Synthesis, Structure, and Spectroelectrochemistry of Ferrocenyl鈥揗eldrum鈥檚 Acid Donor鈥揂cceptor Systems

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• 作者：Konrad Kowalski ; 艁ukasz Szczupak ; Joanna Skiba ; Obadah S. Abdel-Rahman ; Rainer F. Winter ; Rafa艂 Czerwieniec ; Bruno Therrien
• 刊名：Organometallics
• 出版年：2014
• 出版时间：September 22, 2014
• 年：2014
• 卷：33
• 期：18
• 页码：4697-4705
• 全文大小：528K
• ISSN：1520-6041

文摘

The synthesis of two new donor鈥揳cceptor ferrocenyl derivatives with Meldrum鈥檚 acid based nonplanar acceptor substituents is presented. Both compounds are obtained in high yields in a simple reaction protocol under mild conditions using either 1-acetyl- or 1,1鈥?diacetylferrocene and Meldrum鈥檚 acid. Both products have been characterized spectroscopically, by single-crystal X-ray structure analysis, by electrochemical and UV/vis/IR spectroelectrochemical measurements, and by (TD)-DFT calculations. The spectroelectrochemical measurements disclose that the 2,2-dimethyl-1,3-dioxane-4,6-dione moiety is a moderately strong electron acceptor.