INVESTIGATIONS ON THE CO-ORDINATIVE POWER OF URANYL. PART III. INFRARED SPECTRA OF SOME COMPLEXES WITH /cap beta/-DIKETONES
Infrared absorption spectra have been obtained for a number of uranyl complexes with acetylacetone, benzoylacetone, and dibenzoylmethane, crystallized with water, ammonia, or pyridine and in the anhydrous state. Despite the complexity of the spectra the two nu t and nu /sub 3/ frequencies assigned to the bent form of the uranyl group have been observed for some of such compounds. In the anhydrous complexes of benzoylacetone and dibenzoylmethane such frequencies are shifted and altered in intensity probably owing to the modified crystal field of the surroundings'' of uranyl. The frequencies and the features of the absorption bands of water indicate different types of hydrogen bonding and confirm the existence of co-ordinate bonds between uranium and water molecules in the hydrated complexes. The H--N stretching vibrations of the ammonia appear to be shifted to lower frequencies, a feature regarded as characteristic of nitrogen-to-metal bonds. (auth)
- Research Organization:
- The University, Palermo, Italy
- NSA Number:
- NSA-13-009748
- OSTI ID:
- 4287544
- Journal Information:
- Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc., Journal Name: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.; ISSN JCSOA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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