Self-Assembled Two-Dimensional Water-Soluble Dipicolinate Cu/Na Coordination Polymer: Structural Features and Catalytic Activity for the Mild Peroxidative Oxidation of Cycloalkanes in Acid-Free Medium
✍ Scribed by Marina V. Kirillova; Alexander M. Kirillov; M. Fátima C. Guedes da Silva; Armando J. L. Pombeiro
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 523 KB
- Volume
- 2008
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Abstract
The new water‐soluble 2D Cu/Na coordination polymer [Cu(μ‐dipic)~2~{Na~2~(μ‐H~2~O)~4~}]~n~·2__n__H~2~O (1) has been synthesized by self‐assembly in aqueous medium from copper(II) nitrate, dipicolinic acid (H~2~dipic) and sodium hydroxide in the presence of triethanolamine. It has been characterized by IR spectroscopy, FAB^+^‐MS, elemental and single‐crystal X‐ray diffraction analyses, the latter featuring a layered 2D metal–organic structure that is extended to a 3D supramolecular assembly by extensive hydrogen bonding between adjacent layers and involving crystallization water molecules. Compound 1 has been shown to act as a catalyst precursor for the peroxidative oxidation of cyclohexane and cyclopentane to the corresponding cyclic ketones and alcohols by aqueous H~2~O~2~ in MeCN solution and in the absence of acid additives.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)