Received 22 June 2010
The title compound, [Al2(C32H48NO3)2], exists as a dimer with bridging ethoxide groups. It was isolated from a reaction mixture of the parent ligand and trimethylaluminium in tetrahydrofuran. The geometry around the AlIII atom is a slightly distorted trigonal-bipyramid, typical of atrane derivatives.
For background to atranes, see: Voronkov & Baryshok (1982). For recent alumatrane work, see: Su et al. (2006) and references therein. For related structures and their activity in lactide polymerization, see: Johnson et al. (2009).
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: enCIFer (Allen et al., 2004).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: PK2252 ).
This work was generously supported by Kenyon College Startup Funds, Kenyon College Summer Science Scholars Program (SLH), the American Chemical Society's Petroleum Research Fund (42880-GB 7) (YDYLG) and the National Science Foundation (CHE-0521237) (JMT).
Allen, F. H., Johnson, O., Shields, G. P., Smith, B. R. & Towler, M. (2004). J. Appl. Cryst. 37, 335-338.
Bruker (1999). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Johnson, A. L., Davidson, M. G., Pérez, Y., Jones, M. D., Merle, N., Raithby, P. R. & Richards, S. P. (2009). Dalton Trans. pp. 5551-5558.
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466-470.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Su, W., Kim, Y., Ellern, A., Guzei, I. A. & Verkade, J. G. (2006). J. Am. Chem. Soc. 128, 13727-13735.
Voronkov, M. G. & Baryshok, V. P. (1982). J. Organomet. Chem. 239, 199-249.