| | 1 | Author
| K. Dallmann, W. Preetz | Requires cookie* | | | Title
|  | | | | Abstract
| Normalkoordinatenanalyse von [Os(acac)3] Synthesis, Crystal Structure, Vibrational Spectra, and Normal Coordinate Analysis o f [Os(acac)3] In the reaction o f K 2[O sCl6] with boiling water/acetylacetone (1:1) a mixture o f different chloro-acetylacetonato complexes is formed, from which [Os(acac)3] can be isolated by column chromatography with dichloromethane on silica gel. The crystal structure o f [Os(acac)3] (m o noclinic, space group P2,/c,a = 13.968(5), b = l . 517(5), c = 16.455(5) A ,ß = 98.939(5)°, Z = 4) has been determined by single crystal X-ray diffraction analysis. High resolution IR and Raman spectra were measured at low temperature (10 K). Based on the molecular parameters o f the X-ray structure determination a normal coordinate analysis has been performed and the normal modes o f vibration have been assigned. With a set o f 32 force constants, taking into account the intraligand vibrations, a good agreement between observed and calculated frequencies has been achieved. The valence force constants are fd(OsO) = 3.19 and fd(O C) = 6.74 mdyn/A. | | | |
Reference
| Z. Naturforsch. 53b, 232—238 (1998); eingegangen am 26. November 1997 | | | |
Published
| 1998 | | | |
Keywords
| Tris(acetylacetonato)osmium(III), Crystal Structure, IR Data, Raman Data, Normal Coordinate Analysis | | | |
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| default:Reihe_B/53/ZNB-1998-53b-0232.pdf | | | | Identifier
| ZNB-1998-53b-0232 | | | | Volume
| 53 | |
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