Triphen­yl(tetra­hydro­furan)­aluminium(III)

Chen, C.-R.; Gau, H.-M.

doi:10.1107/S1600536808032091

Volume 64
Part 11
Page m1381
November 2008

Received 24 September 2008
Accepted 6 October 2008
Online 11 October 2008

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.004 Å
R = 0.048
wR = 0.162
Data-to-parameter ratio = 17.5
Details

Triphenyl(tetrahydrofuran)aluminium(III)

Chi-Ren Chen ^a and Han-Mou Gau ^a ^*

^aDepartment of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
Correspondence e-mail: hmgau@dragon.nchu.edu.tw

In the title compound, [Al(C₆H₅)₃(C₄H₈O)], the Al atom has a distorted tetrahedral geometry. The C-Al-C angles range from 113.25 (7) to 116.27 (8)°, much larger than the O-Al-C angles, which range from 103.39 (7) to 103.90 (6)°. The tetrahydrofuran ring adopts an envelope conformation. The crystal packing is stabilized by C-H [pi] interactions.

Related literature

For general background, see: Chen et al. (2007); Ku et al. (2007); Wu & Gau (2006). For related structures, see: Barber et al. (1982); De Mel & Oliver (1989); Jerius et al. (1986); Malone & McDonald (1967).

Experimental

Crystal data

[Al(C₆H₅)₃(C₄H₈O)]
M_r = 330.38
Monoclinic, P 2₁ /c
a = 9.649 (2) Å
b = 12.966 (3) Å
c = 16.038 (4) Å
= 104.210 (4)°
V = 1945.2 (8) Å³
Z = 4
Mo K radiation
= 0.11 mm^-1
T = 293 (2) K
0.58 × 0.42 × 0.21 mm

Data collection

Bruker SMART 1000 CCD diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.799, T_max = 1.000 (expected range = 0.781-0.977)
10682 measured reflections
3804 independent reflections
2971 reflections with I > 2(I)
R_int = 0.023

Refinement

R[F² > 2(F²)] = 0.048
wR(F²) = 0.162
S = 1.33
3804 reflections
217 parameters
H-atom parameters constrained
_max = 0.27 e Å^-3
_min = -0.23 e Å^-3

Table 1
Selected bond lengths (Å)

Al1-O1	1.8972 (13)
Al1-C1	1.9783 (18)
Al1-C13	1.9800 (18)
Al1-C7	1.9809 (19)

Table 2
Hydrogen-bond geometry (Å, °)

Cg1 is the centroid of the C1-C6 ring.

D-HA	D-H	HA	DA	D-HA
C16-H16Cg1ⁱ	0.93	2.78	3.654 (4)	156
C19-H19ACg1ⁱⁱ	0.97	2.81	3.600 (4)	139
Symmetry codes: (i) x+1, y, z; (ii) $[-x+1, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]$ .

Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT; 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.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CI2683 ).

Acknowledgements

This work was supported by a grant from the National Science Council of Taiwan (grant No. NSC 96-2113-M-005-007-MY3)

References

Barber, M., Liptak, D. & Oliver, J. P. (1982). Organometallics, 1, 1307-1311.
Chen, C.-A., Wu, K.-H. & Gau, H.-M. (2007). Angew. Chem. Int. Ed. 46, 5373-5376.
De Mel, V. S. J. & Oliver, J. P. (1989). Organometallics, 8, 827-830.
Jerius, J. J., Hahn, J. M., Rahman, A. F. M. M., Mols, O., Ilsley, W. H. & Oliver, J. P. (1986). Organometallics, 5, 1812-1814.
Ku, S.-L., Hui, X.-P., Chen, C.-A., Kuo, Y.-Y. & Gau, H.-M. (2007). Chem. Commun. pp. 3847-3849.
Malone, J. F. & McDonald, W. S. (1967). Chem. Commun. pp. 444-445.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.
Wu, K.-H. & Gau, H.-M. (2006). J. Am. Chem. Soc. 128, 14808-14809.

metal-organic compounds