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A Novel Inorganic‐Organic Composite Constructed from Cobalt(II)‐Monosubstituted Polyoxometalates and Poly(amidoamine)‐NH~2~ Dendrimers by Xiao-Feng Zhang; Shen Lin; Geng-Geng Luo; Chun-Lian Liu is a Chemistry article available to read on EtoBox.

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An inorganic-organic composite was prepared by poly(amidoamine) (PAMAM) dendrimer reacting with cobalt(II)-monosubstituted polyoxometalates Na 5 Co II (H 2 O)PW 11 O 39 (PW 11 Co) in an aqueous solution. The hybrid composite PW 11 Co/PAMAM was characterized by FT-IR, UV-Vis diffuse reflectance spectra (DR-UV-Vis), XPS, XRD and TG/DTA, indicating that the PW 11 Co was chemically anchored to PAMAM. The morphologies of the title composite were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The catalytic activity was evaluated by oxidation of isobutyraldehyde (IBA) to isobutyric acid (IBAc) in MeCN under mild conditions (20 °C, ambient pressure), showing that the title compound is a more effective and recoverable catalyst than corresponding PW 11 Co.

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Author

Xiao-Feng Zhang; Shen Lin; Geng-Geng Luo; Chun-Lian Liu

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Science Press; Wiley (ISSN 0256-7660)

Published

2007

Language

EN

Field

Chemistry (Physical Sciences)