3-Picoline-N-oxide complexes of rare-earth bromides |
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Authors: | Puvvadi Venkata Sivapullaiah Prof. Dr. Sundaresa Soundararajan |
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Affiliation: | (1) Department of Inorganic and Physical Chemistry, Indian Institute of Science, IND-560012 Bangalore, India |
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Abstract: | 3-Picoline-N-oxide (3-PicNO) complexes of rare-earth bromides of the formulaMBr3(3-PicNO)8–n·nH2O wheren=0 forM=La, Pr, Nd, Sm Tb or Y andn=2 forM=Ho or Yb have been prepared. Infrared and proton NMR studies indicate that the coordination of the ligand is through oxygen. Conductance data in acetonitrile suggest that two bromide ions are coordinated to the metal ion. Proton NMR studies suggest a bicapped dodecahedral arrangement of the ligands around the metal ion in solution for Pr(III), Nd(III) and Tb(III) complexes. |
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