Cerium(III) methanesulfonate

Cerium(III) methanesulfonate

Names
Other names Cerous methanesulfonate
Identifiers
CAS Number	73640-09-2 77998-20-0 (dihydrate)
ChemSpider	10000696
Jmol interactive 3D	Image
PubChem	11826045
InChI InChI=1S/3CH4O3S.Ce/c3*1-5(2,3)4;/h3*1H3,(H,2,3,4);/q;;;+3/p-3 Key: XPQVQIJYDXCEKC-UHFFFAOYSA-K InChI=1/3CH4O3S.Ce/c3*1-5(2,3)4;/h3*1H3,(H,2,3,4);/q;;;+3/p-3 Key: XPQVQIJYDXCEKC-DFZHHIFOAL
SMILES CS(=O)(=O)[O-].CS(=O)(=O)[O-].CS(=O)(=O)[O-].[Ce+3]
Properties
Chemical formula	Ce(CH3SO3)3
Molar mass	461.46 g/mol
Appearance	White crystalline solid[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Cerium(III) methanesulfonate is a white salt, usually found as the dihydrate with the formula Ce(CH₃SO₃)₃·2H₂O that precipitates from the neutralisation of cerium(III) carbonate with methanesulfonic acid, as first reported by L.B. Zinner in 1979.^[2][3] The crystals have a monoclinic polymeric structure were each methanesulfonate ion forms bonds with two cerium atoms, which present a coordination number of 8.^[4] The anhydrous salt is formed by water loss at 120 °C. Similar methanesulfonates can be prepared with other lanthanides.^[5] Cerium(III) methanesulfonate in solution is used as a precursor of electrogenerated cerium(IV), which is a strong oxidant and whose salts can be used in organic synthesis.^[6] The same principle of Ce(IV) electrogeneration is the fundamental reaction in the positive half-cell of the zinc–cerium battery.

See also

• Cerium
• Zinc–cerium battery

References

1. Cerium (III) Methanesulfonate in the e-EROS Encyclopedia of Reagents for Organic Synthesis, doi:10.1002/047084289X.rc044
2. Zinner, L.B. (1979). "Hydrated lanthanide methanesulfonates". Academia Brasileira de Ciências 30: 27.
3. Zinner, L.B. (1980). "Anhydrous lanthanide (III) methanesulfonates". Academia Brasileira de Ciências 52 (4): 715.
4. Aricó, E.M; Zinner, L.B.; Apostolidis, C.; Dornberger, E.; Kanellakopulos, B.; Rebizant, J. (1997). "Structures of the anhydrous Yb(III) and the hydrated Ce(III), Sm(III) and Tb(III) methanesulfonates". Journal of Alloys and Compounds 249: 111–115. doi:10.1016/s0925-8388(96)02756-9.
5. Aricó, E.M.; Zinner, L.B.; Kanellakopulos, B.; Dornberger, E.; Rebizante, J.; Apostolidis, C. (2001). "Structure and properties of hydrated La(III), Nd(III) and Er(III) methanesulfonates". Journal of Alloys and Compounds. 323-324: 39–44. doi:10.1016/s0925-8388(01)00975-6.
6. Kreh, Robert P. (1989). "Mediated electrochemical synthesis of aromatic aldehydes, ketones, and quinones using ceric methanesulfonate". The Journal of Organic Chemistry 54 (7): 1526–1531. doi:10.1021/jo00268a010.