organic compounds
(E)-1-Diphenylmethylidene-2-[(1H-indol-3-yl)methylidene]hydrazine
aPG Research Department of Physics, Rajah Serfoji Government College (Autonomous), Thanjavur 613 005, Tamil Nadu, India, bDepartment of Chemistry, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India, and cDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
*Correspondence e-mail: athiru@vsnl.net
In the title compound, C22H17N3, the 1H-indole unit is essentially planar, with a dihedral angle of 0.95 (10)° between the pyrrole ring and the fused benzene ring. The dihedral angle between the two phenyl rings is 65.09 (10)°. In the crystal, an intermolecular N—H⋯N hydrogen bond forms an infinite chain in the b-axis direction.
Related literature
For the synthesis, see: Fleming & Harley-Mason (1961). For the crystal structures of some aromatic for example, acetophenone azine, see: Glaser et al. (1995). For other heterocyclic aldehyde see: Lin et al. (2001). For the of symmetrical 1H-Indole-3-carbaldehyde azine, see: Rizal et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
10.1107/S1600536810020702/nk2037sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810020702/nk2037Isup2.hkl
The compound was prepared in accord with literature precedents Fleming & Harley-Mason (1961). The mixture of benzophenone hydrazone (1.96 g, 0.01 mol) and indole-3-carboxaldehyde (2.55 g, 0.01 mol) in ethanol was refluxed for 2 h. The mixture was cooled to room temperature over night. The solid obtained was separated, dried and then recrystallized from absolute ethanol. The yield of isolated product was (1.76 g, 79%).
Owing to the absence of any anamalous scatterers in the molecule, Friedel pairs were merged. The
in the model was chosen arbitrarily. The N-bound H1 atom was located in a difference Fourier map, and was freely refined. Remaining H atoms were positioned geometrically and allowed to ride on their parent atoms, with C—H = 0.93 Å. Uiso(H) = 1.2Ueq(C).Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell
CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2009).C22H17N3 | Dx = 1.230 Mg m−3 |
Mr = 323.39 | Melting point: 423 K |
Orthorhombic, Pna21 | Cu Kα radiation, λ = 1.54184 Å |
Hall symbol: P 2c -2n | Cell parameters from 6053 reflections |
a = 24.1594 (3) Å | θ = 4.9–77.4° |
b = 13.8501 (2) Å | µ = 0.58 mm−1 |
c = 5.2173 (1) Å | T = 295 K |
V = 1745.76 (5) Å3 | Needle, pale yellow |
Z = 4 | 0.46 × 0.21 × 0.18 mm |
F(000) = 680 |
Oxford Diffraction Xcalibur Ruby Gemini diffractometer | 2059 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 1954 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.015 |
Detector resolution: 10.5081 pixels mm-1 | θmax = 77.6°, θmin = 4.9° |
ω scans | h = −30→27 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | k = −17→17 |
Tmin = 0.796, Tmax = 1.000 | l = −5→6 |
8042 measured reflections |
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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.092 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0712P)2 + 0.0189P] where P = (Fo2 + 2Fc2)/3 |
2059 reflections | (Δ/σ)max = 0.001 |
230 parameters | Δρmax = 0.12 e Å−3 |
1 restraint | Δρmin = −0.17 e Å−3 |
C22H17N3 | V = 1745.76 (5) Å3 |
Mr = 323.39 | Z = 4 |
Orthorhombic, Pna21 | Cu Kα radiation |
a = 24.1594 (3) Å | µ = 0.58 mm−1 |
b = 13.8501 (2) Å | T = 295 K |
c = 5.2173 (1) Å | 0.46 × 0.21 × 0.18 mm |
Oxford Diffraction Xcalibur Ruby Gemini diffractometer | 2059 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 1954 reflections with I > 2σ(I) |
Tmin = 0.796, Tmax = 1.000 | Rint = 0.015 |
8042 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 1 restraint |
wR(F2) = 0.092 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.12 e Å−3 |
2059 reflections | Δρmin = −0.17 e Å−3 |
230 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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 | ||
N1 | 0.25795 (6) | 0.62655 (10) | 0.3007 (4) | 0.0689 (4) | |
N2 | 0.15647 (5) | 0.26575 (8) | 0.6043 (3) | 0.0551 (3) | |
N3 | 0.16478 (5) | 0.36551 (8) | 0.6361 (3) | 0.0550 (4) | |
C1 | 0.20416 (6) | 0.39405 (10) | 0.4934 (4) | 0.0582 (4) | |
C2 | 0.25644 (7) | 0.52898 (11) | 0.2923 (4) | 0.0692 (5) | |
C3 | 0.21904 (6) | 0.49427 (10) | 0.4681 (4) | 0.0578 (4) | |
C4 | 0.15783 (6) | 0.59044 (12) | 0.7935 (4) | 0.0636 (5) | |
C5 | 0.14574 (8) | 0.68387 (14) | 0.8692 (5) | 0.0778 (6) | |
C6 | 0.17085 (8) | 0.76319 (13) | 0.7519 (5) | 0.0794 (7) | |
C7 | 0.20847 (8) | 0.75255 (11) | 0.5582 (5) | 0.0711 (6) | |
C8 | 0.22152 (6) | 0.65856 (11) | 0.4834 (4) | 0.0587 (4) | |
C9 | 0.19622 (5) | 0.57731 (10) | 0.5974 (3) | 0.0540 (4) | |
C10 | 0.11010 (6) | 0.23275 (9) | 0.6904 (3) | 0.0510 (3) | |
C11 | 0.09878 (6) | 0.12935 (10) | 0.6271 (3) | 0.0576 (4) | |
C12 | 0.12405 (8) | 0.08728 (13) | 0.4155 (4) | 0.0715 (6) | |
C13 | 0.11502 (10) | −0.00994 (14) | 0.3603 (5) | 0.0890 (8) | |
C14 | 0.08040 (10) | −0.06415 (13) | 0.5133 (6) | 0.0945 (9) | |
C15 | 0.05508 (10) | −0.02335 (13) | 0.7208 (6) | 0.0891 (8) | |
C16 | 0.06379 (8) | 0.07414 (11) | 0.7795 (5) | 0.0710 (5) | |
C21 | 0.06955 (6) | 0.28877 (10) | 0.8444 (3) | 0.0513 (4) | |
C22 | 0.01336 (6) | 0.28961 (11) | 0.7848 (4) | 0.0609 (4) | |
C23 | −0.02317 (7) | 0.34404 (14) | 0.9306 (5) | 0.0728 (6) | |
C24 | −0.00457 (8) | 0.39643 (14) | 1.1386 (4) | 0.0735 (6) | |
C25 | 0.05106 (8) | 0.39457 (13) | 1.2010 (4) | 0.0686 (5) | |
C26 | 0.08756 (6) | 0.34155 (11) | 1.0559 (3) | 0.0593 (4) | |
H1 | 0.2797 (10) | 0.6616 (17) | 0.204 (6) | 0.089 (7)* | |
H1A | 0.22419 | 0.34832 | 0.40160 | 0.0698* | |
H2 | 0.27765 | 0.49087 | 0.18322 | 0.0830* | |
H4 | 0.14080 | 0.53787 | 0.87152 | 0.0764* | |
H5 | 0.12039 | 0.69401 | 1.00059 | 0.0933* | |
H6 | 0.16173 | 0.82502 | 0.80720 | 0.0953* | |
H7 | 0.22468 | 0.80575 | 0.47948 | 0.0853* | |
H12 | 0.14699 | 0.12400 | 0.31071 | 0.0858* | |
H13 | 0.13237 | −0.03826 | 0.22001 | 0.1067* | |
H14 | 0.07425 | −0.12885 | 0.47504 | 0.1133* | |
H15 | 0.03194 | −0.06049 | 0.82360 | 0.1069* | |
H16 | 0.04622 | 0.10185 | 0.92001 | 0.0852* | |
H22 | 0.00029 | 0.25361 | 0.64707 | 0.0731* | |
H23 | −0.06054 | 0.34525 | 0.88781 | 0.0873* | |
H24 | −0.02924 | 0.43266 | 1.23595 | 0.0882* | |
H25 | 0.06382 | 0.42930 | 1.34165 | 0.0823* | |
H26 | 0.12488 | 0.34091 | 1.09955 | 0.0711* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0668 (7) | 0.0567 (7) | 0.0833 (9) | −0.0144 (6) | 0.0116 (8) | 0.0021 (8) |
N2 | 0.0562 (6) | 0.0416 (5) | 0.0675 (7) | 0.0010 (4) | −0.0022 (6) | 0.0012 (6) |
N3 | 0.0535 (5) | 0.0425 (5) | 0.0689 (8) | −0.0018 (4) | 0.0006 (5) | 0.0014 (6) |
C1 | 0.0501 (6) | 0.0493 (6) | 0.0751 (10) | 0.0016 (5) | 0.0050 (7) | −0.0012 (7) |
C2 | 0.0642 (8) | 0.0578 (8) | 0.0856 (11) | −0.0070 (6) | 0.0161 (9) | −0.0013 (9) |
C3 | 0.0483 (6) | 0.0514 (7) | 0.0737 (9) | −0.0034 (5) | 0.0032 (7) | 0.0006 (7) |
C4 | 0.0556 (7) | 0.0622 (8) | 0.0731 (10) | −0.0023 (6) | 0.0038 (8) | −0.0011 (8) |
C5 | 0.0673 (9) | 0.0766 (10) | 0.0894 (14) | 0.0047 (8) | 0.0079 (9) | −0.0178 (10) |
C6 | 0.0784 (10) | 0.0573 (8) | 0.1025 (16) | 0.0033 (7) | −0.0065 (11) | −0.0201 (10) |
C7 | 0.0747 (9) | 0.0509 (7) | 0.0877 (12) | −0.0090 (7) | −0.0107 (10) | −0.0036 (8) |
C8 | 0.0535 (6) | 0.0529 (7) | 0.0697 (9) | −0.0084 (5) | −0.0072 (7) | 0.0002 (7) |
C9 | 0.0445 (6) | 0.0507 (6) | 0.0668 (9) | −0.0037 (5) | −0.0064 (6) | −0.0003 (7) |
C10 | 0.0535 (6) | 0.0432 (5) | 0.0562 (7) | −0.0007 (5) | −0.0090 (6) | 0.0058 (6) |
C11 | 0.0620 (7) | 0.0449 (6) | 0.0660 (8) | −0.0027 (5) | −0.0177 (7) | 0.0019 (7) |
C12 | 0.0800 (10) | 0.0593 (8) | 0.0752 (11) | 0.0023 (7) | −0.0156 (9) | −0.0079 (8) |
C13 | 0.1040 (14) | 0.0647 (10) | 0.0982 (16) | 0.0089 (9) | −0.0288 (13) | −0.0240 (11) |
C14 | 0.1079 (15) | 0.0465 (8) | 0.129 (2) | −0.0049 (9) | −0.0440 (16) | −0.0108 (11) |
C15 | 0.1001 (14) | 0.0516 (9) | 0.1155 (19) | −0.0200 (9) | −0.0224 (13) | 0.0108 (11) |
C16 | 0.0786 (10) | 0.0512 (7) | 0.0833 (11) | −0.0120 (7) | −0.0120 (10) | 0.0077 (8) |
C21 | 0.0551 (7) | 0.0453 (6) | 0.0535 (7) | −0.0041 (5) | −0.0037 (6) | 0.0089 (5) |
C22 | 0.0557 (7) | 0.0612 (7) | 0.0658 (8) | −0.0039 (6) | −0.0070 (7) | 0.0032 (8) |
C23 | 0.0559 (7) | 0.0787 (10) | 0.0837 (12) | 0.0040 (7) | −0.0001 (9) | 0.0088 (10) |
C24 | 0.0738 (10) | 0.0731 (9) | 0.0737 (11) | 0.0080 (8) | 0.0134 (9) | 0.0029 (9) |
C25 | 0.0808 (10) | 0.0693 (9) | 0.0557 (8) | −0.0044 (8) | 0.0030 (8) | −0.0016 (8) |
C26 | 0.0596 (7) | 0.0627 (8) | 0.0556 (7) | −0.0049 (6) | −0.0055 (6) | 0.0036 (7) |
N1—C2 | 1.353 (2) | C21—C26 | 1.393 (2) |
N1—C8 | 1.371 (3) | C21—C22 | 1.393 (2) |
N2—N3 | 1.4060 (16) | C22—C23 | 1.388 (3) |
N2—C10 | 1.2906 (19) | C23—C24 | 1.381 (3) |
N3—C1 | 1.271 (2) | C24—C25 | 1.383 (3) |
N1—H1 | 0.88 (3) | C25—C26 | 1.375 (2) |
C1—C3 | 1.440 (2) | C1—H1A | 0.9300 |
C2—C3 | 1.374 (3) | C2—H2 | 0.9300 |
C3—C9 | 1.443 (2) | C4—H4 | 0.9300 |
C4—C5 | 1.384 (3) | C5—H5 | 0.9300 |
C4—C9 | 1.393 (2) | C6—H6 | 0.9300 |
C5—C6 | 1.396 (3) | C7—H7 | 0.9300 |
C6—C7 | 1.367 (3) | C12—H12 | 0.9300 |
C7—C8 | 1.395 (2) | C13—H13 | 0.9300 |
C8—C9 | 1.412 (2) | C14—H14 | 0.9300 |
C10—C21 | 1.486 (2) | C15—H15 | 0.9300 |
C10—C11 | 1.4949 (19) | C16—H16 | 0.9300 |
C11—C12 | 1.390 (3) | C22—H22 | 0.9300 |
C11—C16 | 1.390 (3) | C23—H23 | 0.9300 |
C12—C13 | 1.394 (3) | C24—H24 | 0.9300 |
C13—C14 | 1.379 (3) | C25—H25 | 0.9300 |
C14—C15 | 1.366 (4) | C26—H26 | 0.9300 |
C15—C16 | 1.400 (2) | ||
N1···N2i | 3.0069 (19) | C12···H2ii | 3.0600 |
N2···N1ii | 3.0069 (19) | C13···H2ii | 3.0900 |
N3···C4 | 3.226 (2) | C14···H6v | 2.9300 |
N3···C26 | 2.896 (2) | C16···H22 | 3.0000 |
N2···H26iii | 2.9300 | C21···H16 | 2.6800 |
N2···H1ii | 2.18 (2) | C22···H16 | 2.8100 |
N2···H26 | 2.8900 | H1···N2i | 2.18 (2) |
N2···H12 | 2.5000 | H1···C10i | 2.84 (2) |
N3···H4 | 2.7500 | H1···C11i | 3.00 (2) |
N3···H26 | 2.6300 | H1···C12i | 2.96 (3) |
C2···C12i | 3.585 (3) | H1A···C6viii | 2.9000 |
C4···N3 | 3.226 (2) | H1A···C7viii | 2.7600 |
C6···C14iv | 3.470 (3) | H1A···H7viii | 2.5900 |
C12···C2ii | 3.585 (3) | H2···C12i | 3.0600 |
C13···C16iii | 3.474 (4) | H2···C13i | 3.0900 |
C14···C6v | 3.470 (3) | H4···N3 | 2.7500 |
C16···C22 | 3.224 (2) | H5···H23ix | 2.5400 |
C16···C13vi | 3.474 (4) | H6···C14iv | 2.9300 |
C22···C25iii | 3.496 (3) | H7···H1Avii | 2.5900 |
C22···C16 | 3.224 (2) | H12···N2 | 2.5000 |
C25···C22vi | 3.496 (3) | H16···C21 | 2.6800 |
C26···N3 | 2.896 (2) | H16···C22 | 2.8100 |
C1···H26iii | 2.9000 | H22···C11 | 2.9400 |
C6···H1Avii | 2.9000 | H22···C16 | 3.0000 |
C7···H1Avii | 2.7600 | H23···H5x | 2.5400 |
C10···H1ii | 2.84 (2) | H26···N2 | 2.8900 |
C11···H22 | 2.9400 | H26···N2vi | 2.9300 |
C11···H1ii | 3.00 (2) | H26···N3 | 2.6300 |
C12···H1ii | 2.96 (3) | H26···C1vi | 2.9000 |
C2—N1—C8 | 109.17 (15) | C23—C24—C25 | 119.44 (18) |
N3—N2—C10 | 115.52 (12) | C24—C25—C26 | 120.24 (18) |
N2—N3—C1 | 110.08 (13) | C21—C26—C25 | 121.07 (15) |
C2—N1—H1 | 123.5 (16) | N3—C1—H1A | 119.00 |
C8—N1—H1 | 127.4 (17) | C3—C1—H1A | 119.00 |
N3—C1—C3 | 122.71 (15) | N1—C2—H2 | 125.00 |
N1—C2—C3 | 110.22 (16) | C3—C2—H2 | 125.00 |
C1—C3—C2 | 124.23 (16) | C5—C4—H4 | 121.00 |
C2—C3—C9 | 106.52 (13) | C9—C4—H4 | 121.00 |
C1—C3—C9 | 129.06 (15) | C4—C5—H5 | 119.00 |
C5—C4—C9 | 118.18 (16) | C6—C5—H5 | 119.00 |
C4—C5—C6 | 121.3 (2) | C5—C6—H6 | 119.00 |
C5—C6—C7 | 121.87 (18) | C7—C6—H6 | 119.00 |
C6—C7—C8 | 117.23 (17) | C6—C7—H7 | 121.00 |
C7—C8—C9 | 121.87 (17) | C8—C7—H7 | 121.00 |
N1—C8—C7 | 129.89 (17) | C11—C12—H12 | 120.00 |
N1—C8—C9 | 108.24 (13) | C13—C12—H12 | 120.00 |
C4—C9—C8 | 119.58 (14) | C12—C13—H13 | 120.00 |
C3—C9—C4 | 134.58 (14) | C14—C13—H13 | 120.00 |
C3—C9—C8 | 105.84 (13) | C13—C14—H14 | 120.00 |
N2—C10—C11 | 114.91 (13) | C15—C14—H14 | 120.00 |
N2—C10—C21 | 125.15 (12) | C14—C15—H15 | 120.00 |
C11—C10—C21 | 119.94 (12) | C16—C15—H15 | 120.00 |
C10—C11—C12 | 119.79 (14) | C11—C16—H16 | 120.00 |
C12—C11—C16 | 119.41 (15) | C15—C16—H16 | 120.00 |
C10—C11—C16 | 120.80 (15) | C21—C22—H22 | 120.00 |
C11—C12—C13 | 120.02 (18) | C23—C22—H22 | 120.00 |
C12—C13—C14 | 120.1 (2) | C22—C23—H23 | 120.00 |
C13—C14—C15 | 120.36 (19) | C24—C23—H23 | 120.00 |
C14—C15—C16 | 120.3 (2) | C23—C24—H24 | 120.00 |
C11—C16—C15 | 119.8 (2) | C25—C24—H24 | 120.00 |
C10—C21—C22 | 121.76 (14) | C24—C25—H25 | 120.00 |
C22—C21—C26 | 118.48 (14) | C26—C25—H25 | 120.00 |
C10—C21—C26 | 119.76 (13) | C21—C26—H26 | 119.00 |
C21—C22—C23 | 120.14 (17) | C25—C26—H26 | 119.00 |
C22—C23—C24 | 120.62 (17) | ||
C8—N1—C2—C3 | 0.1 (2) | C7—C8—C9—C4 | −1.2 (3) |
C2—N1—C8—C7 | −179.2 (2) | N2—C10—C11—C12 | −24.1 (2) |
C2—N1—C8—C9 | 0.6 (2) | N2—C10—C11—C16 | 155.04 (17) |
C10—N2—N3—C1 | −164.25 (15) | C21—C10—C11—C12 | 156.63 (16) |
N3—N2—C10—C11 | 172.86 (13) | C21—C10—C11—C16 | −24.3 (2) |
N3—N2—C10—C21 | −7.9 (2) | N2—C10—C21—C22 | 131.69 (18) |
N2—N3—C1—C3 | 174.46 (16) | N2—C10—C21—C26 | −48.9 (2) |
N3—C1—C3—C2 | −171.37 (18) | C11—C10—C21—C22 | −49.1 (2) |
N3—C1—C3—C9 | 3.0 (3) | C11—C10—C21—C26 | 130.34 (15) |
N1—C2—C3—C1 | 174.67 (17) | C10—C11—C12—C13 | 177.96 (18) |
N1—C2—C3—C9 | −0.8 (2) | C16—C11—C12—C13 | −1.2 (3) |
C1—C3—C9—C4 | 6.0 (3) | C10—C11—C16—C15 | −178.12 (19) |
C1—C3—C9—C8 | −174.06 (18) | C12—C11—C16—C15 | 1.0 (3) |
C2—C3—C9—C4 | −178.90 (18) | C11—C12—C13—C14 | 0.9 (3) |
C2—C3—C9—C8 | 1.10 (19) | C12—C13—C14—C15 | −0.5 (4) |
C9—C4—C5—C6 | 0.5 (3) | C13—C14—C15—C16 | 0.4 (4) |
C5—C4—C9—C3 | −179.81 (19) | C14—C15—C16—C11 | −0.6 (4) |
C5—C4—C9—C8 | 0.2 (2) | C10—C21—C22—C23 | −178.96 (16) |
C4—C5—C6—C7 | −0.2 (4) | C26—C21—C22—C23 | 1.6 (2) |
C5—C6—C7—C8 | −0.8 (3) | C10—C21—C26—C25 | 179.57 (15) |
C6—C7—C8—N1 | −178.7 (2) | C22—C21—C26—C25 | −1.0 (2) |
C6—C7—C8—C9 | 1.5 (3) | C21—C22—C23—C24 | −1.2 (3) |
N1—C8—C9—C3 | −1.04 (19) | C22—C23—C24—C25 | 0.2 (3) |
N1—C8—C9—C4 | 178.96 (15) | C23—C24—C25—C26 | 0.5 (3) |
C7—C8—C9—C3 | 178.80 (18) | C24—C25—C26—C21 | −0.1 (3) |
Symmetry codes: (i) −x+1/2, y+1/2, z−1/2; (ii) −x+1/2, y−1/2, z+1/2; (iii) x, y, z−1; (iv) x, y+1, z; (v) x, y−1, z; (vi) x, y, z+1; (vii) −x+1/2, y+1/2, z+1/2; (viii) −x+1/2, y−1/2, z−1/2; (ix) −x, −y+1, z+1/2; (x) −x, −y+1, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N2i | 0.88 (3) | 2.18 (2) | 3.0069 (19) | 159 (3) |
Symmetry code: (i) −x+1/2, y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C22H17N3 |
Mr | 323.39 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 295 |
a, b, c (Å) | 24.1594 (3), 13.8501 (2), 5.2173 (1) |
V (Å3) | 1745.76 (5) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.58 |
Crystal size (mm) | 0.46 × 0.21 × 0.18 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Ruby Gemini diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.796, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8042, 2059, 1954 |
Rint | 0.015 |
(sin θ/λ)max (Å−1) | 0.634 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.092, 1.06 |
No. of reflections | 2059 |
No. of parameters | 230 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.12, −0.17 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N2i | 0.88 (3) | 2.18 (2) | 3.0069 (19) | 159 (3) |
Symmetry code: (i) −x+1/2, y+1/2, z−1/2. |
Acknowledgements
RJB acknowledges the NSF MRI program (grant CHE-0619278) for funds to purchase an X-ray diffractometer.
References
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Fleming, I. & Harley-Mason, J. (1961). J. Chem. Soc. pp. 5560–5561. Google Scholar
Glaser, R., Chen, G. S., Anthamatten, M. & Barnes, C. L. (1995). J. Chem. Soc. Perkin Trans. 2, pp. 1449–1458. CSD CrossRef Google Scholar
Lin, C.-J., Hwang, W.-S. & Chiang, M. J. (2001). J. Organomet. Chem. 640, 85–92. Web of Science CSD CrossRef CAS Google Scholar
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Rizal, M. R., Ali, H. M. & Ng, S. W. (2008). Acta Cryst. E64, o555. Web of Science CSD CrossRef 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.
The title compound is an unsymmetrical indole azine derived from benzophenone, indole-3-carboxaldehyde and hydrazine. Glaser et al., (1995) have reported the crystal structures of some aromatic azines. Lin et al., (2001) have reported heterocyclic aldehyde azines. Rizal et al., (2008) have reported the crystal structure of symmetrical 1H-Indole-3-carbaldehyde azine. Herein, we report the crystal structure of the title compound.
In the title molecule (Scheme I, Fig. 1), C22H17N3, the 1H-indole unit is almost planar, as the pyrrole ring makes a dihedral angle of 0.95 (10)° with the fused benzene ring. The r.m.s. deviation of a mean plane fitted through all non hydrogen atoms of the indole unit is 0.0096 Å; C3 deviates from this plane by 0.015 (1) Å. The dihedral angle between the two phenyl rings of the diphenylmethylene residue is 65.09 (10)°. The crystal structure is stabilized by intermolecular N1—H1···N2(1/2 - x, 1/2 + y, -1/2 + z) hydrogen bond forming an infinite one-dimensional chain in the b-axis direction (Fig. 2).