Lü et al. (2006). For related structures, see: Wang et al. (2003); Li et al. (2009); Xu et al. (2010).
polymerization by complexes containingExperimental
Crystal data
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Data collection: CrysAlis CCD (Oxford Diffraction, 2005); cell CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED; 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/S1600536811000602/xu5120sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811000602/xu5120Isup2.hkl
The title compound was synthesized by refluxing a mixture of 1-phenyl-3-methyl-4-benzoylpyrazol-5-one (10 mmol) and 2,6-diisopropylaniline (10 mmol) in ethanol (60 ml) for 16 h. Volatile materials were removed under vacuum and the residue was washed twice from cold ethanol solution to give yellow solids. The resulting solids were recrystallized from ethanol solution to yield yellow crystals after 2 d.
The imino H atom was located in a difference Fourier map and refined isotropically. Other H atoms were placed in idealized positions and constrained to ride on their parent atoms with C—H = 0.95–1.00 Å, Uiso(H) = 1.5Ueq(C) for methyl and 1.2Ueq(C) for the others.
Data collection: CrysAlis CCD (Oxford Diffraction, 2005); cell
CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED (Oxford Diffraction, 2008); 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 molecular structure of (I), thermal ellipsoids for non-H atoms are shown at 25% probability levels. |
C29H31N3O | F(000) = 936 |
Mr = 437.57 | Dx = 1.172 Mg m−3 |
Orthorhombic, Pna21 | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: P 2c -2n | Cell parameters from 7431 reflections |
a = 12.9094 (6) Å | θ = 4.1–71.6° |
b = 10.6947 (5) Å | µ = 0.56 mm−1 |
c = 17.9676 (8) Å | T = 110 K |
V = 2480.6 (2) Å3 | Parallelpiped, yellow |
Z = 4 | 0.6 × 0.5 × 0.4 mm |
Oxford Diffraction Xcalibur Sapphire3 Gemini diffractometer | 3755 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 3643 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
Detector resolution: 16.0690 pixels mm-1 | θmax = 71.6°, θmin = 4.8° |
ω scans | h = −12→15 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2008) | k = −13→12 |
Tmin = 0.702, Tmax = 1.00 | l = −22→18 |
8437 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)] = 0.036 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.100 | w = 1/[σ2(Fo2) + (0.080P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.09 | (Δ/σ)max < 0.001 |
3755 reflections | Δρmax = 0.27 e Å−3 |
302 parameters | Δρmin = −0.21 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 1293 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.2 (2) |
C29H31N3O | V = 2480.6 (2) Å3 |
Mr = 437.57 | Z = 4 |
Orthorhombic, Pna21 | Cu Kα radiation |
a = 12.9094 (6) Å | µ = 0.56 mm−1 |
b = 10.6947 (5) Å | T = 110 K |
c = 17.9676 (8) Å | 0.6 × 0.5 × 0.4 mm |
Oxford Diffraction Xcalibur Sapphire3 Gemini diffractometer | 3755 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2008) | 3643 reflections with I > 2σ(I) |
Tmin = 0.702, Tmax = 1.00 | Rint = 0.026 |
8437 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.100 | Δρmax = 0.27 e Å−3 |
S = 1.09 | Δρmin = −0.21 e Å−3 |
3755 reflections | Absolute structure: Flack (1983), 1293 Friedel pairs |
302 parameters | Absolute structure parameter: 0.2 (2) |
1 restraint |
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 | ||
O | 0.91287 (8) | 0.45238 (12) | 0.24514 (7) | 0.0298 (3) | |
N1 | 0.93713 (10) | 0.44539 (12) | 0.37452 (8) | 0.0264 (3) | |
N2 | 0.87895 (11) | 0.47065 (13) | 0.43864 (8) | 0.0277 (3) | |
N3 | 0.72027 (10) | 0.52807 (13) | 0.21416 (8) | 0.0249 (3) | |
H3A | 0.7776 (18) | 0.502 (2) | 0.2066 (14) | 0.032 (5)* | |
C1 | 0.88237 (12) | 0.46862 (13) | 0.31018 (10) | 0.0252 (3) | |
C2 | 0.78251 (11) | 0.51329 (14) | 0.33598 (10) | 0.0243 (3) | |
C3 | 0.78841 (12) | 0.50848 (14) | 0.41567 (10) | 0.0252 (3) | |
C4 | 0.70441 (13) | 0.53150 (18) | 0.47178 (11) | 0.0333 (4) | |
H4A | 0.7326 | 0.5214 | 0.5221 | 0.050* | |
H4B | 0.6481 | 0.4714 | 0.4641 | 0.050* | |
H4C | 0.6777 | 0.6167 | 0.4658 | 0.050* | |
C5 | 1.04093 (11) | 0.40332 (14) | 0.38254 (10) | 0.0274 (3) | |
C6 | 1.08976 (13) | 0.34062 (15) | 0.32476 (11) | 0.0316 (4) | |
H6A | 1.0547 | 0.3269 | 0.2790 | 0.038* | |
C7 | 1.19107 (14) | 0.29789 (16) | 0.33456 (12) | 0.0368 (4) | |
H7A | 1.2252 | 0.2554 | 0.2951 | 0.044* | |
C8 | 1.24239 (13) | 0.31699 (16) | 0.40159 (11) | 0.0361 (4) | |
H8A | 1.3107 | 0.2861 | 0.4084 | 0.043* | |
C9 | 1.19329 (14) | 0.38119 (17) | 0.45825 (12) | 0.0365 (4) | |
H9A | 1.2288 | 0.3956 | 0.5038 | 0.044* | |
C10 | 1.09248 (13) | 0.42494 (17) | 0.44944 (10) | 0.0326 (4) | |
H10A | 1.0592 | 0.4691 | 0.4886 | 0.039* | |
C11 | 0.70334 (12) | 0.54389 (14) | 0.28638 (9) | 0.0227 (3) | |
C12 | 0.59977 (12) | 0.58874 (14) | 0.31176 (9) | 0.0250 (3) | |
C13 | 0.58906 (14) | 0.70320 (16) | 0.34759 (11) | 0.0330 (4) | |
H13A | 0.6477 | 0.7557 | 0.3542 | 0.040* | |
C14 | 0.49253 (15) | 0.74109 (18) | 0.37387 (12) | 0.0407 (4) | |
H14A | 0.4854 | 0.8194 | 0.3983 | 0.049* | |
C15 | 0.40749 (14) | 0.6652 (2) | 0.36452 (13) | 0.0447 (5) | |
H15A | 0.3418 | 0.6910 | 0.3827 | 0.054* | |
C16 | 0.41744 (14) | 0.5512 (2) | 0.32857 (13) | 0.0438 (5) | |
H16A | 0.3586 | 0.4989 | 0.3224 | 0.053* | |
C17 | 0.51324 (13) | 0.51316 (17) | 0.30150 (11) | 0.0322 (4) | |
H17A | 0.5196 | 0.4357 | 0.2761 | 0.039* | |
C18 | 0.65579 (11) | 0.56969 (14) | 0.15362 (9) | 0.0234 (3) | |
C19 | 0.65238 (11) | 0.69774 (14) | 0.13647 (9) | 0.0260 (3) | |
C20 | 0.59414 (11) | 0.73324 (15) | 0.07474 (10) | 0.0285 (3) | |
H20A | 0.5891 | 0.8193 | 0.0622 | 0.034* | |
C21 | 0.54324 (11) | 0.64521 (16) | 0.03119 (10) | 0.0296 (3) | |
H21A | 0.5043 | 0.6714 | −0.0109 | 0.035* | |
C22 | 0.54908 (12) | 0.51948 (16) | 0.04900 (10) | 0.0285 (3) | |
H22A | 0.5144 | 0.4599 | 0.0187 | 0.034* | |
C23 | 0.60517 (11) | 0.47919 (15) | 0.11070 (9) | 0.0253 (3) | |
C24 | 0.71736 (13) | 0.79226 (16) | 0.17900 (10) | 0.0305 (4) | |
H24A | 0.7239 | 0.7617 | 0.2314 | 0.037* | |
C25 | 0.82671 (14) | 0.79704 (18) | 0.14543 (12) | 0.0387 (4) | |
H25A | 0.8560 | 0.7126 | 0.1442 | 0.058* | |
H25B | 0.8708 | 0.8512 | 0.1760 | 0.058* | |
H25C | 0.8231 | 0.8304 | 0.0947 | 0.058* | |
C26 | 0.66815 (17) | 0.92275 (18) | 0.18176 (13) | 0.0439 (5) | |
H26A | 0.5986 | 0.9168 | 0.2034 | 0.066* | |
H26B | 0.6633 | 0.9567 | 0.1312 | 0.066* | |
H26C | 0.7110 | 0.9781 | 0.2124 | 0.066* | |
C27 | 0.61474 (14) | 0.34042 (16) | 0.12972 (11) | 0.0331 (4) | |
H27A | 0.6263 | 0.3337 | 0.1846 | 0.040* | |
C28 | 0.7098 (2) | 0.2853 (2) | 0.09084 (16) | 0.0579 (6) | |
H28A | 0.7712 | 0.3345 | 0.1038 | 0.087* | |
H28B | 0.6994 | 0.2874 | 0.0368 | 0.087* | |
H28C | 0.7197 | 0.1986 | 0.1070 | 0.087* | |
C29 | 0.5179 (2) | 0.2645 (2) | 0.11084 (16) | 0.0581 (7) | |
H29A | 0.5289 | 0.1769 | 0.1247 | 0.087* | |
H29B | 0.5042 | 0.2701 | 0.0573 | 0.087* | |
H29C | 0.4586 | 0.2980 | 0.1384 | 0.087* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O | 0.0258 (5) | 0.0416 (6) | 0.0220 (6) | 0.0060 (4) | −0.0012 (4) | 0.0005 (5) |
N1 | 0.0249 (6) | 0.0309 (6) | 0.0234 (7) | −0.0021 (5) | −0.0020 (5) | 0.0028 (6) |
N2 | 0.0303 (7) | 0.0319 (7) | 0.0208 (7) | −0.0063 (5) | −0.0024 (5) | 0.0025 (6) |
N3 | 0.0206 (6) | 0.0307 (7) | 0.0233 (7) | 0.0047 (5) | −0.0019 (5) | −0.0008 (5) |
C1 | 0.0231 (7) | 0.0250 (7) | 0.0274 (9) | −0.0023 (5) | −0.0018 (6) | 0.0021 (6) |
C2 | 0.0246 (7) | 0.0242 (7) | 0.0241 (9) | −0.0028 (5) | 0.0005 (6) | 0.0005 (6) |
C3 | 0.0281 (7) | 0.0252 (7) | 0.0221 (8) | −0.0054 (6) | −0.0010 (6) | 0.0009 (6) |
C4 | 0.0324 (8) | 0.0442 (10) | 0.0232 (9) | −0.0026 (7) | 0.0024 (7) | 0.0020 (7) |
C5 | 0.0267 (7) | 0.0242 (6) | 0.0314 (9) | −0.0038 (5) | −0.0055 (6) | 0.0070 (6) |
C6 | 0.0311 (8) | 0.0282 (7) | 0.0354 (10) | 0.0029 (6) | −0.0109 (6) | −0.0003 (7) |
C7 | 0.0336 (9) | 0.0310 (8) | 0.0459 (12) | 0.0070 (7) | −0.0096 (8) | −0.0029 (8) |
C8 | 0.0285 (8) | 0.0316 (8) | 0.0483 (12) | 0.0022 (7) | −0.0113 (8) | 0.0074 (7) |
C9 | 0.0327 (8) | 0.0411 (9) | 0.0355 (10) | −0.0039 (7) | −0.0126 (7) | 0.0075 (8) |
C10 | 0.0298 (8) | 0.0388 (9) | 0.0292 (9) | −0.0037 (6) | −0.0039 (7) | 0.0054 (7) |
C11 | 0.0249 (7) | 0.0207 (6) | 0.0224 (8) | −0.0028 (5) | 0.0003 (6) | −0.0002 (6) |
C12 | 0.0266 (7) | 0.0290 (7) | 0.0194 (8) | 0.0020 (5) | 0.0012 (6) | 0.0054 (6) |
C13 | 0.0383 (9) | 0.0283 (8) | 0.0324 (9) | 0.0034 (6) | 0.0065 (7) | 0.0028 (7) |
C14 | 0.0475 (10) | 0.0383 (8) | 0.0363 (10) | 0.0168 (7) | 0.0092 (9) | 0.0069 (9) |
C15 | 0.0309 (9) | 0.0629 (12) | 0.0403 (11) | 0.0185 (8) | 0.0105 (7) | 0.0127 (9) |
C16 | 0.0273 (8) | 0.0613 (12) | 0.0428 (12) | −0.0018 (8) | 0.0036 (7) | 0.0079 (10) |
C17 | 0.0279 (8) | 0.0375 (8) | 0.0310 (10) | −0.0024 (6) | 0.0005 (7) | 0.0020 (7) |
C18 | 0.0198 (6) | 0.0297 (7) | 0.0205 (7) | 0.0028 (5) | 0.0020 (6) | 0.0014 (6) |
C19 | 0.0229 (7) | 0.0300 (7) | 0.0251 (8) | 0.0009 (5) | 0.0068 (6) | 0.0015 (6) |
C20 | 0.0272 (8) | 0.0285 (7) | 0.0297 (9) | 0.0052 (6) | 0.0074 (6) | 0.0071 (7) |
C21 | 0.0207 (7) | 0.0421 (9) | 0.0259 (8) | 0.0055 (6) | −0.0001 (6) | 0.0081 (7) |
C22 | 0.0229 (7) | 0.0365 (8) | 0.0262 (9) | −0.0004 (6) | −0.0016 (6) | 0.0002 (7) |
C23 | 0.0224 (6) | 0.0304 (8) | 0.0231 (8) | 0.0007 (5) | 0.0014 (6) | 0.0004 (6) |
C24 | 0.0336 (8) | 0.0295 (8) | 0.0283 (9) | −0.0029 (6) | 0.0052 (7) | −0.0005 (6) |
C25 | 0.0325 (8) | 0.0419 (9) | 0.0418 (11) | −0.0094 (7) | 0.0048 (8) | −0.0044 (8) |
C26 | 0.0485 (11) | 0.0328 (9) | 0.0504 (13) | −0.0002 (7) | 0.0082 (9) | −0.0057 (9) |
C27 | 0.0433 (9) | 0.0287 (8) | 0.0272 (9) | −0.0015 (7) | −0.0068 (7) | 0.0003 (7) |
C28 | 0.0776 (16) | 0.0373 (10) | 0.0587 (16) | 0.0200 (10) | 0.0137 (12) | −0.0005 (10) |
C29 | 0.0722 (15) | 0.0434 (11) | 0.0586 (15) | −0.0228 (10) | −0.0260 (12) | 0.0142 (11) |
O—C1 | 1.245 (2) | C15—H15A | 0.9500 |
N1—C1 | 1.378 (2) | C16—C17 | 1.390 (3) |
N1—N2 | 1.402 (2) | C16—H16A | 0.9500 |
N1—C5 | 1.421 (2) | C17—H17A | 0.9500 |
N2—C3 | 1.304 (2) | C18—C19 | 1.404 (2) |
N3—C11 | 1.327 (2) | C18—C23 | 1.400 (2) |
N3—C18 | 1.440 (2) | C19—C20 | 1.393 (2) |
N3—H3A | 0.80 (2) | C19—C24 | 1.520 (2) |
C1—C2 | 1.451 (2) | C20—C21 | 1.389 (3) |
C2—C11 | 1.395 (2) | C20—H20A | 0.9500 |
C2—C3 | 1.435 (2) | C21—C22 | 1.384 (2) |
C3—C4 | 1.501 (2) | C21—H21A | 0.9500 |
C4—H4A | 0.9800 | C22—C23 | 1.392 (2) |
C4—H4B | 0.9800 | C22—H22A | 0.9500 |
C4—H4C | 0.9800 | C23—C27 | 1.528 (2) |
C5—C6 | 1.387 (3) | C24—C25 | 1.536 (2) |
C5—C10 | 1.393 (2) | C24—C26 | 1.534 (2) |
C6—C7 | 1.397 (2) | C24—H24A | 1.0000 |
C6—H6A | 0.9500 | C25—H25A | 0.9800 |
C7—C8 | 1.390 (3) | C25—H25B | 0.9800 |
C7—H7A | 0.9500 | C25—H25C | 0.9800 |
C8—C9 | 1.382 (3) | C26—H26A | 0.9800 |
C8—H8A | 0.9500 | C26—H26B | 0.9800 |
C9—C10 | 1.392 (3) | C26—H26C | 0.9800 |
C9—H9A | 0.9500 | C27—C28 | 1.531 (3) |
C10—H10A | 0.9500 | C27—C29 | 1.529 (3) |
C11—C12 | 1.492 (2) | C27—H27A | 1.0000 |
C12—C13 | 1.390 (2) | C28—H28A | 0.9800 |
C12—C17 | 1.391 (2) | C28—H28B | 0.9800 |
C13—C14 | 1.393 (2) | C28—H28C | 0.9800 |
C13—H13A | 0.9500 | C29—H29A | 0.9800 |
C14—C15 | 1.375 (3) | C29—H29B | 0.9800 |
C14—H14A | 0.9500 | C29—H29C | 0.9800 |
C15—C16 | 1.386 (3) | ||
C1—N1—N2 | 112.33 (12) | C12—C17—C16 | 119.86 (18) |
C1—N1—C5 | 128.77 (15) | C12—C17—H17A | 120.1 |
N2—N1—C5 | 118.88 (14) | C16—C17—H17A | 120.1 |
C3—N2—N1 | 106.26 (13) | C19—C18—C23 | 122.60 (14) |
C11—N3—C18 | 127.16 (14) | C19—C18—N3 | 119.03 (14) |
C11—N3—H3A | 111.2 (18) | C23—C18—N3 | 118.19 (14) |
C18—N3—H3A | 120.9 (19) | C20—C19—C18 | 117.23 (15) |
O—C1—N1 | 126.87 (14) | C20—C19—C24 | 121.14 (15) |
O—C1—C2 | 128.80 (15) | C18—C19—C24 | 121.40 (14) |
N1—C1—C2 | 104.32 (14) | C21—C20—C19 | 121.27 (15) |
C11—C2—C3 | 133.22 (15) | C21—C20—H20A | 119.4 |
C11—C2—C1 | 121.61 (16) | C19—C20—H20A | 119.4 |
C3—C2—C1 | 105.06 (14) | C22—C21—C20 | 120.15 (15) |
N2—C3—C2 | 112.00 (15) | C22—C21—H21A | 119.9 |
N2—C3—C4 | 119.07 (16) | C20—C21—H21A | 119.9 |
C2—C3—C4 | 128.76 (15) | C21—C22—C23 | 120.86 (15) |
C3—C4—H4A | 109.5 | C21—C22—H22A | 119.6 |
C3—C4—H4B | 109.5 | C23—C22—H22A | 119.6 |
H4A—C4—H4B | 109.5 | C22—C23—C18 | 117.87 (15) |
C3—C4—H4C | 109.5 | C22—C23—C27 | 121.38 (15) |
H4A—C4—H4C | 109.5 | C18—C23—C27 | 120.71 (14) |
H4B—C4—H4C | 109.5 | C19—C24—C25 | 109.39 (14) |
C6—C5—C10 | 120.58 (15) | C19—C24—C26 | 113.12 (15) |
C6—C5—N1 | 120.37 (15) | C25—C24—C26 | 111.28 (15) |
C10—C5—N1 | 119.05 (16) | C19—C24—H24A | 107.6 |
C5—C6—C7 | 119.29 (17) | C25—C24—H24A | 107.6 |
C5—C6—H6A | 120.4 | C26—C24—H24A | 107.6 |
C7—C6—H6A | 120.4 | C24—C25—H25A | 109.5 |
C8—C7—C6 | 120.51 (19) | C24—C25—H25B | 109.5 |
C8—C7—H7A | 119.7 | H25A—C25—H25B | 109.5 |
C6—C7—H7A | 119.7 | C24—C25—H25C | 109.5 |
C9—C8—C7 | 119.53 (16) | H25A—C25—H25C | 109.5 |
C9—C8—H8A | 120.2 | H25B—C25—H25C | 109.5 |
C7—C8—H8A | 120.2 | C24—C26—H26A | 109.5 |
C8—C9—C10 | 120.80 (17) | C24—C26—H26B | 109.5 |
C8—C9—H9A | 119.6 | H26A—C26—H26B | 109.5 |
C10—C9—H9A | 119.6 | C24—C26—H26C | 109.5 |
C9—C10—C5 | 119.27 (18) | H26A—C26—H26C | 109.5 |
C9—C10—H10A | 120.4 | H26B—C26—H26C | 109.5 |
C5—C10—H10A | 120.4 | C28—C27—C23 | 109.70 (16) |
N3—C11—C2 | 118.31 (14) | C28—C27—C29 | 110.5 (2) |
N3—C11—C12 | 119.19 (14) | C23—C27—C29 | 113.57 (16) |
C2—C11—C12 | 122.46 (15) | C28—C27—H27A | 107.6 |
C13—C12—C17 | 119.56 (15) | C23—C27—H27A | 107.6 |
C13—C12—C11 | 120.92 (14) | C29—C27—H27A | 107.6 |
C17—C12—C11 | 119.49 (15) | C27—C28—H28A | 109.5 |
C12—C13—C14 | 120.14 (17) | C27—C28—H28B | 109.5 |
C12—C13—H13A | 119.9 | H28A—C28—H28B | 109.5 |
C14—C13—H13A | 119.9 | C27—C28—H28C | 109.5 |
C15—C14—C13 | 120.07 (19) | H28A—C28—H28C | 109.5 |
C15—C14—H14A | 120.0 | H28B—C28—H28C | 109.5 |
C13—C14—H14A | 120.0 | C27—C29—H29A | 109.5 |
C14—C15—C16 | 120.14 (17) | C27—C29—H29B | 109.5 |
C14—C15—H15A | 119.9 | H29A—C29—H29B | 109.5 |
C16—C15—H15A | 119.9 | C27—C29—H29C | 109.5 |
C15—C16—C17 | 120.22 (18) | H29A—C29—H29C | 109.5 |
C15—C16—H16A | 119.9 | H29B—C29—H29C | 109.5 |
C17—C16—H16A | 119.9 | ||
C1—N1—N2—C3 | 0.44 (16) | C2—C11—C12—C13 | 66.2 (2) |
C5—N1—N2—C3 | 179.29 (13) | N3—C11—C12—C17 | 65.8 (2) |
N2—N1—C1—O | −178.34 (15) | C2—C11—C12—C17 | −111.77 (19) |
C5—N1—C1—O | 2.9 (2) | C17—C12—C13—C14 | 0.8 (3) |
N2—N1—C1—C2 | 0.69 (15) | C11—C12—C13—C14 | −177.13 (17) |
C5—N1—C1—C2 | −178.02 (13) | C12—C13—C14—C15 | 0.1 (3) |
O—C1—C2—C11 | 0.8 (2) | C13—C14—C15—C16 | −0.4 (3) |
N1—C1—C2—C11 | −178.21 (14) | C14—C15—C16—C17 | −0.3 (3) |
O—C1—C2—C3 | 177.56 (16) | C13—C12—C17—C16 | −1.5 (3) |
N1—C1—C2—C3 | −1.45 (16) | C11—C12—C17—C16 | 176.53 (18) |
N1—N2—C3—C2 | −1.44 (17) | C15—C16—C17—C12 | 1.2 (3) |
N1—N2—C3—C4 | 174.25 (14) | C11—N3—C18—C19 | 72.6 (2) |
C11—C2—C3—N2 | 178.08 (16) | C11—N3—C18—C23 | −112.15 (18) |
C1—C2—C3—N2 | 1.86 (18) | C23—C18—C19—C20 | 1.2 (2) |
C11—C2—C3—C4 | 2.9 (3) | N3—C18—C19—C20 | 176.16 (14) |
C1—C2—C3—C4 | −173.31 (15) | C23—C18—C19—C24 | −173.31 (14) |
C1—N1—C5—C6 | −21.9 (2) | N3—C18—C19—C24 | 1.7 (2) |
N2—N1—C5—C6 | 159.49 (14) | C18—C19—C20—C21 | −1.2 (2) |
C1—N1—C5—C10 | 158.71 (16) | C24—C19—C20—C21 | 173.28 (14) |
N2—N1—C5—C10 | −19.9 (2) | C19—C20—C21—C22 | 0.5 (2) |
C10—C5—C6—C7 | 0.7 (3) | C20—C21—C22—C23 | 0.4 (2) |
N1—C5—C6—C7 | −178.67 (15) | C21—C22—C23—C18 | −0.4 (2) |
C5—C6—C7—C8 | 0.5 (3) | C21—C22—C23—C27 | −178.27 (15) |
C6—C7—C8—C9 | −1.4 (3) | C19—C18—C23—C22 | −0.4 (2) |
C7—C8—C9—C10 | 1.2 (3) | N3—C18—C23—C22 | −175.40 (14) |
C8—C9—C10—C5 | 0.0 (3) | C19—C18—C23—C27 | 177.48 (15) |
C6—C5—C10—C9 | −1.0 (2) | N3—C18—C23—C27 | 2.5 (2) |
N1—C5—C10—C9 | 178.42 (15) | C20—C19—C24—C25 | −90.19 (18) |
C18—N3—C11—C2 | −170.51 (14) | C18—C19—C24—C25 | 84.08 (19) |
C18—N3—C11—C12 | 11.8 (2) | C20—C19—C24—C26 | 34.5 (2) |
C3—C2—C11—N3 | −173.95 (17) | C18—C19—C24—C26 | −151.26 (16) |
C1—C2—C11—N3 | 1.8 (2) | C22—C23—C27—C28 | 89.8 (2) |
C3—C2—C11—C12 | 3.7 (3) | C18—C23—C27—C28 | −88.0 (2) |
C1—C2—C11—C12 | 179.36 (13) | C22—C23—C27—C29 | −34.4 (2) |
N3—C11—C12—C13 | −116.23 (18) | C18—C23—C27—C29 | 147.85 (19) |
Cg1 and Cg2 are the centroids of the C18–C23 and N1,N2,C1–C3 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O | 0.80 (2) | 1.95 (2) | 2.6734 (17) | 149 (3) |
C9—H9A···Cg1i | 0.95 | 2.73 | 3.601 (2) | 153 |
C14—H14A···Cg2ii | 0.96 | 2.76 | 3.467 (2) | 132 |
Symmetry codes: (i) −x+2, −y+1, z+1/2; (ii) x−1/2, −y+3/2, z. |
Experimental details
Crystal data | |
Chemical formula | C29H31N3O |
Mr | 437.57 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 110 |
a, b, c (Å) | 12.9094 (6), 10.6947 (5), 17.9676 (8) |
V (Å3) | 2480.6 (2) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.56 |
Crystal size (mm) | 0.6 × 0.5 × 0.4 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Sapphire3 Gemini diffractometer |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2008) |
Tmin, Tmax | 0.702, 1.00 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8437, 3755, 3643 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.100, 1.09 |
No. of reflections | 3755 |
No. of parameters | 302 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.27, −0.21 |
Absolute structure | Flack (1983), 1293 Friedel pairs |
Absolute structure parameter | 0.2 (2) |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2005), CrysAlis RED (Oxford Diffraction, 2008), SHELXTL (Sheldrick, 2008).
Cg1 and Cg2 are the centroids of the C18–C23 and N1,N2,C1–C3 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O | 0.80 (2) | 1.95 (2) | 2.6734 (17) | 149 (3) |
C9—H9A···Cg1i | 0.95 | 2.73 | 3.601 (2) | 153 |
C14—H14A···Cg2ii | 0.96 | 2.76 | 3.467 (2) | 132 |
Symmetry codes: (i) −x+2, −y+1, z+1/2; (ii) x−1/2, −y+3/2, z. |
Acknowledgements
We gratefully acknowledge financial support in part from the National Science Council, Taiwan. Helpful comments from the reviewers are also greatly appreciated.
References
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β-Ketoimine is an important family of N,O-bidentate ligands because of their ease of preparation and modification of steric and electronic effects. They are particularly interested for catalysis. For instance, their Cu complexes have shown to be effective in norbornene (NBE) polymerization (Lü et al., 2006) in the presence of MAO and the Ni-based systems are used in ethylene polymerization (Wang et al., 1998; Connor et al., 2003; Sun et al., 2003). As part of this work, the title compound (I) was prepared from β-diketone and 2,6-diisopropylaniline.
The molecular structure of (I) is shown in Fig. 1. The dihedral angles between the pyrazolone ring and C5–C10, C12–C17 and C18–C23 phenyl rings are 20.7 (3), 65.8 (3) and 72.6 (3)°, respectively. The C11–N3 distance of 1.333 (3) Å is similar to that for a C–N single bond (1.338 (8) Å (Li et al., 2009) but is much longer than that for a C=N double bond (1.318 (3)Å) (Lü et al., 2006) in pyrazolone compounds.
A strong intramolecular N(3)—H(3 A)···O hydrogen bond (Table 1.) is observed with N···O distance of 2.672 (2) Å, which is much shorter than their van der Waals radius. The intermolecular C—H···π interactions are present in the crystal structure (Table 1).