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Volume 65 
Part 4 
Page o823  
April 2009  

Received 13 March 2009
Accepted 16 March 2009
Online 25 March 2009

Key indicators
Single-crystal X-ray study
T = 298 K
Mean [sigma](C-C) = 0.004 Å
R = 0.037
wR = 0.090
Data-to-parameter ratio = 14.0
Details
Open access

1,3-Dibenzyloxy-5-(bromomethyl)benzene

aSchool of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, People's Republic of China
Correspondence e-mail: chm_zhuph@ujn.edu.cn

In the title compound, C21H19BrO2, the dihedral angles between the central benzene ring and the two peripheral rings are 50.28 (5) and 69.75 (2)°. The O-CH2 bonds lie in the plane of the central ring and adopt a syn-anti conformation.

Related literature

For related compounds, see: Pan et al. (2005[Pan, Z.-G., Cheung, E. Y., Harris, K. D. M., Constable, E. C. & Housecroft, C. E. (2005). Cryst. Growth Des. 5, 2084-2090.]); Xiao et al. (2007[Xiao, Z.-P., Fang, R.-Q., Shi, L., Ding, H., Chen, X. & Zhu, H.-L. (2007). Can. J. Chem. 85, 951-957.]); For the synthesis, see: Hawker & Fréchet (1990[Hawker, C. J. & Fréchet, J. M. (1990). J. Am. Chem. Soc. 112, 7638-7647.]).

[Scheme 1]

Experimental

Crystal data
  • C21H19BrO2

  • Mr = 383.27

  • Triclinic, [P \overline 1]

  • a = 4.4449 (17) Å

  • b = 11.982 (5) Å

  • c = 16.726 (6) Å

  • [alpha] = 86.834 (7)°

  • [beta] = 87.509 (7)°

  • [gamma] = 86.524 (7)°

  • V = 887.1 (6) Å3

  • Z = 2

  • Mo K[alpha] radiation

  • [mu] = 2.33 mm-1

  • T = 298 K

  • 0.20 × 0.15 × 0.10 mm

Data collection
  • Bruker APEXII CCD area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 2003[Sheldrick, G. M. (2003). SADABS. University of Göttingen, Germany.]) Tmin = 0.653, Tmax = 0.801

  • 4223 measured reflections

  • 3030 independent reflections

  • 2199 reflections with I > 2[sigma](I)

  • Rint = 0.023

Refinement
  • R[F2 > 2[sigma](F2)] = 0.037

  • wR(F2) = 0.090

  • S = 1.02

  • 3030 reflections

  • 217 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.38 e Å-3

  • [Delta][rho]min = -0.40 e Å-3

Data collection: APEX2 (Bruker, 2004[Bruker (2004). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT-Plus (Bruker, 2001[Bruker (2001). SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXL97 (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: XP in SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: XP in SHELXTL.


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG2488 ).


Acknowledgements

This work was supported by Shandong Province (2007BS02016) and the Key Subject Research Foundation of Shandong Province (XTD 0705).

References

Bruker (2001). SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2004). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
Hawker, C. J. & Fréchet, J. M. (1990). J. Am. Chem. Soc. 112, 7638-7647.  [CrossRef] [ChemPort] [ISI]
Pan, Z.-G., Cheung, E. Y., Harris, K. D. M., Constable, E. C. & Housecroft, C. E. (2005). Cryst. Growth Des. 5, 2084-2090.  [CSD] [CrossRef] [ChemPort]
Sheldrick, G. M. (2003). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Xiao, Z.-P., Fang, R.-Q., Shi, L., Ding, H., Chen, X. & Zhu, H.-L. (2007). Can. J. Chem. 85, 951-957.  [ISI] [CSD] [CrossRef] [ChemPort]


Acta Cryst (2009). E65, o823  [ doi:10.1107/S1600536809009672 ]

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