Lanthanoid-containing polyoxometalate nanocatalysts in the synthesis of bioactive isatin-based compounds.

ABSTRACT: Lanthanoid-containing polyoxometalates (Ln-POMs) have been developed as effective and robust catalysts due to their Lewis acid-base active sites including the oxygen-enriched surfaces of POM and the unique 4f. electron configuration of Ln. As an extension of our interest in Ln-POMs, a series of as-synthesized nanocatalysts K₁₅[Ln(BW₁₁O₃₉)₂] (Ln-B₂W₂₂, Ln = La, Ce, Nd, Sm, Gd, and Er) synthesized and fully characterized using different techniques. The Ln³⁺ ion with a big ionic radius was chosen as the Lewis acid center which is sandwiched by two mono-lacunary Keggin [BW₁₁O₃₉]^9- units to form Ln-containing sandwiched type cluster. Consequently, the catalytic activity of nanocatalysts

SUBMITTER: Daraie M 

PROVIDER: S-EPMC9283471 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature