N-substituted ethylcarbamate complexes of thorium(IV) and lanthanum(III) nitrates |
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| Authors: | G Casotto B Zarli G Faraglia L Sindellari |
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| Institution: | Istituto di Chimica Generale ed Inorganica dell''Università, Via Loredan 4, 35100 Padua, Italy |
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| Abstract: | N-substituted ethylcarbamates form with thorium nitrate the complexes Th(NO3)4·3RHNC(O)OC2H5 (where R = CH3, C2H5, C6H5(CH3)CH) and with lanthanum nitrate the complexes La(NO3)3· 2RR′NC(O)OC2H5·3H2O (where R = CH3, C2H5, C6H5(CH3)CH; R′ = H and R = CH3, C6H5; R′ = C2H5 or R = R′ = CH3). In addition the anhydrous La(NO3)3·3(C2H5)2NC(O)OC2H5 has been isolated. From the IR spectra it is deduced that the carbamates coordinate the metal through the carbonyl oxygen atom and that the nitrato groups act as chelated ligands. 1H nmr spectral data of the complexes are reported and discussed. |
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