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Volume 69 
Part 1 
Page o39  
January 2013  

Received 2 December 2012
Accepted 3 December 2012
Online 8 December 2012

Key indicators
Single-crystal X-ray study
T = 123 K
Mean [sigma](C-C) = 0.002 Å
R = 0.035
wR = 0.095
Data-to-parameter ratio = 16.2
Details
Open access

2-(2,4-Dichlorophenyl)-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)acetamide

aDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA,bLake Braddock Secondary School, 9200 Burke Lake Road, Burke, VA 22015, USA,cDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, India, and dDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India
Correspondence e-mail: rbutcher99@yahoo.com

In the crystal structure of the title compound, C19H17Cl2N3O2, the molecules form dimers of the R22(10) type through N-H...O hydrogen bonding. As a result of steric repulsion, the amide group is rotated with respect to both the dichlorophenyl and 2,3-dihydro-1H-pyrazol-4-yl rings, making dihedral angles of 80.70 (13) and 64.82 (12)°, respectively. The dihedral angle between the dichlorophenyl and 2,3-dihydro-1H-pyrazol-4-yl rings is 48.45 (5)° while that between the 2,3-dihydro-1H-pyrazol-4-yl and phenyl rings is 56.33 (6)°.

Related literature

For a description of the Cambridge Structural Database, see: Allen (2002[Allen, F. H. (2002). Acta Cryst. B58, 380-388.]). For hydrogen-bond motifs, see: Bernstein et al. (1995[Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.]). For N-substituted 2-arylacetamides and amides, see: Mijin & Marinkovic (2006[Mijin, D. & Marinkovic, A. (2006). Synth. Commun. 36, 193-198.]); Mijin et al. (2008[Mijin, D. Z., Prascevic, M. & Petrovic, S. D. (2008). J. Serb. Chem. Soc. 73, 945-950.]); Fun et al. (2011a[Fun, H.-K., Quah, C. K., Narayana, B., Nayak, P. S. & Sarojini, B. K. (2011a). Acta Cryst. E67, o2926-o2927.],b[Fun, H.-K., Quah, C. K., Narayana, B., Nayak, P. S. & Sarojini, B. K. (2011b). Acta Cryst. E67, o2941-o2942.]); Fun, Shahani et al. (2012[Fun, H.-K., Shahani, T., Nayak, P. S., Narayana, B. & Sarojini, B. K. (2012). Acta Cryst. E68, o519.]); Fun, Quah et al. (2012[Fun, H.-K., Quah, C. K., Nayak, P. S., Narayana, B. & Sarojini, B. K. (2012). Acta Cryst. E68, o2677.]); Wu et al. (2008[Wu, W.-N., Cheng, F.-X., Yan, L. & Tang, N. (2008). J. Coord. Chem. 61, 2207-2215.], 2010[Wu, W.-N., Wang, Y., Zhang, A.-Y., Zhao, R.-Q. & Wang, Q.-F. (2010). Acta Cryst. E66, m288.]).

[Scheme 1]

Experimental

Crystal data
  • C19H17Cl2N3O2

  • Mr = 390.26

  • Monoclinic, C 2/c

  • a = 25.1853 (5) Å

  • b = 8.18108 (9) Å

  • c = 21.0978 (4) Å

  • [beta] = 119.772 (3)°

  • V = 3773.26 (16) Å3

  • Z = 8

  • Cu K[alpha] radiation

  • [mu] = 3.25 mm-1

  • T = 123 K

  • 0.59 × 0.22 × 0.08 mm

Data collection
  • Agilent Xcalibur (Ruby, Gemini) diffractometer

  • Absorption correction: analytical [CrysAlis PRO (Agilent, 2011[Agilent (2011). CrysAlis PRO and CrysAlis RED. Agilent Technologies, Yarnton, England.]), based on expressions derived by Clark & Reid (1995[Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897.])] Tmin = 0.429, Tmax = 0.804

  • 12628 measured reflections

  • 3849 independent reflections

  • 3663 reflections with I > 2[sigma](I)

  • Rint = 0.027

Refinement
  • R[F2 > 2[sigma](F2)] = 0.035

  • wR(F2) = 0.095

  • S = 1.05

  • 3849 reflections

  • 237 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.57 e Å-3

  • [Delta][rho]min = -0.30 e Å-3

Table 1
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
N1-H1A...O2i 0.88 1.92 2.7938 (15) 171
Symmetry code: (i) [-x+1, y, -z+{\script{3\over 2}}].

Data collection: CrysAlis PRO (Agilent, 2011[Agilent (2011). CrysAlis PRO and CrysAlis RED. Agilent Technologies, Yarnton, England.]); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; 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.


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT6879 ).


Acknowledgements

RJB acknowledges the NSF-MRI program (grant No. CHE-0619278) for funds to purchase the diffractometer.

References

Agilent (2011). CrysAlis PRO and CrysAlis RED. Agilent Technologies, Yarnton, England.
Allen, F. H. (2002). Acta Cryst. B58, 380-388.  [ISI] [CrossRef] [details]
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.  [CrossRef] [ChemPort] [ISI]
Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897.  [CrossRef] [details]
Fun, H.-K., Quah, C. K., Narayana, B., Nayak, P. S. & Sarojini, B. K. (2011a). Acta Cryst. E67, o2926-o2927.  [CSD] [CrossRef] [details]
Fun, H.-K., Quah, C. K., Narayana, B., Nayak, P. S. & Sarojini, B. K. (2011b). Acta Cryst. E67, o2941-o2942.  [CSD] [CrossRef] [details]
Fun, H.-K., Quah, C. K., Nayak, P. S., Narayana, B. & Sarojini, B. K. (2012). Acta Cryst. E68, o2677.  [CSD] [CrossRef] [details]
Fun, H.-K., Shahani, T., Nayak, P. S., Narayana, B. & Sarojini, B. K. (2012). Acta Cryst. E68, o519.  [CSD] [CrossRef] [details]
Mijin, D. & Marinkovic, A. (2006). Synth. Commun. 36, 193-198.  [ISI] [CrossRef] [ChemPort]
Mijin, D. Z., Prascevic, M. & Petrovic, S. D. (2008). J. Serb. Chem. Soc. 73, 945-950.  [ISI] [CrossRef] [ChemPort]
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Wu, W.-N., Cheng, F.-X., Yan, L. & Tang, N. (2008). J. Coord. Chem. 61, 2207-2215.  [ISI] [CrossRef] [ChemPort]
Wu, W.-N., Wang, Y., Zhang, A.-Y., Zhao, R.-Q. & Wang, Q.-F. (2010). Acta Cryst. E66, m288.  [CSD] [CrossRef] [details]


Acta Cryst (2013). E69, o39  [ doi:10.1107/S1600536812049628 ]

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