Carbamoyl methyl sulfoxide compounds of lanthanum (III) nitrate of the type [La(NO3)3L2] (where L = C6H5SOCH2CON(iC3H7)2, C6H5SOCH2CON(C4H9)2 C6H5SOCH2CON(iC4H9)2) have been synthesised and characterised. The structure of the compound [La(NO3)3(C6H5SOCH2CON(C4H9)2)2] shows that the C6H5SOCH2CON(C4H9)2 bonds through both the sulfoxo and carbamoyl oxygen atoms to the lanthanum(III) nitrate and acts as a bidentate chelating ligand.
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