Lanthanum - 57La: 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 lanthanum. For each compound, a formal oxidation number for lanthanum 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.
In compounds of lanthanum (where known), the most common oxidation numbers of lanthanum are: 3.
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.
- Lanthanum dihydride: LaH2
- Lanthanum trihydride: LaH3
Fluorides
- Lanthanum trifluoride: LaF3
Chlorides
- Lanthanum trichloride trihydrate: LaCl3.3H2O
- Lanthanum trichloride: LaCl3
Bromides
- Lanthanum tribromide: LaBr3
Iodides
- Lanthanum triiodide: LaI3
Oxides
- Dilanthanum trioxide: La2O3
Sulfides
- Lanthanum sulphide: LaS
- Dilanthanum trisulphide: La2S3
Selenides
- Lanthanum selenide: LaSe
Tellurides
- Lanthanum telluride: LaTe
Nitrides
- none listed
Carbonyls
- none listed
Complexes
- Lanthanum trinitrate hexahydrate: La(NO3)3.6H2O
- Dilanthanum trisulphate nonahydrate: La2(SO4)3.9H2O
- Di-μ-chloro-bis(heptaaqualanthanum) tetrachloride: LaCl3.7H2O