organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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ISSN: 2056-9890

4-(3-Meth­oxy­phen­yl)-3-[2-(4-meth­oxy­phen­yl)eth­yl]-1H-1,2,4-triazol-5(4H)-one

aDepartment of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan, and bThe Manchester Materials Science Centre and Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, England
*Correspondence e-mail: qadeerqau@yahoo.com

(Received 11 January 2009; accepted 22 January 2009; online 28 January 2009)

The asymmetric unit of the title compound, C18H19N3O3, contains two crystallographically independent but similar mol­ecules. The triazole ring is oriented with respect to the benzene rings to form dihedral angles of 57.96 (6) and 7.01 (6)° in one mol­ecule, and 64.37 (5) and 10.73 (5)° in the other. The two independent mol­ecules are linked into a dimer by inter­molecular N—H⋯O hydrogen bonds.

Related literature

For the biological activities of triazole derivatives, see: Demirbas et al. (2002[Demirbas, N., Ugurluoglu, R. & Demirbas, A. (2002). Bioorg. Med. Chem. 10, 3717-3723.]); Holla et al. (1998[Holla, B. S., Gonsalves, R. & Shenoy, S. (1998). Farmaco, 53, 574-578.]); Omar et al. (1986[Omar, A., Mohsen, M. E. & Wafa, O. A. (1986). Heterocycl. Chem. 23, 1339-1341.]); Paulvannan et al. (2000[Paulvannan, K., Chen, T. & Hale, R. (2000). Tetrahedron, 56, 8071-8076.]); Turan-Zitouni et al. (1999[Turan-Zitouni, G., Kaplancikli, Z. A., Erol, K. & Kilic, F. S. (1999). Farmaco, 54, 218-223.]); Kritsanida et al. (2002[Kritsanida, M., Mouroutsou, A., Marakos, P., Pouli, N., Papakonstantinou-Garoufalias, S., Pannecouque, C., Witvrouw, M. & Clercq, E. D. (2002). Farmaco, 57, 253-257.]). For related structures, see: Öztürk et al. (2004a[Öztürk, S., Akkurt, M., Cansız, A., Koparır, M., Şekerci, M. & Heinemann, F. W. (2004a). Acta Cryst. E60, o425-o427.],b[Öztürk, S., Akkurt, M., Cansız, A., Koparır, M., Şekerci, M. & Heinemann, F. W. (2004b). Acta Cryst. E60, o642-o644.]). For hydrogen-bond graph-set terminology, see: Bernstein et al. (1995[Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.]); Etter (1990[Etter, M. C. (1990). Acc. Chem. Res. 23, 120-126.]).

[Scheme 1]

Experimental

Crystal data
  • C18H19N3O3

  • Mr = 325.36

  • Monoclinic, P 21 /c

  • a = 26.784 (4) Å

  • b = 14.824 (2) Å

  • c = 8.1108 (11) Å

  • β = 96.522 (3)°

  • V = 3199.5 (8) Å3

  • Z = 8

  • Mo Kα radiation

  • μ = 0.09 mm−1

  • T = 100 (2) K

  • 0.50 × 0.50 × 0.20 mm

Data collection
  • Bruker SMART CCD area-detector diffractometer

  • Absorption correction: none

  • 18196 measured reflections

  • 6524 independent reflections

  • 4463 reflections with I > 2σ(I)

  • Rint = 0.061

Refinement
  • R[F2 > 2σ(F2)] = 0.045

  • wR(F2) = 0.083

  • S = 0.93

  • 6524 reflections

  • 445 parameters

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.21 e Å−3

  • Δρmin = −0.21 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
N3—H3N⋯O4i 0.972 (18) 1.784 (19) 2.7463 (18) 169.6 (17)
N6—H6N⋯O1ii 0.931 (16) 1.936 (17) 2.8429 (18) 164.2 (16)
Symmetry codes: (i) [-x+1, y+{\script{3\over 2}}, -z+{\script{1\over 2}}]; (ii) [-x+1, y-{\script{3\over 2}}, -z+{\script{1\over 2}}].

Data collection: SMART (Bruker, 2001[Bruker (2001). SMART. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2002[Bruker (2002). SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXTL.

Supporting information


Comment top

Substituted triazole derivatives are an important class of organic compounds showing significant biological activity, such as antimicrobial (Holla et al., 1998), analgesic (Turan-Zitouni et al., 1999), antitumor (Demirbas et al., 2002), antihypertensive (Paulvannan et al., 2000) and antiviral (Kritsanida et al., 2002) activities. As a continuation of our interest in the synthesis and biological activity of aryloxyacetyl hydrazide derivatives, we report here the synthesis and crystal structure of the title compound (Fig. 1).

The asymmetric unit of the title compound consists of two crystallographically independent molecules with very similar geometry. All bond lengths and angles are unexceptional and comparable with those observed in related structures (Öztürk et al., 2004a,b). The N2C1 (1.2955 (19) Å) and N5C19 (1.2971 (19) Å) bonds show double bond character. The dihedral angles formed by the triazole ring with the aromatic rings of the 4-methoxyphenyl and 3-methoxyphenyl groups are 57.96 (6) and 7.01 (6)° in the molecule containing the N1–N3 atoms, and 64.37 (6) and 10.73 (5)° in the molecule containing the N4–N6 atoms. In the crystal packing (Fig. 2), the two independent molecules are linked into a dimer by intermolecular N—H···O hydrogen bonds (Table 1) generating a ring of graph-set R22(8) (Etter, 1990; Bernstein et al., 1995).

Related literature top

For the biological activities of triazole derivatives, see: Demirbas et al. (2002); Holla et al. (1998); Omar et al. (1986); Paulvannan et al. (2000); Turan-Zitouni et al. (1999); Kritsanida et al. (2002). For related structures, see: Öztürk et al. (2004a,b). For hydrogen-bond graph-set terminology, see: Bernstein et al. (1995); Etter (1990).

Experimental top

The synthesis of the title compound was carried out by refluxing a solution of 4-(3-methoxyphenyl)-1-(3-(4-methoxyphenyl)propanoyl)semicarbazide (3.43 g, 10 mmol) in 2 M NaOH for 5 h. Single crystals suitable for X-ray measurements were obtained on slow evaporation of an aqeous ethanol solution at room temperature (yield: 90%; m.p. 407–408 K).

Refinement top

H atoms bonded to C atoms were included in calculated positions and refined using the riding model approximation, with C—H = 0.95-0.99 Å and with Uiso(H) = 1.2 Ueq(C) or 1.5 Ueq(C) for methyl H atoms. Atoms H3N and H6N were located in a difference Fourier map and refined isotropically.

Computing details top

Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); 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).

Figures top
[Figure 1] Fig. 1. The molecular structure of the title compound with 50% probability displacement ellipsoids (arbitrary spheres for H atoms).
[Figure 2] Fig. 2. Crystal packing of the title compound viewed along the c axis. Hydrogen bonds are shown as dotted lines.
4-(3-Methoxyphenyl)-3-[2-(4-methoxyphenyl)ethyl]-1H-1,2,4- triazol-5(4H)-one top
Crystal data top
C18H19N3O3F(000) = 1376
Mr = 325.36Dx = 1.351 Mg m3
Monoclinic, P21/cMelting point: 407(1) K
Hall symbol: -P 2ybcMo Kα radiation, λ = 0.71073 Å
a = 26.784 (4) ÅCell parameters from 1009 reflections
b = 14.824 (2) Åθ = 2.7–26.4°
c = 8.1108 (11) ŵ = 0.09 mm1
β = 96.522 (3)°T = 100 K
V = 3199.5 (8) Å3Irregular, colourless
Z = 80.50 × 0.50 × 0.20 mm
Data collection top
Bruker SMART CCD area-detector
diffractometer
4463 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.061
Graphite monochromatorθmax = 26.4°, θmin = 2.1°
ϕ and ω scansh = 2933
18196 measured reflectionsk = 918
6524 independent reflectionsl = 109
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.045Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.083H atoms treated by a mixture of independent and constrained refinement
S = 0.93 w = 1/[σ2(Fo2) + (0.022P)2]
where P = (Fo2 + 2Fc2)/3
6524 reflections(Δ/σ)max = 0.001
445 parametersΔρmax = 0.21 e Å3
0 restraintsΔρmin = 0.21 e Å3
Crystal data top
C18H19N3O3V = 3199.5 (8) Å3
Mr = 325.36Z = 8
Monoclinic, P21/cMo Kα radiation
a = 26.784 (4) ŵ = 0.09 mm1
b = 14.824 (2) ÅT = 100 K
c = 8.1108 (11) Å0.50 × 0.50 × 0.20 mm
β = 96.522 (3)°
Data collection top
Bruker SMART CCD area-detector
diffractometer
4463 reflections with I > 2σ(I)
18196 measured reflectionsRint = 0.061
6524 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0450 restraints
wR(F2) = 0.083H atoms treated by a mixture of independent and constrained refinement
S = 0.93Δρmax = 0.21 e Å3
6524 reflectionsΔρmin = 0.21 e Å3
445 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.

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
O10.80652 (4)1.26410 (8)0.38630 (14)0.0241 (3)
O21.01067 (4)1.08446 (8)0.35402 (14)0.0250 (3)
O30.88400 (4)0.52515 (8)0.49269 (14)0.0224 (3)
N10.83241 (5)1.11201 (9)0.40707 (16)0.0168 (3)
N20.76150 (5)1.04721 (9)0.30095 (16)0.0200 (3)
N30.75591 (5)1.14005 (10)0.30968 (18)0.0210 (3)
H3N0.7259 (6)1.1699 (13)0.258 (2)0.049 (6)*
C10.80770 (6)1.03201 (11)0.36030 (19)0.0165 (4)
C20.79850 (6)1.18218 (12)0.3694 (2)0.0196 (4)
C30.88409 (6)1.12582 (11)0.4688 (2)0.0170 (4)
C40.92115 (6)1.09601 (11)0.37531 (19)0.0176 (4)
H40.91241.06620.27240.021*
C50.97099 (6)1.11055 (11)0.4347 (2)0.0188 (4)
C60.98332 (6)1.15633 (12)0.5836 (2)0.0229 (4)
H61.01761.16700.62330.027*
C70.94588 (6)1.18619 (12)0.6732 (2)0.0232 (4)
H70.95461.21750.77460.028*
C80.89570 (6)1.17121 (11)0.6175 (2)0.0208 (4)
H80.86991.19160.67980.025*
C91.00001 (6)1.04758 (13)0.1916 (2)0.0273 (5)
H9A0.97910.99360.19620.041*
H9B1.03161.03140.14850.041*
H9C0.98211.09240.11840.041*
C100.82961 (6)0.93970 (11)0.37288 (19)0.0184 (4)
H10A0.86280.94160.32990.022*
H10B0.80770.89930.29910.022*
C110.83669 (6)0.89770 (11)0.54600 (19)0.0199 (4)
H11A0.86460.92850.61450.024*
H11B0.80570.90590.60020.024*
C120.84841 (6)0.79782 (12)0.53503 (19)0.0166 (4)
C130.89660 (6)0.76489 (12)0.57477 (19)0.0199 (4)
H130.92280.80510.61540.024*
C140.90727 (6)0.67427 (12)0.5562 (2)0.0204 (4)
H140.94070.65320.58200.024*
C150.86938 (6)0.61408 (11)0.50016 (19)0.0169 (4)
C160.82093 (6)0.64531 (12)0.46004 (19)0.0178 (4)
H160.79470.60490.42100.021*
C170.81113 (6)0.73673 (12)0.47759 (19)0.0189 (4)
H170.77780.75810.44930.023*
C180.84577 (6)0.45979 (12)0.4460 (2)0.0233 (4)
H18A0.81980.46350.52180.035*
H18B0.86060.39930.45180.035*
H18C0.83070.47180.33230.035*
O40.32218 (4)0.25770 (8)0.33832 (14)0.0232 (3)
O50.52563 (4)0.08829 (9)0.35036 (14)0.0252 (3)
O60.38708 (4)0.49050 (8)0.53429 (13)0.0214 (3)
N40.34705 (5)0.10875 (9)0.40056 (16)0.0167 (3)
N50.27715 (5)0.03721 (9)0.30255 (17)0.0200 (3)
N60.27211 (5)0.13024 (9)0.28110 (18)0.0198 (3)
H6N0.2432 (6)0.1546 (12)0.223 (2)0.034 (5)*
C190.32257 (6)0.02667 (11)0.3744 (2)0.0173 (4)
C200.31384 (6)0.17568 (12)0.3389 (2)0.0182 (4)
C210.39848 (6)0.12574 (11)0.4633 (2)0.0161 (4)
C220.43614 (6)0.09321 (11)0.37456 (19)0.0168 (4)
H220.42810.05770.27770.020*
C230.48550 (6)0.11357 (11)0.4300 (2)0.0177 (4)
C240.49701 (6)0.16566 (12)0.5723 (2)0.0219 (4)
H240.53100.18010.60960.026*
C250.45893 (6)0.19599 (12)0.6587 (2)0.0234 (4)
H250.46700.23060.75670.028*
C260.40919 (6)0.17697 (12)0.6052 (2)0.0210 (4)
H260.38300.19860.66460.025*
C270.51482 (6)0.04444 (13)0.1937 (2)0.0276 (4)
H27A0.49420.08420.11710.041*
H27B0.54630.03060.14830.041*
H27C0.49650.01170.20820.041*
C280.34597 (6)0.06097 (11)0.4281 (2)0.0192 (4)
H28A0.37450.07310.36350.023*
H28B0.35940.05710.54670.023*
C290.30904 (6)0.13794 (11)0.4045 (2)0.0253 (4)
H29A0.28250.12790.47820.030*
H29B0.29270.13630.28870.030*
C300.33070 (6)0.23100 (11)0.4386 (2)0.0179 (4)
C310.37623 (6)0.24682 (12)0.5333 (2)0.0201 (4)
H310.39530.19720.58030.024*
C320.39445 (6)0.33361 (11)0.5607 (2)0.0195 (4)
H320.42620.34310.62330.023*
C330.36632 (6)0.40670 (11)0.49654 (19)0.0166 (4)
C340.32082 (6)0.39336 (12)0.40142 (19)0.0182 (4)
H340.30150.44300.35590.022*
C350.30397 (6)0.30552 (12)0.3740 (2)0.0199 (4)
H350.27280.29600.30800.024*
C360.35951 (6)0.56700 (11)0.4650 (2)0.0235 (4)
H36A0.35590.56290.34360.035*
H36B0.37760.62240.50010.035*
H36C0.32620.56800.50390.035*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0235 (7)0.0120 (7)0.0356 (8)0.0005 (6)0.0020 (5)0.0000 (6)
O20.0208 (6)0.0277 (8)0.0267 (7)0.0027 (6)0.0036 (5)0.0061 (6)
O30.0244 (7)0.0133 (7)0.0288 (7)0.0011 (6)0.0003 (5)0.0011 (5)
N10.0169 (7)0.0131 (8)0.0200 (8)0.0007 (6)0.0000 (6)0.0004 (6)
N20.0230 (8)0.0126 (8)0.0241 (8)0.0008 (7)0.0020 (6)0.0007 (6)
N30.0212 (8)0.0126 (8)0.0285 (9)0.0008 (7)0.0008 (7)0.0017 (7)
C10.0200 (9)0.0159 (10)0.0138 (9)0.0008 (8)0.0031 (7)0.0000 (7)
C20.0206 (10)0.0177 (10)0.0205 (10)0.0011 (8)0.0024 (7)0.0003 (8)
C30.0187 (9)0.0120 (9)0.0196 (9)0.0007 (8)0.0008 (7)0.0037 (7)
C40.0243 (10)0.0133 (9)0.0148 (9)0.0020 (8)0.0001 (7)0.0013 (7)
C50.0222 (9)0.0148 (10)0.0191 (9)0.0005 (8)0.0006 (7)0.0013 (8)
C60.0218 (9)0.0200 (10)0.0253 (10)0.0024 (8)0.0040 (8)0.0010 (8)
C70.0293 (10)0.0204 (11)0.0183 (10)0.0000 (9)0.0046 (8)0.0036 (8)
C80.0269 (10)0.0151 (10)0.0205 (10)0.0009 (8)0.0038 (8)0.0003 (8)
C90.0265 (10)0.0282 (12)0.0276 (11)0.0013 (9)0.0058 (8)0.0073 (9)
C100.0220 (9)0.0150 (10)0.0182 (9)0.0002 (8)0.0027 (7)0.0005 (7)
C110.0228 (9)0.0180 (10)0.0188 (9)0.0000 (8)0.0023 (7)0.0017 (8)
C120.0221 (9)0.0171 (10)0.0112 (9)0.0003 (8)0.0038 (7)0.0010 (7)
C130.0225 (10)0.0181 (10)0.0191 (10)0.0044 (8)0.0020 (7)0.0010 (8)
C140.0195 (9)0.0193 (10)0.0218 (10)0.0014 (8)0.0002 (7)0.0008 (8)
C150.0240 (9)0.0148 (10)0.0122 (9)0.0025 (8)0.0035 (7)0.0020 (7)
C160.0201 (9)0.0194 (10)0.0137 (9)0.0035 (8)0.0006 (7)0.0005 (7)
C170.0204 (9)0.0203 (10)0.0162 (9)0.0044 (8)0.0026 (7)0.0039 (8)
C180.0307 (10)0.0154 (10)0.0236 (10)0.0050 (9)0.0025 (8)0.0023 (8)
O40.0222 (6)0.0125 (7)0.0346 (7)0.0001 (6)0.0016 (5)0.0010 (6)
O50.0186 (6)0.0301 (8)0.0274 (7)0.0001 (6)0.0044 (5)0.0034 (6)
O60.0244 (6)0.0121 (7)0.0264 (7)0.0008 (5)0.0024 (5)0.0000 (5)
N40.0168 (7)0.0117 (8)0.0219 (8)0.0002 (6)0.0029 (6)0.0008 (6)
N50.0220 (8)0.0119 (8)0.0263 (8)0.0005 (7)0.0037 (6)0.0028 (7)
N60.0172 (8)0.0130 (8)0.0283 (9)0.0007 (7)0.0002 (7)0.0035 (7)
C190.0174 (9)0.0148 (10)0.0203 (9)0.0018 (8)0.0048 (7)0.0002 (8)
C200.0191 (9)0.0168 (10)0.0194 (9)0.0016 (8)0.0056 (7)0.0016 (8)
C210.0171 (9)0.0116 (9)0.0193 (9)0.0007 (7)0.0009 (7)0.0047 (7)
C220.0216 (9)0.0127 (9)0.0157 (9)0.0013 (8)0.0004 (7)0.0001 (7)
C230.0186 (9)0.0139 (9)0.0206 (9)0.0007 (8)0.0027 (7)0.0051 (7)
C240.0207 (9)0.0201 (10)0.0234 (10)0.0048 (8)0.0047 (8)0.0021 (8)
C250.0331 (11)0.0190 (10)0.0169 (9)0.0008 (9)0.0017 (8)0.0025 (8)
C260.0256 (10)0.0181 (10)0.0194 (10)0.0022 (8)0.0038 (8)0.0005 (8)
C270.0273 (10)0.0301 (12)0.0270 (11)0.0023 (9)0.0095 (8)0.0062 (9)
C280.0198 (9)0.0160 (10)0.0216 (10)0.0002 (8)0.0012 (7)0.0010 (8)
C290.0195 (9)0.0176 (11)0.0381 (11)0.0006 (8)0.0002 (8)0.0051 (9)
C300.0181 (9)0.0142 (10)0.0217 (10)0.0013 (8)0.0037 (7)0.0028 (8)
C310.0216 (9)0.0147 (10)0.0236 (10)0.0038 (8)0.0014 (7)0.0017 (8)
C320.0188 (9)0.0174 (10)0.0212 (10)0.0010 (8)0.0023 (7)0.0004 (8)
C330.0204 (9)0.0137 (9)0.0161 (9)0.0033 (8)0.0043 (7)0.0033 (7)
C340.0196 (9)0.0154 (10)0.0193 (9)0.0041 (8)0.0009 (7)0.0017 (8)
C350.0174 (9)0.0224 (11)0.0192 (10)0.0004 (8)0.0009 (7)0.0016 (8)
C360.0317 (10)0.0122 (10)0.0260 (10)0.0016 (8)0.0005 (8)0.0015 (8)
Geometric parameters (Å, º) top
O1—C21.238 (2)O4—C201.236 (2)
O2—C51.3656 (18)O5—C231.3677 (18)
O2—C91.4248 (18)O5—C271.4272 (19)
O3—C151.3786 (19)O6—C331.3810 (19)
O3—C181.4292 (18)O6—C361.4328 (19)
N1—C11.390 (2)N4—C191.387 (2)
N1—C21.392 (2)N4—C201.387 (2)
N1—C31.4323 (19)N4—C211.4354 (19)
N2—C11.2955 (19)N5—C191.2971 (19)
N2—N31.3871 (19)N5—N61.3947 (18)
N3—C21.342 (2)N6—C201.343 (2)
N3—H3N0.972 (18)N6—H6N0.931 (16)
C1—C101.488 (2)C19—C281.486 (2)
C3—C81.385 (2)C21—C261.382 (2)
C3—C41.388 (2)C21—C221.390 (2)
C4—C51.384 (2)C22—C231.381 (2)
C4—H40.9500C22—H220.9500
C5—C61.392 (2)C23—C241.394 (2)
C6—C71.377 (2)C24—C251.377 (2)
C6—H60.9500C24—H240.9500
C7—C81.386 (2)C25—C261.383 (2)
C7—H70.9500C25—H250.9500
C8—H80.9500C26—H260.9500
C9—H9A0.9800C27—H27A0.9800
C9—H9B0.9800C27—H27B0.9800
C9—H9C0.9800C27—H27C0.9800
C10—C111.528 (2)C28—C291.508 (2)
C10—H10A0.9900C28—H28A0.9900
C10—H10B0.9900C28—H28B0.9900
C11—C121.518 (2)C29—C301.510 (2)
C11—H11A0.9900C29—H29A0.9900
C11—H11B0.9900C29—H29B0.9900
C12—C131.383 (2)C30—C311.385 (2)
C12—C171.389 (2)C30—C351.386 (2)
C13—C141.385 (2)C31—C321.385 (2)
C13—H130.9500C31—H310.9500
C14—C151.388 (2)C32—C331.387 (2)
C14—H140.9500C32—H320.9500
C15—C161.381 (2)C33—C341.381 (2)
C16—C171.391 (2)C34—C351.388 (2)
C16—H160.9500C34—H340.9500
C17—H170.9500C35—H350.9500
C18—H18A0.9800C36—H36A0.9800
C18—H18B0.9800C36—H36B0.9800
C18—H18C0.9800C36—H36C0.9800
C5—O2—C9117.80 (12)C23—O5—C27117.02 (12)
C15—O3—C18117.49 (12)C33—O6—C36116.64 (12)
C1—N1—C2107.42 (13)C19—N4—C20107.44 (13)
C1—N1—C3128.95 (14)C19—N4—C21128.77 (14)
C2—N1—C3123.41 (14)C20—N4—C21123.53 (14)
C1—N2—N3104.94 (14)C19—N5—N6104.34 (13)
C2—N3—N2112.82 (14)C20—N6—N5112.79 (13)
C2—N3—H3N124.9 (11)C20—N6—H6N126.3 (11)
N2—N3—H3N121.2 (11)N5—N6—H6N120.7 (11)
N2—C1—N1110.98 (15)N5—C19—N4111.47 (15)
N2—C1—C10122.56 (15)N5—C19—C28125.42 (15)
N1—C1—C10126.46 (14)N4—C19—C28123.08 (14)
O1—C2—N3128.76 (16)O4—C20—N6129.45 (16)
O1—C2—N1127.46 (15)O4—C20—N4126.59 (15)
N3—C2—N1103.78 (14)N6—C20—N4103.95 (14)
C8—C3—C4121.78 (15)C26—C21—C22121.84 (15)
C8—C3—N1119.09 (14)C26—C21—N4119.46 (15)
C4—C3—N1119.09 (14)C22—C21—N4118.64 (14)
C5—C4—C3118.80 (15)C23—C22—C21118.69 (15)
C5—C4—H4120.6C23—C22—H22120.7
C3—C4—H4120.6C21—C22—H22120.7
O2—C5—C4124.17 (15)O5—C23—C22124.15 (15)
O2—C5—C6115.64 (14)O5—C23—C24115.53 (14)
C4—C5—C6120.16 (16)C22—C23—C24120.28 (15)
C7—C6—C5119.97 (16)C25—C24—C23119.69 (15)
C7—C6—H6120.0C25—C24—H24120.2
C5—C6—H6120.0C23—C24—H24120.2
C6—C7—C8120.93 (16)C24—C25—C26121.12 (16)
C6—C7—H7119.5C24—C25—H25119.4
C8—C7—H7119.5C26—C25—H25119.4
C3—C8—C7118.34 (16)C25—C26—C21118.37 (16)
C3—C8—H8120.8C25—C26—H26120.8
C7—C8—H8120.8C21—C26—H26120.8
O2—C9—H9A109.5O5—C27—H27A109.5
O2—C9—H9B109.5O5—C27—H27B109.5
H9A—C9—H9B109.5H27A—C27—H27B109.5
O2—C9—H9C109.5O5—C27—H27C109.5
H9A—C9—H9C109.5H27A—C27—H27C109.5
H9B—C9—H9C109.5H27B—C27—H27C109.5
C1—C10—C11116.39 (14)C19—C28—C29112.07 (13)
C1—C10—H10A108.2C19—C28—H28A109.2
C11—C10—H10A108.2C29—C28—H28A109.2
C1—C10—H10B108.2C19—C28—H28B109.2
C11—C10—H10B108.2C29—C28—H28B109.2
H10A—C10—H10B107.3H28A—C28—H28B107.9
C12—C11—C10110.39 (13)C28—C29—C30115.81 (13)
C12—C11—H11A109.6C28—C29—H29A108.3
C10—C11—H11A109.6C30—C29—H29A108.3
C12—C11—H11B109.6C28—C29—H29B108.3
C10—C11—H11B109.6C30—C29—H29B108.3
H11A—C11—H11B108.1H29A—C29—H29B107.4
C13—C12—C17117.66 (16)C31—C30—C35117.32 (16)
C13—C12—C11121.60 (15)C31—C30—C29123.49 (15)
C17—C12—C11120.68 (14)C35—C30—C29119.19 (14)
C12—C13—C14121.03 (16)C30—C31—C32121.21 (16)
C12—C13—H13119.5C30—C31—H31119.4
C14—C13—H13119.5C32—C31—H31119.4
C13—C14—C15120.43 (15)C31—C32—C33119.94 (15)
C13—C14—H14119.8C31—C32—H32120.0
C15—C14—H14119.8C33—C32—H32120.0
O3—C15—C16125.02 (15)C34—C33—O6124.08 (15)
O3—C15—C14115.36 (14)C34—C33—C32120.34 (16)
C16—C15—C14119.60 (16)O6—C33—C32115.58 (14)
C15—C16—C17119.05 (16)C33—C34—C35118.32 (16)
C15—C16—H16120.5C33—C34—H34120.8
C17—C16—H16120.5C35—C34—H34120.8
C12—C17—C16122.20 (15)C30—C35—C34122.85 (15)
C12—C17—H17118.9C30—C35—H35118.6
C16—C17—H17118.9C34—C35—H35118.6
O3—C18—H18A109.5O6—C36—H36A109.5
O3—C18—H18B109.5O6—C36—H36B109.5
H18A—C18—H18B109.5H36A—C36—H36B109.5
O3—C18—H18C109.5O6—C36—H36C109.5
H18A—C18—H18C109.5H36A—C36—H36C109.5
H18B—C18—H18C109.5H36B—C36—H36C109.5
C1—N2—N3—C21.75 (19)C19—N5—N6—C200.04 (18)
N3—N2—C1—N10.14 (17)N6—N5—C19—N40.11 (18)
N3—N2—C1—C10179.76 (14)N6—N5—C19—C28178.32 (15)
C2—N1—C1—N21.41 (18)C20—N4—C19—N50.22 (18)
C3—N1—C1—N2176.04 (14)C21—N4—C19—N5174.33 (14)
C2—N1—C1—C10178.19 (15)C20—N4—C19—C28178.48 (14)
C3—N1—C1—C103.6 (3)C21—N4—C19—C287.4 (2)
N2—N3—C2—O1176.86 (16)N5—N6—C20—O4179.34 (16)
N2—N3—C2—N12.54 (18)N5—N6—C20—N40.17 (18)
C1—N1—C2—O1177.09 (17)C19—N4—C20—O4179.31 (16)
C3—N1—C2—O12.1 (3)C21—N4—C20—O44.8 (3)
C1—N1—C2—N32.33 (17)C19—N4—C20—N60.23 (16)
C3—N1—C2—N3177.33 (13)C21—N4—C20—N6174.72 (13)
C1—N1—C3—C8125.99 (18)C19—N4—C21—C26121.19 (18)
C2—N1—C3—C860.1 (2)C20—N4—C21—C2665.6 (2)
C1—N1—C3—C456.1 (2)C19—N4—C21—C2261.6 (2)
C2—N1—C3—C4117.72 (18)C20—N4—C21—C22111.66 (18)
C8—C3—C4—C51.4 (2)C26—C21—C22—C230.5 (2)
N1—C3—C4—C5179.21 (14)N4—C21—C22—C23176.62 (14)
C9—O2—C5—C46.1 (2)C27—O5—C23—C225.2 (2)
C9—O2—C5—C6172.28 (15)C27—O5—C23—C24172.59 (15)
C3—C4—C5—O2179.94 (15)C21—C22—C23—O5177.57 (15)
C3—C4—C5—C61.6 (2)C21—C22—C23—C240.1 (2)
O2—C5—C6—C7179.35 (15)O5—C23—C24—C25178.55 (15)
C4—C5—C6—C70.9 (3)C22—C23—C24—C250.7 (3)
C5—C6—C7—C80.1 (3)C23—C24—C25—C261.1 (3)
C4—C3—C8—C70.4 (2)C24—C25—C26—C210.7 (3)
N1—C3—C8—C7178.24 (15)C22—C21—C26—C250.1 (3)
C6—C7—C8—C30.3 (3)N4—C21—C26—C25176.97 (15)
N2—C1—C10—C11104.32 (18)N5—C19—C28—C295.5 (2)
N1—C1—C10—C1176.1 (2)N4—C19—C28—C29172.56 (15)
C1—C10—C11—C12167.77 (14)C19—C28—C29—C30173.76 (14)
C10—C11—C12—C13103.80 (17)C28—C29—C30—C3119.9 (2)
C10—C11—C12—C1773.44 (18)C28—C29—C30—C35160.65 (15)
C17—C12—C13—C140.6 (2)C35—C30—C31—C320.6 (2)
C11—C12—C13—C14176.69 (15)C29—C30—C31—C32179.94 (15)
C12—C13—C14—C151.3 (2)C30—C31—C32—C331.8 (2)
C18—O3—C15—C162.5 (2)C36—O6—C33—C341.8 (2)
C18—O3—C15—C14176.08 (13)C36—O6—C33—C32178.02 (14)
C13—C14—C15—O3177.57 (14)C31—C32—C33—C341.8 (2)
C13—C14—C15—C161.1 (2)C31—C32—C33—O6178.34 (14)
O3—C15—C16—C17178.24 (15)O6—C33—C34—C35179.42 (14)
C14—C15—C16—C170.3 (2)C32—C33—C34—C350.8 (2)
C13—C12—C17—C160.2 (2)C31—C30—C35—C340.5 (2)
C11—C12—C17—C16177.54 (15)C29—C30—C35—C34179.00 (15)
C15—C16—C17—C120.3 (2)C33—C34—C35—C300.4 (2)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3N···O4i0.972 (18)1.784 (19)2.7463 (18)169.6 (17)
N6—H6N···O1ii0.931 (16)1.936 (17)2.8429 (18)164.2 (16)
Symmetry codes: (i) x+1, y+3/2, z+1/2; (ii) x+1, y3/2, z+1/2.

Experimental details

Crystal data
Chemical formulaC18H19N3O3
Mr325.36
Crystal system, space groupMonoclinic, P21/c
Temperature (K)100
a, b, c (Å)26.784 (4), 14.824 (2), 8.1108 (11)
β (°) 96.522 (3)
V3)3199.5 (8)
Z8
Radiation typeMo Kα
µ (mm1)0.09
Crystal size (mm)0.50 × 0.50 × 0.20
Data collection
DiffractometerBruker SMART CCD area-detector
diffractometer
Absorption correction
No. of measured, independent and
observed [I > 2σ(I)] reflections
18196, 6524, 4463
Rint0.061
(sin θ/λ)max1)0.625
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.045, 0.083, 0.93
No. of reflections6524
No. of parameters445
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.21, 0.21

Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N3—H3N···O4i0.972 (18)1.784 (19)2.7463 (18)169.6 (17)
N6—H6N···O1ii0.931 (16)1.936 (17)2.8429 (18)164.2 (16)
Symmetry codes: (i) x+1, y+3/2, z+1/2; (ii) x+1, y3/2, z+1/2.
 

Acknowledgements

The authors gratefully acknowledge funds from the Higher Education Commission, Islamabad, Pakistan.

References

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