organic compounds
1,1′,5,5′-Tetramethyl-2,2′-diphenyl-4,4′-[p-phenylenebis(methylidynenitrilo)]di-1H-pyrazol-3(2H)-one
aKey Laboratory of Marine Chemistry, Theory and Technology, Ministry of Education, College of Chemistry, Ocean University of China, Qingdao Shandong 266100, People's Republic of China
*Correspondence e-mail: caifeng_bi@yahoo.com.cn
In the centrosymmetric title compound, C30H28N6O2, the dihedral angles between the antipyrine ring and the terminal phenyl and central benzene rings are 50.55 (10) and 14.62 (9)°, respectively. Some short intermolecular C—H⋯O interactions may help to establish the packing. An intramolecular C—H⋯O hydrogen bond is also present.
Related literature
For related structures, see: Guo et al. (2007); Selvakumar et al. (2007). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
10.1107/S1600536808021028/hb2742sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808021028/hb2742Isup2.hkl
The title compound was synthesized according to the literature method (Selvakumar et al., 2007). Orange plates of (I) were obtained by slow evaporation of a dichloromethane solution at 292 K.
All H atoms were positioned geometrically, with C—H = 0.93 and 0.96 Å for aromatic and methyl H, respectively, and constrained to ride on their parent atoms, with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C30H28N6O2 | F(000) = 532 |
Mr = 504.58 | Dx = 1.259 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1828 reflections |
a = 6.0710 (2) Å | θ = 2.3–22.5° |
b = 22.2948 (7) Å | µ = 0.08 mm−1 |
c = 9.8712 (3) Å | T = 292 K |
β = 95.147 (2)° | Plate, orange |
V = 1330.70 (7) Å3 | 0.18 × 0.10 × 0.09 mm |
Z = 2 |
Bruker APEX2 CCD diffractometer | 1545 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.027 |
Graphite monochromator | θmax = 27.5°, θmin = 1.8° |
ω scans | h = −7→7 |
9162 measured reflections | k = −28→17 |
3034 independent reflections | l = −12→9 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0656P)2 + 0.0153P] where P = (Fo2 + 2Fc2)/3 |
3034 reflections | (Δ/σ)max = 0.001 |
174 parameters | Δρmax = 0.12 e Å−3 |
0 restraints | Δρmin = −0.18 e Å−3 |
C30H28N6O2 | V = 1330.70 (7) Å3 |
Mr = 504.58 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 6.0710 (2) Å | µ = 0.08 mm−1 |
b = 22.2948 (7) Å | T = 292 K |
c = 9.8712 (3) Å | 0.18 × 0.10 × 0.09 mm |
β = 95.147 (2)° |
Bruker APEX2 CCD diffractometer | 1545 reflections with I > 2σ(I) |
9162 measured reflections | Rint = 0.027 |
3034 independent reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.12 e Å−3 |
3034 reflections | Δρmin = −0.18 e Å−3 |
174 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 | ||
C1 | 0.5949 (3) | 0.12139 (11) | 0.32324 (19) | 0.0767 (6) | |
H1 | 0.5483 | 0.1411 | 0.2427 | 0.092* | |
C2 | 0.6689 (3) | 0.06296 (12) | 0.3206 (2) | 0.0898 (7) | |
H2 | 0.6696 | 0.0428 | 0.2382 | 0.108* | |
C3 | 0.7414 (4) | 0.03451 (11) | 0.4398 (3) | 0.0976 (7) | |
H3 | 0.7902 | −0.0050 | 0.4379 | 0.117* | |
C4 | 0.7420 (4) | 0.06412 (12) | 0.5614 (2) | 0.0936 (7) | |
H4 | 0.7959 | 0.0450 | 0.6412 | 0.112* | |
C5 | 0.6643 (3) | 0.12151 (11) | 0.56657 (19) | 0.0777 (6) | |
H5 | 0.6608 | 0.1410 | 0.6497 | 0.093* | |
C6 | 0.5907 (3) | 0.15033 (9) | 0.44679 (17) | 0.0638 (5) | |
C7 | 0.6507 (3) | 0.25841 (8) | 0.49729 (18) | 0.0680 (5) | |
C8 | 0.5528 (3) | 0.31031 (9) | 0.42952 (16) | 0.0657 (5) | |
C9 | 0.3701 (3) | 0.29191 (11) | 0.34882 (16) | 0.0677 (5) | |
C10 | 0.2076 (3) | 0.32926 (10) | 0.26424 (18) | 0.0837 (6) | |
H10A | 0.1999 | 0.3158 | 0.1715 | 0.126* | |
H10B | 0.2536 | 0.3705 | 0.2689 | 0.126* | |
H10C | 0.0646 | 0.3256 | 0.2978 | 0.126* | |
C11 | 0.1418 (3) | 0.19847 (10) | 0.3420 (2) | 0.0868 (6) | |
H11A | 0.0685 | 0.2043 | 0.4232 | 0.130* | |
H11B | 0.1695 | 0.1565 | 0.3300 | 0.130* | |
H11C | 0.0497 | 0.2133 | 0.2650 | 0.130* | |
C12 | 0.8174 (3) | 0.38194 (9) | 0.49480 (17) | 0.0709 (5) | |
H12 | 0.8987 | 0.3517 | 0.5407 | 0.085* | |
C13 | 0.9078 (3) | 0.44231 (9) | 0.49655 (17) | 0.0647 (5) | |
C14 | 0.7891 (3) | 0.49092 (10) | 0.44065 (18) | 0.0758 (6) | |
H14 | 0.6464 | 0.4852 | 0.4000 | 0.091* | |
C15 | 0.8790 (3) | 0.54686 (9) | 0.44463 (19) | 0.0782 (6) | |
H15 | 0.7957 | 0.5787 | 0.4070 | 0.094* | |
N1 | 0.5147 (2) | 0.21053 (8) | 0.45312 (14) | 0.0699 (5) | |
N2 | 0.3520 (2) | 0.23112 (8) | 0.35370 (14) | 0.0709 (5) | |
N3 | 0.6298 (2) | 0.36905 (8) | 0.43221 (14) | 0.0692 (4) | |
O1 | 0.8196 (2) | 0.25210 (6) | 0.57570 (14) | 0.0871 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0660 (11) | 0.1017 (18) | 0.0610 (13) | −0.0126 (11) | −0.0015 (9) | −0.0058 (11) |
C2 | 0.0811 (14) | 0.1034 (19) | 0.0843 (16) | −0.0086 (13) | 0.0044 (12) | −0.0195 (14) |
C3 | 0.0867 (15) | 0.0909 (17) | 0.113 (2) | −0.0014 (12) | −0.0011 (14) | −0.0023 (16) |
C4 | 0.0888 (15) | 0.107 (2) | 0.0824 (17) | 0.0020 (13) | −0.0072 (12) | 0.0115 (14) |
C5 | 0.0653 (11) | 0.1053 (18) | 0.0605 (13) | −0.0029 (11) | −0.0064 (9) | −0.0020 (11) |
C6 | 0.0466 (9) | 0.0866 (15) | 0.0563 (11) | −0.0086 (9) | −0.0051 (8) | −0.0048 (10) |
C7 | 0.0526 (9) | 0.0930 (15) | 0.0554 (11) | −0.0021 (9) | −0.0110 (8) | −0.0130 (10) |
C8 | 0.0527 (9) | 0.0910 (15) | 0.0509 (10) | 0.0064 (10) | −0.0094 (8) | −0.0077 (9) |
C9 | 0.0487 (9) | 0.1015 (17) | 0.0505 (10) | 0.0041 (10) | −0.0086 (8) | −0.0064 (10) |
C10 | 0.0628 (11) | 0.1145 (17) | 0.0696 (13) | 0.0125 (10) | −0.0170 (9) | −0.0040 (11) |
C11 | 0.0511 (10) | 0.1288 (18) | 0.0764 (13) | −0.0119 (10) | −0.0170 (9) | −0.0014 (12) |
C12 | 0.0620 (11) | 0.0919 (15) | 0.0562 (11) | 0.0073 (10) | −0.0099 (9) | −0.0055 (10) |
C13 | 0.0590 (10) | 0.0832 (14) | 0.0497 (10) | 0.0020 (9) | −0.0070 (8) | −0.0066 (9) |
C14 | 0.0555 (10) | 0.0959 (17) | 0.0716 (12) | 0.0021 (10) | −0.0187 (9) | −0.0014 (11) |
C15 | 0.0643 (11) | 0.0872 (16) | 0.0781 (13) | 0.0062 (11) | −0.0210 (10) | 0.0021 (11) |
N1 | 0.0542 (8) | 0.0945 (13) | 0.0571 (9) | 0.0002 (8) | −0.0174 (7) | −0.0081 (8) |
N2 | 0.0477 (8) | 0.1039 (14) | 0.0570 (9) | 0.0000 (8) | −0.0175 (7) | −0.0055 (8) |
N3 | 0.0579 (9) | 0.0914 (13) | 0.0557 (9) | 0.0025 (8) | −0.0085 (7) | −0.0079 (8) |
O1 | 0.0706 (8) | 0.0991 (11) | 0.0832 (9) | 0.0021 (7) | −0.0401 (7) | −0.0085 (7) |
C1—C2 | 1.379 (3) | C9—C10 | 1.488 (2) |
C1—C6 | 1.382 (2) | C10—H10A | 0.9600 |
C1—H1 | 0.9300 | C10—H10B | 0.9600 |
C2—C3 | 1.373 (3) | C10—H10C | 0.9600 |
C2—H2 | 0.9300 | C11—N2 | 1.464 (2) |
C3—C4 | 1.370 (3) | C11—H11A | 0.9600 |
C3—H3 | 0.9300 | C11—H11B | 0.9600 |
C4—C5 | 1.366 (3) | C11—H11C | 0.9600 |
C4—H4 | 0.9300 | C12—N3 | 1.279 (2) |
C5—C6 | 1.384 (2) | C12—C13 | 1.453 (3) |
C5—H5 | 0.9300 | C12—H12 | 0.9300 |
C6—N1 | 1.422 (2) | C13—C14 | 1.388 (2) |
C7—O1 | 1.2360 (19) | C13—C15i | 1.391 (2) |
C7—N1 | 1.395 (2) | C14—C15 | 1.361 (2) |
C7—C8 | 1.438 (2) | C14—H14 | 0.9300 |
C8—C9 | 1.369 (2) | C15—C13i | 1.391 (2) |
C8—N3 | 1.390 (2) | C15—H15 | 0.9300 |
C9—N2 | 1.361 (2) | N1—N2 | 1.4056 (17) |
C2—C1—C6 | 119.3 (2) | H10A—C10—H10B | 109.5 |
C2—C1—H1 | 120.4 | C9—C10—H10C | 109.5 |
C6—C1—H1 | 120.4 | H10A—C10—H10C | 109.5 |
C3—C2—C1 | 120.0 (2) | H10B—C10—H10C | 109.5 |
C3—C2—H2 | 120.0 | N2—C11—H11A | 109.5 |
C1—C2—H2 | 120.0 | N2—C11—H11B | 109.5 |
C4—C3—C2 | 120.2 (2) | H11A—C11—H11B | 109.5 |
C4—C3—H3 | 119.9 | N2—C11—H11C | 109.5 |
C2—C3—H3 | 119.9 | H11A—C11—H11C | 109.5 |
C5—C4—C3 | 120.7 (2) | H11B—C11—H11C | 109.5 |
C5—C4—H4 | 119.7 | N3—C12—C13 | 122.21 (17) |
C3—C4—H4 | 119.7 | N3—C12—H12 | 118.9 |
C4—C5—C6 | 119.3 (2) | C13—C12—H12 | 118.9 |
C4—C5—H5 | 120.4 | C14—C13—C15i | 117.43 (17) |
C6—C5—H5 | 120.4 | C14—C13—C12 | 122.44 (16) |
C1—C6—C5 | 120.5 (2) | C15i—C13—C12 | 120.13 (17) |
C1—C6—N1 | 120.73 (17) | C15—C14—C13 | 120.76 (16) |
C5—C6—N1 | 118.80 (17) | C15—C14—H14 | 119.6 |
O1—C7—N1 | 122.90 (17) | C13—C14—H14 | 119.6 |
O1—C7—C8 | 131.90 (17) | C14—C15—C13i | 121.81 (17) |
N1—C7—C8 | 105.18 (15) | C14—C15—H15 | 119.1 |
C9—C8—N3 | 123.15 (18) | C13i—C15—H15 | 119.1 |
C9—C8—C7 | 108.00 (18) | C7—N1—N2 | 109.12 (15) |
N3—C8—C7 | 128.68 (15) | C7—N1—C6 | 123.38 (14) |
N2—C9—C8 | 109.98 (16) | N2—N1—C6 | 119.21 (14) |
N2—C9—C10 | 121.68 (16) | C9—N2—N1 | 107.21 (13) |
C8—C9—C10 | 128.3 (2) | C9—N2—C11 | 124.40 (15) |
C9—C10—H10A | 109.5 | N1—N2—C11 | 116.47 (16) |
C9—C10—H10B | 109.5 | C12—N3—C8 | 120.28 (16) |
C6—C1—C2—C3 | −1.3 (3) | C13—C14—C15—C13i | 0.4 (3) |
C1—C2—C3—C4 | −0.5 (3) | O1—C7—N1—N2 | −173.36 (16) |
C2—C3—C4—C5 | 2.1 (3) | C8—C7—N1—N2 | 4.94 (18) |
C3—C4—C5—C6 | −2.0 (3) | O1—C7—N1—C6 | −25.5 (3) |
C2—C1—C6—C5 | 1.4 (3) | C8—C7—N1—C6 | 152.81 (15) |
C2—C1—C6—N1 | −179.78 (16) | C1—C6—N1—C7 | −114.23 (18) |
C4—C5—C6—C1 | 0.3 (3) | C5—C6—N1—C7 | 64.6 (2) |
C4—C5—C6—N1 | −178.63 (17) | C1—C6—N1—N2 | 30.6 (2) |
O1—C7—C8—C9 | 177.28 (19) | C5—C6—N1—N2 | −150.49 (15) |
N1—C7—C8—C9 | −0.80 (19) | C8—C9—N2—N1 | 6.81 (18) |
O1—C7—C8—N3 | 2.0 (3) | C10—C9—N2—N1 | −173.58 (15) |
N1—C7—C8—N3 | −176.11 (16) | C8—C9—N2—C11 | 147.84 (16) |
N3—C8—C9—N2 | 171.85 (15) | C10—C9—N2—C11 | −32.6 (2) |
C7—C8—C9—N2 | −3.78 (19) | C7—N1—N2—C9 | −7.32 (18) |
N3—C8—C9—C10 | −7.7 (3) | C6—N1—N2—C9 | −156.74 (15) |
C7—C8—C9—C10 | 176.65 (17) | C7—N1—N2—C11 | −151.89 (16) |
N3—C12—C13—C14 | 5.7 (3) | C6—N1—N2—C11 | 58.7 (2) |
N3—C12—C13—C15i | −174.14 (16) | C13—C12—N3—C8 | 177.92 (15) |
C15i—C13—C14—C15 | −0.4 (3) | C9—C8—N3—C12 | −170.27 (17) |
C12—C13—C14—C15 | 179.78 (18) | C7—C8—N3—C12 | 4.4 (3) |
Symmetry code: (i) −x+2, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11C···O1ii | 0.96 | 2.36 | 3.321 (2) | 179 |
C11—H11A···O1iii | 0.96 | 2.47 | 3.375 (3) | 157 |
C12—H12···O1 | 0.93 | 2.30 | 3.002 (2) | 132 |
Symmetry codes: (ii) x−1, −y+1/2, z−1/2; (iii) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C30H28N6O2 |
Mr | 504.58 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 292 |
a, b, c (Å) | 6.0710 (2), 22.2948 (7), 9.8712 (3) |
β (°) | 95.147 (2) |
V (Å3) | 1330.70 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.18 × 0.10 × 0.09 |
Data collection | |
Diffractometer | Bruker APEX2 CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9162, 3034, 1545 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.141, 1.03 |
No. of reflections | 3034 |
No. of parameters | 174 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.12, −0.18 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2003), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11C···O1i | 0.96 | 2.36 | 3.321 (2) | 179 |
C11—H11A···O1ii | 0.96 | 2.47 | 3.375 (3) | 157 |
C12—H12···O1 | 0.93 | 2.30 | 3.002 (2) | 132 |
Symmetry codes: (i) x−1, −y+1/2, z−1/2; (ii) x−1, y, z. |
Acknowledgements
We thank Jian Dong Fan for collecting the data and Wei Huang for giving us a lot of help.
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. CrossRef Web of Science Google Scholar
Bruker (2001). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Guo, F., Bi, C. F., Fan, Y. H. & Xiao, Y. (2007). Asian J. Chem. 3, 1846–1852. Google Scholar
Selvakumar, P. M., Suresh, E. & Subramanian, P. S. (2007). Polyhedron, 26, 749–756. Web of Science CSD CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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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.
Recently, some new Schiff bases of 4-aminoantipyrine have been reported (Guo et al., 2007; Selvakumar et al., 2007). We herein report the crystal structure of the related title compound, (I).
The complete molecule of (I) is generated by inversion and its bond lengths and angles are within normal ranges (Allen et al., 1987). The maximum deviation from the mean plane for the antipyrine ring (N1/N2/C7—C9) is 0.039 (2)Å for N2. The dihedral angles between the mean planes of the antipyrine ring and the terminal and central benzene rings are 50.55 (10)° and 14.62 (9)°, respectively.
In the crystal, weak intermolecular C—H···O hydrogen bonds (Table 1) lead to chains of molecules (Fig. 2).