Synthesis of Au(II) fluoro complexes and their structure and magnetic properties
- Lawrence Berkeley Lab., CA (United States)
Gold dissolves at nearly 20{degree}C, with F{sub 2} in aHF acidified with SbF{sub 5}, to give a red solution from which orange crystals of Au{sup II}[SbF{sub 6}]C{sub 2} crystallize. Exhaustive fluorination results in total conversion of the gold to an insoluble crystalline red solid which is Au{sup II}[SbF{sub 6}]C{sub 2} Au{sup II}[C@Au{sup III}{sub 4}F]C{sub 2}. The crystal structures of these materials and their magnetic properties indicate that they are true AU(II) derivatives. This paper describes these properties and the attempts to prepare AuF{sub 2} by treatment with base in aHF, or by solvolysis, which have resulted in disproportionation to gold, and the mixed-valence fluoride Au{sup II}AU{sup III}{sub 2}F{sub 8}. 37 refs., 5 figs., 1 tab.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 460046
- Journal Information:
- Journal of the American Chemical Society, Vol. 119, Issue 5; Other Information: PBD: 5 Feb 1997
- Country of Publication:
- United States
- Language:
- English
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