In the title compound, C
28H
25N
5O
2, the carbonyl group of the 5-methyl-2-phenylpyrazol-3-one moiety, the adjacent double bond and the amine N atom of antipyrine are essentially coplanar, the largest deviation from the mean plane being 0.049 (2) Å. The compound is a neutral tridentate ligand in an enamine–keto tautomeric form, due to a strong intramolecular N—H
O hydrogen bond. The dihedral angle between the two pyrazolone rings is 86.2 (3)°, reducing steric hindrance.
Supporting information
CCDC reference: 209923
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.006 Å
- R factor = 0.053
- wR factor = 0.151
- Data-to-parameter ratio = 13.2
checkCIF results
No syntax errors found
ADDSYM reports no extra symmetry
0.1 mol of PMBP in 20 ml e thanol solution and 0.1 mol of ATP in 20 ml e thanol solution were refluxed together for 3–4 h over a steam bath. Excess solvent was removed by evaporation and the solution was cooled in an ice bath with stirring. The product separated out as a cream-colored powder, which was collected and dried in air. After washing with cold anhydrous ethanol several times, the compound was dried in a vacuum over CaCl2. Yellow–green single crystals suitable for X-ray analysis were obtained by slow cooling of a warmed ethanol solution. Elemental analysis for C28H25N5O2: calculated C 72.6, H 5.44, N 15.1%; found: C 71.2, H 5.32, N 15.3%.
The high value of Rint is due to the relatively poor crystal quality, compounded by the room-temperature data collection. All aryl and methyl H atoms were positioned geometrically (C—H = 0.93 and 0.96 Å, respectively) and refined as riding atoms. The amine H atom was located from a difference map and refined with an isotropic displacement parameters; N—H = 0.84 (4) Å.
Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1999); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
4-{[3,4-Dihydro-5-methyl-3-oxo-2-phenyl-2
H-pyrazol-4- ylidene](phenyl)methylamino}-1,5-dimethyl-2-phenyl-1
H-pyrazol-3(2
H)-one
top
Crystal data top
C28H25N5O2 | F(000) = 976 |
Mr = 463.53 | Dx = 1.272 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 890 reflections |
a = 6.986 (3) Å | θ = 2.3–21.9° |
b = 27.904 (11) Å | µ = 0.08 mm−1 |
c = 12.804 (5) Å | T = 293 K |
β = 104.127 (8)° | Block, yellow–green |
V = 2420.4 (16) Å3 | 0.25 × 0.22 × 0.20 mm |
Z = 4 | |
Data collection top
Bruker SMART 1000 CCD area-detector diffractometer | 1677 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.097 |
Graphite monochromator | θmax = 25.0°, θmin = 1.5° |
ϕ and ω scans | h = −8→8 |
10034 measured reflections | k = −33→33 |
4285 independent reflections | l = −15→10 |
Refinement top
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)] = 0.053 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.151 | w = 1/[σ2(Fo2) + (0.0577P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.85 | (Δ/σ)max = 0.007 |
4285 reflections | Δρmax = 0.16 e Å−3 |
324 parameters | Δρmin = −0.16 e Å−3 |
0 restraints | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0098 (10) |
Crystal data top
C28H25N5O2 | V = 2420.4 (16) Å3 |
Mr = 463.53 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 6.986 (3) Å | µ = 0.08 mm−1 |
b = 27.904 (11) Å | T = 293 K |
c = 12.804 (5) Å | 0.25 × 0.22 × 0.20 mm |
β = 104.127 (8)° | |
Data collection top
Bruker SMART 1000 CCD area-detector diffractometer | 1677 reflections with I > 2σ(I) |
10034 measured reflections | Rint = 0.097 |
4285 independent reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.151 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.85 | Δρmax = 0.16 e Å−3 |
4285 reflections | Δρmin = −0.16 e Å−3 |
324 parameters | |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
N1 | 0.8053 (4) | 0.30110 (11) | 1.2087 (3) | 0.0609 (9) | |
N2 | 0.7831 (5) | 0.33165 (12) | 1.2917 (3) | 0.0696 (10) | |
N3 | 0.3035 (4) | 0.34004 (12) | 0.9759 (3) | 0.0540 (9) | |
H3 | 0.379 (5) | 0.3176 (13) | 0.969 (3) | 0.082 (16)* | |
N4 | 0.1191 (4) | 0.40868 (10) | 0.7347 (2) | 0.0493 (8) | |
N5 | −0.0430 (4) | 0.37926 (10) | 0.7359 (2) | 0.0503 (8) | |
O1 | 0.6275 (3) | 0.28144 (9) | 1.0348 (2) | 0.0632 (8) | |
O2 | 0.4422 (3) | 0.41282 (9) | 0.83848 (19) | 0.0673 (8) | |
C1 | 0.6489 (5) | 0.30525 (14) | 1.1194 (3) | 0.0519 (10) | |
C2 | 0.5266 (5) | 0.34211 (12) | 1.1459 (3) | 0.0473 (9) | |
C3 | 0.6174 (6) | 0.35534 (14) | 1.2548 (3) | 0.0590 (11) | |
C4 | 0.5472 (6) | 0.38901 (15) | 1.3281 (3) | 0.0858 (14) | |
H4A | 0.6293 | 0.3860 | 1.3998 | 0.129* | |
H4B | 0.4132 | 0.3814 | 1.3283 | 0.129* | |
H4C | 0.5538 | 0.4213 | 1.3033 | 0.129* | |
C5 | 0.3677 (5) | 0.36127 (12) | 1.0725 (3) | 0.0477 (9) | |
C6 | 0.1894 (5) | 0.36341 (12) | 0.8828 (3) | 0.0463 (9) | |
C7 | 0.2749 (5) | 0.39689 (13) | 0.8237 (3) | 0.0471 (9) | |
C8 | 0.0003 (5) | 0.35498 (12) | 0.8306 (3) | 0.0490 (9) | |
C9 | −0.1482 (5) | 0.32477 (14) | 0.8645 (3) | 0.0721 (12) | |
H9A | −0.0848 | 0.3064 | 0.9267 | 0.108* | |
H9B | −0.2084 | 0.3035 | 0.8069 | 0.108* | |
H9C | −0.2475 | 0.3449 | 0.8819 | 0.108* | |
C10 | −0.2392 (5) | 0.39900 (14) | 0.6880 (3) | 0.0702 (12) | |
H10A | −0.3355 | 0.3738 | 0.6781 | 0.105* | |
H10B | −0.2400 | 0.4132 | 0.6196 | 0.105* | |
H10C | −0.2707 | 0.4230 | 0.7350 | 0.105* | |
C11 | 0.9878 (5) | 0.27704 (14) | 1.2193 (4) | 0.0622 (11) | |
C12 | 1.1368 (6) | 0.28490 (15) | 1.3102 (4) | 0.0856 (15) | |
H12 | 1.1160 | 0.3046 | 1.3650 | 0.128* | |
C13 | 1.3200 (7) | 0.2628 (2) | 1.3189 (5) | 0.106 (2) | |
H13 | 1.4218 | 0.2681 | 1.3798 | 0.158* | |
C14 | 1.3505 (8) | 0.2337 (2) | 1.2387 (6) | 0.113 (2) | |
H14 | 1.4723 | 0.2190 | 1.2455 | 0.170* | |
C15 | 1.2029 (7) | 0.22617 (17) | 1.1490 (5) | 0.1022 (18) | |
H15 | 1.2248 | 0.2067 | 1.0942 | 0.153* | |
C16 | 1.0204 (6) | 0.24739 (15) | 1.1388 (4) | 0.0764 (13) | |
H16 | 0.9194 | 0.2417 | 1.0777 | 0.115* | |
C21 | 0.2617 (5) | 0.40465 (13) | 1.0930 (3) | 0.0464 (9) | |
C22 | 0.3457 (5) | 0.44941 (15) | 1.0920 (3) | 0.0635 (11) | |
H22 | 0.4677 | 0.4524 | 1.0755 | 0.095* | |
C23 | 0.2496 (7) | 0.48979 (15) | 1.1153 (3) | 0.0754 (13) | |
H23 | 0.3080 | 0.5198 | 1.1165 | 0.113* | |
C24 | 0.0683 (8) | 0.48528 (18) | 1.1364 (3) | 0.0815 (14) | |
H24 | 0.0019 | 0.5126 | 1.1499 | 0.122* | |
C25 | −0.0172 (6) | 0.44145 (19) | 1.1381 (4) | 0.0795 (13) | |
H25 | −0.1396 | 0.4389 | 1.1542 | 0.119* | |
C26 | 0.0791 (6) | 0.40100 (14) | 1.1158 (3) | 0.0643 (11) | |
H26 | 0.0207 | 0.3711 | 1.1161 | 0.096* | |
C31 | 0.1463 (5) | 0.42656 (14) | 0.6359 (3) | 0.0512 (10) | |
C32 | 0.2479 (5) | 0.46887 (14) | 0.6354 (3) | 0.0601 (11) | |
H32 | 0.2949 | 0.4857 | 0.6992 | 0.090* | |
C33 | 0.2795 (6) | 0.48598 (14) | 0.5408 (4) | 0.0696 (12) | |
H33 | 0.3517 | 0.5140 | 0.5415 | 0.104* | |
C34 | 0.2073 (6) | 0.46276 (16) | 0.4455 (3) | 0.0688 (12) | |
H34 | 0.2264 | 0.4753 | 0.3815 | 0.103* | |
C35 | 0.1053 (6) | 0.42031 (16) | 0.4455 (3) | 0.0681 (12) | |
H35 | 0.0568 | 0.4040 | 0.3812 | 0.102* | |
C36 | 0.0752 (5) | 0.40208 (13) | 0.5395 (3) | 0.0598 (11) | |
H36 | 0.0072 | 0.3734 | 0.5389 | 0.090* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
N1 | 0.052 (2) | 0.065 (2) | 0.058 (2) | 0.0004 (17) | −0.0017 (19) | 0.0036 (18) |
N2 | 0.070 (2) | 0.077 (3) | 0.052 (2) | −0.0075 (19) | −0.0036 (19) | −0.002 (2) |
N3 | 0.0487 (19) | 0.061 (2) | 0.048 (2) | 0.0098 (18) | 0.0034 (18) | −0.0002 (18) |
N4 | 0.0385 (16) | 0.062 (2) | 0.0457 (19) | −0.0060 (15) | 0.0069 (16) | −0.0005 (16) |
N5 | 0.0334 (16) | 0.069 (2) | 0.0474 (19) | −0.0030 (15) | 0.0084 (15) | 0.0049 (17) |
O1 | 0.0571 (16) | 0.0741 (19) | 0.0553 (17) | 0.0100 (14) | 0.0076 (15) | −0.0017 (15) |
O2 | 0.0430 (15) | 0.090 (2) | 0.0650 (18) | −0.0124 (13) | 0.0051 (14) | 0.0043 (15) |
C1 | 0.043 (2) | 0.066 (3) | 0.042 (2) | −0.004 (2) | 0.001 (2) | 0.010 (2) |
C2 | 0.040 (2) | 0.053 (2) | 0.042 (2) | −0.0025 (18) | −0.0031 (19) | 0.0036 (19) |
C3 | 0.055 (2) | 0.067 (3) | 0.049 (3) | −0.004 (2) | 0.002 (2) | 0.005 (2) |
C4 | 0.093 (3) | 0.102 (4) | 0.055 (3) | 0.006 (3) | 0.005 (3) | −0.021 (3) |
C5 | 0.043 (2) | 0.056 (2) | 0.043 (2) | −0.0105 (18) | 0.0082 (19) | 0.001 (2) |
C6 | 0.041 (2) | 0.056 (2) | 0.038 (2) | 0.0033 (18) | 0.0025 (19) | −0.0002 (19) |
C7 | 0.034 (2) | 0.059 (3) | 0.045 (2) | 0.0031 (19) | 0.0053 (19) | −0.0040 (19) |
C8 | 0.046 (2) | 0.058 (2) | 0.045 (2) | −0.0002 (18) | 0.014 (2) | −0.0008 (19) |
C9 | 0.056 (2) | 0.092 (3) | 0.069 (3) | −0.012 (2) | 0.016 (2) | 0.014 (2) |
C10 | 0.041 (2) | 0.093 (3) | 0.069 (3) | 0.007 (2) | 0.001 (2) | 0.009 (2) |
C11 | 0.046 (2) | 0.060 (3) | 0.072 (3) | 0.001 (2) | −0.002 (2) | 0.026 (2) |
C12 | 0.061 (3) | 0.086 (3) | 0.089 (3) | −0.005 (2) | −0.021 (3) | 0.029 (3) |
C13 | 0.062 (3) | 0.096 (4) | 0.133 (5) | −0.005 (3) | −0.027 (4) | 0.056 (4) |
C14 | 0.060 (3) | 0.098 (5) | 0.175 (7) | 0.010 (3) | 0.014 (4) | 0.060 (4) |
C15 | 0.061 (3) | 0.095 (4) | 0.150 (5) | 0.020 (3) | 0.026 (3) | 0.038 (4) |
C16 | 0.060 (3) | 0.077 (3) | 0.091 (3) | 0.016 (2) | 0.014 (3) | 0.020 (3) |
C21 | 0.048 (2) | 0.050 (2) | 0.040 (2) | 0.0025 (19) | 0.0071 (18) | 0.0000 (18) |
C22 | 0.059 (2) | 0.059 (3) | 0.069 (3) | −0.004 (2) | 0.011 (2) | 0.000 (2) |
C23 | 0.088 (3) | 0.059 (3) | 0.071 (3) | 0.003 (3) | 0.004 (3) | −0.006 (2) |
C24 | 0.094 (4) | 0.078 (3) | 0.067 (3) | 0.025 (3) | 0.010 (3) | −0.007 (3) |
C25 | 0.062 (3) | 0.097 (4) | 0.082 (3) | 0.016 (3) | 0.023 (3) | −0.005 (3) |
C26 | 0.059 (2) | 0.069 (3) | 0.067 (3) | −0.001 (2) | 0.019 (2) | 0.006 (2) |
C31 | 0.048 (2) | 0.061 (3) | 0.046 (2) | 0.004 (2) | 0.014 (2) | 0.004 (2) |
C32 | 0.063 (2) | 0.061 (3) | 0.059 (3) | −0.005 (2) | 0.020 (2) | 0.000 (2) |
C33 | 0.078 (3) | 0.071 (3) | 0.065 (3) | −0.016 (2) | 0.026 (3) | 0.002 (3) |
C34 | 0.080 (3) | 0.078 (3) | 0.055 (3) | −0.003 (2) | 0.027 (2) | 0.007 (2) |
C35 | 0.079 (3) | 0.084 (3) | 0.045 (2) | 0.000 (2) | 0.022 (2) | −0.008 (2) |
C36 | 0.059 (2) | 0.066 (3) | 0.053 (3) | 0.000 (2) | 0.011 (2) | −0.002 (2) |
Geometric parameters (Å, º) top
N1—C1 | 1.380 (4) | C11—C16 | 1.383 (5) |
N1—N2 | 1.401 (4) | C12—C13 | 1.400 (6) |
N1—C11 | 1.417 (4) | C12—H12 | 0.930 |
N2—C3 | 1.316 (4) | C13—C14 | 1.367 (7) |
N3—C5 | 1.346 (4) | C13—H13 | 0.930 |
N3—C6 | 1.421 (4) | C14—C15 | 1.359 (7) |
N3—H3 | 0.84 (4) | C14—H14 | 0.930 |
N4—N5 | 1.402 (3) | C15—C16 | 1.383 (5) |
N4—C7 | 1.409 (4) | C15—H15 | 0.930 |
N4—C31 | 1.416 (4) | C16—H16 | 0.930 |
N5—C8 | 1.356 (4) | C21—C26 | 1.380 (5) |
N5—C10 | 1.466 (4) | C21—C22 | 1.382 (4) |
O1—C1 | 1.249 (4) | C22—C23 | 1.381 (5) |
O2—C7 | 1.221 (4) | C22—H22 | 0.930 |
C1—C2 | 1.430 (5) | C23—C24 | 1.364 (6) |
C2—C5 | 1.375 (4) | C23—H23 | 0.930 |
C2—C3 | 1.432 (5) | C24—C25 | 1.364 (5) |
C3—C4 | 1.492 (5) | C24—H24 | 0.930 |
C4—H4A | 0.960 | C25—C26 | 1.380 (5) |
C4—H4B | 0.960 | C25—H25 | 0.930 |
C4—H4C | 0.960 | C26—H26 | 0.930 |
C5—C21 | 1.476 (4) | C31—C32 | 1.378 (5) |
C6—C8 | 1.348 (4) | C31—C36 | 1.392 (5) |
C6—C7 | 1.423 (5) | C32—C33 | 1.369 (5) |
C8—C9 | 1.482 (4) | C32—H32 | 0.930 |
C9—H9A | 0.960 | C33—C34 | 1.365 (5) |
C9—H9B | 0.960 | C33—H33 | 0.930 |
C9—H9C | 0.960 | C34—C35 | 1.382 (5) |
C10—H10A | 0.960 | C34—H34 | 0.930 |
C10—H10B | 0.960 | C35—C36 | 1.369 (5) |
C10—H10C | 0.960 | C35—H35 | 0.930 |
C11—C12 | 1.376 (5) | C36—H36 | 0.930 |
| | | |
C1—N1—N2 | 111.4 (3) | C12—C11—N1 | 118.8 (4) |
C1—N1—C11 | 129.1 (4) | C16—C11—N1 | 121.3 (4) |
N2—N1—C11 | 118.7 (3) | C11—C12—C13 | 119.0 (5) |
C3—N2—N1 | 106.5 (3) | C11—C12—H12 | 120.5 |
C5—N3—C6 | 124.2 (3) | C13—C12—H12 | 120.5 |
C5—N3—H3 | 111 (3) | C14—C13—C12 | 120.6 (5) |
C6—N3—H3 | 120 (3) | C14—C13—H13 | 119.7 |
N5—N4—C7 | 108.8 (3) | C12—C13—H13 | 119.7 |
N5—N4—C31 | 120.1 (3) | C15—C14—C13 | 120.1 (5) |
C7—N4—C31 | 124.0 (3) | C15—C14—H14 | 120.0 |
C8—N5—N4 | 107.3 (3) | C13—C14—H14 | 120.0 |
C8—N5—C10 | 122.9 (3) | C14—C15—C16 | 120.4 (5) |
N4—N5—C10 | 116.8 (3) | C14—C15—H15 | 119.8 |
O1—C1—N1 | 125.2 (4) | C16—C15—H15 | 119.8 |
O1—C1—C2 | 129.6 (3) | C15—C16—C11 | 120.1 (5) |
N1—C1—C2 | 105.2 (3) | C15—C16—H16 | 119.9 |
C5—C2—C1 | 123.1 (3) | C11—C16—H16 | 119.9 |
C5—C2—C3 | 131.1 (4) | C26—C21—C22 | 119.1 (3) |
C1—C2—C3 | 105.6 (3) | C26—C21—C5 | 120.5 (3) |
N2—C3—C2 | 111.2 (4) | C22—C21—C5 | 120.4 (3) |
N2—C3—C4 | 119.1 (3) | C23—C22—C21 | 120.4 (4) |
C2—C3—C4 | 129.7 (4) | C23—C22—H22 | 119.8 |
C3—C4—H4A | 109.5 | C21—C22—H22 | 119.8 |
C3—C4—H4B | 109.5 | C24—C23—C22 | 119.5 (4) |
H4A—C4—H4B | 109.5 | C24—C23—H23 | 120.3 |
C3—C4—H4C | 109.5 | C22—C23—H23 | 120.3 |
H4A—C4—H4C | 109.5 | C25—C24—C23 | 121.2 (4) |
H4B—C4—H4C | 109.5 | C25—C24—H24 | 119.4 |
N3—C5—C2 | 119.3 (3) | C23—C24—H24 | 119.4 |
N3—C5—C21 | 117.1 (3) | C24—C25—C26 | 119.5 (4) |
C2—C5—C21 | 123.6 (3) | C24—C25—H25 | 120.2 |
C8—C6—N3 | 128.1 (3) | C26—C25—H25 | 120.2 |
C8—C6—C7 | 109.8 (3) | C25—C26—C21 | 120.4 (4) |
N3—C6—C7 | 121.7 (3) | C25—C26—H26 | 119.8 |
O2—C7—N4 | 124.2 (3) | C21—C26—H26 | 119.8 |
O2—C7—C6 | 131.8 (3) | C32—C31—C36 | 119.3 (4) |
N4—C7—C6 | 103.9 (3) | C32—C31—N4 | 119.2 (3) |
C6—C8—N5 | 109.5 (3) | C36—C31—N4 | 121.5 (3) |
C6—C8—C9 | 128.7 (3) | C33—C32—C31 | 119.8 (4) |
N5—C8—C9 | 121.8 (3) | C33—C32—H32 | 120.1 |
C8—C9—H9A | 109.5 | C31—C32—H32 | 120.1 |
C8—C9—H9B | 109.5 | C34—C33—C32 | 121.4 (4) |
H9A—C9—H9B | 109.5 | C34—C33—H33 | 119.3 |
C8—C9—H9C | 109.5 | C32—C33—H33 | 119.3 |
H9A—C9—H9C | 109.5 | C33—C34—C35 | 119.0 (4) |
H9B—C9—H9C | 109.5 | C33—C34—H34 | 120.5 |
N5—C10—H10A | 109.5 | C35—C34—H34 | 120.5 |
N5—C10—H10B | 109.5 | C36—C35—C34 | 120.6 (4) |
H10A—C10—H10B | 109.5 | C36—C35—H35 | 119.7 |
N5—C10—H10C | 109.5 | C34—C35—H35 | 119.7 |
H10A—C10—H10C | 109.5 | C35—C36—C31 | 119.9 (4) |
H10B—C10—H10C | 109.5 | C35—C36—H36 | 120.0 |
C12—C11—C16 | 119.8 (4) | C31—C36—H36 | 120.0 |
| | | |
C1—N1—N2—C3 | −1.2 (4) | N4—N5—C8—C6 | −7.2 (4) |
C11—N1—N2—C3 | 169.5 (3) | C10—N5—C8—C6 | −147.0 (3) |
C7—N4—N5—C8 | 8.5 (4) | N4—N5—C8—C9 | 172.6 (3) |
C31—N4—N5—C8 | 160.0 (3) | C10—N5—C8—C9 | 32.8 (5) |
C7—N4—N5—C10 | 151.2 (3) | C1—N1—C11—C12 | 168.2 (4) |
C31—N4—N5—C10 | −57.4 (4) | N2—N1—C11—C12 | −0.6 (5) |
N2—N1—C1—O1 | −178.1 (3) | C1—N1—C11—C16 | −9.6 (6) |
C11—N1—C1—O1 | 12.5 (6) | N2—N1—C11—C16 | −178.3 (3) |
N2—N1—C1—C2 | 2.9 (4) | C16—C11—C12—C13 | 0.5 (6) |
C11—N1—C1—C2 | −166.5 (3) | N1—C11—C12—C13 | −177.3 (4) |
O1—C1—C2—C5 | −7.5 (6) | C11—C12—C13—C14 | −0.4 (8) |
N1—C1—C2—C5 | 171.5 (3) | C12—C13—C14—C15 | 0.6 (9) |
O1—C1—C2—C3 | 177.6 (4) | C13—C14—C15—C16 | −0.9 (8) |
N1—C1—C2—C3 | −3.4 (4) | C14—C15—C16—C11 | 1.0 (7) |
N1—N2—C3—C2 | −1.2 (4) | C12—C11—C16—C15 | −0.8 (6) |
N1—N2—C3—C4 | 176.5 (3) | N1—C11—C16—C15 | 176.9 (4) |
C5—C2—C3—N2 | −171.4 (3) | N3—C5—C21—C26 | 75.9 (4) |
C1—C2—C3—N2 | 2.9 (4) | C2—C5—C21—C26 | −104.5 (4) |
C5—C2—C3—C4 | 11.3 (7) | N3—C5—C21—C22 | −105.5 (4) |
C1—C2—C3—C4 | −174.4 (4) | C2—C5—C21—C22 | 74.1 (5) |
C6—N3—C5—C2 | −158.4 (3) | C26—C21—C22—C23 | 1.1 (6) |
C6—N3—C5—C21 | 21.2 (5) | C5—C21—C22—C23 | −177.5 (3) |
C1—C2—C5—N3 | 10.6 (5) | C21—C22—C23—C24 | −1.8 (6) |
C3—C2—C5—N3 | −175.9 (4) | C22—C23—C24—C25 | 2.0 (7) |
C1—C2—C5—C21 | −169.0 (3) | C23—C24—C25—C26 | −1.4 (7) |
C3—C2—C5—C21 | 4.4 (6) | C24—C25—C26—C21 | 0.7 (6) |
C5—N3—C6—C8 | −112.8 (4) | C22—C21—C26—C25 | −0.6 (6) |
C5—N3—C6—C7 | 74.8 (5) | C5—C21—C26—C25 | 178.0 (4) |
N5—N4—C7—O2 | 172.2 (3) | N5—N4—C31—C32 | 153.4 (3) |
C31—N4—C7—O2 | 22.0 (5) | C7—N4—C31—C32 | −59.6 (5) |
N5—N4—C7—C6 | −6.3 (3) | N5—N4—C31—C36 | −27.5 (5) |
C31—N4—C7—C6 | −156.5 (3) | C7—N4—C31—C36 | 119.5 (4) |
C8—C6—C7—O2 | −176.3 (4) | C36—C31—C32—C33 | −0.7 (6) |
N3—C6—C7—O2 | −2.7 (6) | N4—C31—C32—C33 | 178.4 (3) |
C8—C6—C7—N4 | 2.0 (4) | C31—C32—C33—C34 | 2.0 (6) |
N3—C6—C7—N4 | 175.7 (3) | C32—C33—C34—C35 | −2.0 (6) |
N3—C6—C8—N5 | −169.9 (3) | C33—C34—C35—C36 | 0.7 (6) |
C7—C6—C8—N5 | 3.2 (4) | C34—C35—C36—C31 | 0.5 (6) |
N3—C6—C8—C9 | 10.3 (6) | C32—C31—C36—C35 | −0.5 (6) |
C7—C6—C8—C9 | −176.6 (3) | N4—C31—C36—C35 | −179.6 (3) |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10C···O2i | 0.96 | 2.67 | 3.302 (5) | 123 |
C23—H23···O2ii | 0.93 | 2.53 | 3.428 (5) | 161 |
N3—H3···O1 | 0.84 (4) | 2.01 (4) | 2.745 (4) | 146 (4) |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+1, −z+2. |
Experimental details
Crystal data |
Chemical formula | C28H25N5O2 |
Mr | 463.53 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 6.986 (3), 27.904 (11), 12.804 (5) |
β (°) | 104.127 (8) |
V (Å3) | 2420.4 (16) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.25 × 0.22 × 0.20 |
|
Data collection |
Diffractometer | Bruker SMART 1000 CCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10034, 4285, 1677 |
Rint | 0.097 |
(sin θ/λ)max (Å−1) | 0.595 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.151, 0.85 |
No. of reflections | 4285 |
No. of parameters | 324 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.16, −0.16 |
Selected bond lengths (Å) topN1—C1 | 1.380 (4) | O1—C1 | 1.249 (4) |
N1—N2 | 1.401 (4) | O2—C7 | 1.221 (4) |
N2—C3 | 1.316 (4) | C1—C2 | 1.430 (5) |
N3—C5 | 1.346 (4) | C2—C5 | 1.375 (4) |
N3—C6 | 1.421 (4) | C2—C3 | 1.432 (5) |
N4—N5 | 1.402 (3) | C6—C8 | 1.348 (4) |
N4—C7 | 1.409 (4) | C6—C7 | 1.423 (5) |
N5—C8 | 1.356 (4) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10C···O2i | 0.96 | 2.67 | 3.302 (5) | 123 |
C23—H23···O2ii | 0.93 | 2.53 | 3.428 (5) | 161 |
N3—H3···O1 | 0.84 (4) | 2.01 (4) | 2.745 (4) | 146 (4) |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+1, −z+2. |
4-Acyl-5-pyrazolones, a family of flexible β-diketonates, are widely used and well known for their applications as analgesics, antipyretics, anti-inflammatory agents and insecticides (Hodnett & Paul, 1972). Therefore, the study of derivatives of 4-acyl-5-pyrazolones is the focus of many research groups working in the fields of coordination chemistry, biomedicine and pharmaceutical chemistry.
The title compound, (I), prepared by condensation of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and antipyrine (ATP), is a neutral tridentate ligand in which two O atoms of pyrazolone moieties and the N atom of antipyrine are possible coordinating atoms.
A view of the molecule of (I) is shown in Fig. 1. Atoms O1, C1, C2 and C5 of the PMBP moiety and atom N3 of ATP form a plane, the largest deviation being 0.048 (3) Å for atom C5. The dihedral angle between this mean plane and the pyrazoline ring of PMBP is 3.56 (3)°, close to the value of 5.05 (3)° in 4-[(2-hydroxyphenylamino)phenylmethylene]-5-methyl-2-phenyl-2H-pyrazol-3(4H)- one (Wang, Zhang & Miao, 2002). The bond lengths within this part of the molecule (Table 1) lie between the classical single- and double-bond lengths, indicating extensive conjugation.
Atoms O2, C6, C7 and N3 of ATP also are coplanar, the largest deviation from the mean plane being 0.010 (2) Å for C7. The dihedral angle between this plane and the adjacent pyrazoline ring of ATP is 6.64 (3)°. The bond lengths in this part of the molecule (Table 1) also indicate delocalization for the ATP group. The dihedral angle between the two pyrazoline rings is 86.2 (3)°, reducing their steric hindrance.
A strong intramolecular N3—H3···O1 hydrogen bond (Table 2) is observed, leading to an enamine–keto tautomerism. This case is similar to that in 1,5-dimethyl-4-{[E-3-oxo-3-(2-thienyl)-1-(trifluoromethyl)-1-propenyl]amino}- 2-phenyl-1,2-dihydro-3H-pyrazol-3-one [N···O = 2.702 (4) Å and the angle at H = 139°; Yu et al., 2002]. Intermolecular C—H···O hydrogen bonds are also found.
The displacements of atoms C10 and C31 from the pyrazoline ring of ATP are 0.625 (6) and −0.419 (6) Å, respectively, showing that the methyl group bonded to N5 and the phenyl group bonded to N4 are on opposite sides of the ring. The same result was observed in 3-(2,3-dihydro-1,5-dimethyl-3-oxo-2- phenylpyrazol-4-ylimino)-4,4,4-trifluoro-1-(2-thienyl)butane-1,2-dione (Wang, Yu et al., 2002). The torsion angle C10—N5—N4—C31 is 57.4 (4)°, close to the value of 55.6 (3)° in 4-(salicylideneamino)-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one (Chumakov et al., 2000) and different from the value of 7.75 (2)° in 4-(antipyrin-4-yliminomethyl)benzoic acid (Zhang et al., 2002). Small torsion angles for O1—C1—C2—C5 [−7.5 (6)°] and O2—C7—C6—N3 [2.7 (6)°] show that atoms O1, N3 and O2 could act as the coordinating atoms in this tridentate ligand.