Hafnium: compounds information
This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of hafnium. For each compound, a formal oxidation number for hafnium is given, but the usefulness of this number is limited for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only. The term hydride is used in a generic sense to indicate compounds of the type MxHy and not necessarily to indicate that any compounds listed behave chemically as hydrides. In compounds of hafnium (where known), the most common oxidation numbers of hafnium are: 4.
Hydrides
The term hydride is used to indicate compounds of the type MxHy and not necessarily to indicate that any compounds listed behave as hydrides chemically.
- Hafnium dihydride: HfH2
Fluorides
- Hafnium tetrafluoride: HfF4
Chlorides
- Hafnium tetrachloride: HfCl4
Bromides
- none listed
Iodides
- Hafnium triodide: HfI3
- Hafnium tetraiodide: HfI4
Oxides
- Hafnium dioxide: HfO2
Sulfides
- Hafnium disulphide: HfS2
Selenides
- Hafnium diselenide: HfSe2
Tellurides
- none listed
Nitrides
- Hafnium nitride: HfN
Carbonyls
- Hafnium heptacarbonyl: Hf(CO)7
Complexes
- none listed
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