´
19 A. Fernandez, P. Urıa, J. J. Fernandez, M. Lopez-Torres, A.
Suarez, D. Vazquez-Garcıa, M. T. Pereira and J. M. Vila, J. Orga-
´
´
´
1093 parameters), with allowance for the thermal anisotropy
of all non-hydrogen atoms. The C(10) and C(11) carbon atoms
of one THF ring were found to be disordered over two posi-
tions [C(10), C(10a) and C(11), C(11a)]. The occupancies of
the two pairs of positions were tied to give an overall value
of 1.0 and then refined, giving values of approximately 0.5
for each component. Other atoms of the THF rings showed
less than ideal thermal parameters. Disorder was also found
in the Cl(8), Cl(9), Cl(10), C(5s) and Cl(19) atoms of two
chloroform solvent molecules. The refinement was carried
out taking into account the minor components of the disorder.
Minimum and maximum final electron density ꢀ1.323 and
´
´
´
nomet. Chem., 2001, 620, 8.
20 J. M. Vila, M. Gayoso, M. T. Pereira, M. Camino-Rodriguez and
J. M. Ortigueira, J. Organomet. Chem., 1992, 426, 267.
21 J. M. Vila, M. Gayoso, M. T. Pereira, M. Camino-Rodriguez,
´
J. M. Ortigueira, J. J. Fernandez and M. Lopez-Torres, J. Orga-
nomet. Chem., 1994, 479, 37.
´
´
22 J. M. Vila, M. T. Pereira, J. M. Ortigueira, J. J. Fernandez, A.
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´
1999, 18, 5484.
23 (a) K. Selvakumar and S. Vancheesan, Polyhedron, 1995, 14, 2091;
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1.511e Aꢀ3. The structure solution and refinement were carried
˚
out using the program package SHELX-97.46
suppdata/nj/b1/b111671a/ for crystallographic data in CIF
or other electronic format.
24 (a) R. F. Carina, A. F. Williams and G. Bernardinelli, J. Organo-
met. Chem., 1997, 548, 45; (b) I. G. Phillips and P. J. Steel, J.
Organomet. Chem., 1991, 410, 247; (c) D. P. Lydon and J. P.
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25 S. Chakladar, P. Paul, K. Venkatsubramanian and K. Nag, J.
Chem. Soc., Dalton Trans., 1991, 2669.
Acknowledgements
´
We thank the Ministerio de Educacion y Cultura (Proyecto
PB98-0638-C02-01/02), the Xunta de Galicia (Proyecto
PGIDT99PXI20907B) and the Universidad de La Corun˜a
for financial support.
26 S. Chakladar, P. Paul, A. K. Mukherjee, S. K. Dutta, K. K.
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28 J. Vicente, J. A. Abad, B. Rink, F. S. Hernandez and M. C.
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