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The measured intensities were processed with the Lorentz
and polarization effects and crystal decomposition. In case
of 2 the crystal decomposition during data collection was
over 20%. The structures were solved by direct methods
(SHELXS-97) [27] and refined by the full-matrix least-squares
method against F2 using SHELXL-97 [28]. All non-hydrogen
atoms were located by difference Fourier synthesis and
refined anisotropically. The positions of H atoms attached
to cyclopentadienyl C(1) atom in 1 and 2 were refined
freely [Uiso(H) = 1.2 · Ueq(C)]. The remaining H atoms
were positioned geometrically and refined using a riding
model. The methyl groups bonded to the Al atom in 1
and in the backbone of chelate in 4 (C(3) and C(7) atoms)
were modeled as idealized disordered rotating groups with
refined occupancy factors. The crystal data and structure
refinement details are presented in Table 4. The geometrical
parameters for structural analysis were calculated using the
PLATON package [22].
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4. Supplementary material
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Nuculai, R. Herbst-Irmer, Angew. Chem., Int. Ed. 43 (2004) 2142.
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Schmidt, M. Noltemeyer, Organometallics 24 (2005) 380.
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(2006) 949.
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5665.
[17] (a) A. Cebulski, Ph.D. Thesis, Warsaw University of Technology,
2003;
CCDC 636341, 636342 and 636343 contain the supple-
mentary crystallographic data for 1, 2 and 4. These data
tallographic Data Centre, 12 Union Road, Cambridge
CB2 1EZ, UK; fax: (+44) 1223-336-033; or e-mail:
deposit@ ccdc.cam.ac.uk.
´
(b) K. Leszczynska, Ph.D. Thesis, Warsaw University of Technology,
2006.
Acknowledgements
[18] M.N. Burnett, C.K. Johnson, ORTEPIII, Report ORLN-6895, Oak
Ridge National Laboratory, Oak Ridge TN, 1996.
[19] C.E. Radzewich, M.P. Coles, R.F. Jordan, J. Am. Chem. Soc. 120
(1998) 9384.
[20] M. Stender, B.E. Eichler, N.J. Hardman, P.P. Power, J. Prust, M.
Noltemeyer, H.W. Roesky, Inorg. Chem. 40 (2001) 2794.
[21] S. Singh, H.-J. Ahn, A. Stasch, V. Jancik, H.W. Roesky, A. Pal, M.
Biadene, R. Herbst-Irmer, M. Noltemeyer, H.-G. Schmidt, Inorg.
Chem. 45 (2006) 1853.
The authors thank the Polish State Committee for Sci-
entific Research (Grant no. 3 T08E 026 27), and Warsaw
University of Technology for financial support of this
project.
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