Structure of (η4-1,5-cyclooctadiene)(1-ferrocenyl-1,3-butanedionato-κ2O,O')rhodium(I)

Abstract

The unit-cell parameters were determined from a leastsquares refinement of 25 reflections with 18 < 0 < 20 °. Data were corrected for Lorentz and polarization effects, as well as for absorption (North, Phillips & Mathews, 1968) with min. and max. correction factors of 0.970 and 0.999, respectively. Three control reflections were measured every 3600 s of X-ray exposure time and varied from the initial value by less than 2%. Intensity data were corrected for this decay. The intensities of 11 384 reflections in the index range0<h<16, -18<k<18, -21<l<21 with 0.07 < sin0/A < 0.7 A-1, were measured. Of 10 106 unique reflections (Rint =' 0.0204), 8291 were considered observed with I> 30-(/). The structure was solved by the heavy-atom method using SHELX8,6 (Sheldrick, 1990) and was subjected to least-squares refinement on F with 476 positional and anisotropic thermal parameters for all the non-H atoms using SHELX76 (Sheldrick, 1976). The H-atom positions were calculated by assuming C--H = 1.08/(, and refined with an overall temperature factor. Neutral-atom scattering factors (Cromer & Mann, 1968) and anomalous-dispersion corrections