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Chem Commun (Camb). 2004 Dec 7;(23):2742-3. Epub 2004 Oct 15.

A first oxalamidino complex of samarium via reduction-coupling of carbodiimine: synthesis and molecular structure of [eta4-C2(NR)4][(MeC5H4)2Sm(HMPA)]2.2THF (R = Pr i, Cy).

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  • 1Key Laboratory of Organic Synthesis, Jiangsu Province, Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215-006, People's Republic of China.


Treatment of the THF solution of (MeC5H4)2Sm(THF) with an equivalent of carbodiimine [RN=C=NR](R = Pr(i) or Cy; Cy = cyclohexyl) in the presence of an equivalent of hexamethylphosphoric triamide (HMPA) at room temperature gives, via a reduction-coupling reaction of carbodiimine, the corresponding bimetallic oxalamidino complex of samarium [eta4-C2(NR)4][(MeC5H4)2Sm(HMPA)]2.2THF.

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