8-Dioxane ferra(III) bis(dicarbollide): A paramagnetic functional molecule as versatile building block for introduction of a Fe(III) centre into organic molecules

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• 作者：Jarom&#xed ; r Pleš ; ek ; Bohum&#xed ; r Grü ; ner ; Jan Mach&#xe1 ; č ; ek ; Ivana C&#xed ; sař ; ov&#xe1 ; ; Josef Č ; &#xe1 ; slavský
• 关键词：Boranes ; Carboranes ; Dicarbollides ; X-ray diffraction ; NMR
• 刊名：Journal of Organometallic Chemistry
• 出版年：2007
• 出版时间：15 October 2007
• 年：2007
• 卷：692
• 期：22
• 页码：4801-4804
• 全文大小：373 K

文摘

The synthesis of a new, paramagnetic closo-[(8-(-CH₂CH₂O)₂-1,2-C₂B₉H₁₀)(1′,2′-C₂B₉H₁₁)-3,3′-Fe]⁰ (3) is reported. This compound can serve as a versatile building block for construction of both anionic and zwitterionic derivatives, as exemplified by the synthesis of a series of compounds of general formula closo-[(8-X-(CH₂CH₂O)₂-1,2-C₂B₉H₁₀)(1′,2′-C₂B₉H₁₁)-3,3′-Fe], bearing organic end groups (X = NC₅H₅ (4), (C₆H₅)₃P (5), OH (6), and 2-O(1-CH₃O–C₆H₄) (7)) attached to the cluster by a diethyleneglycol spacer. Molecular structures of 3, 4, 5 and 7 were determined by single-crystal X-ray diffraction analysis and by the long-time neglected method of paramagnetic, high field NMR (¹H, ¹³C and ¹¹B) spectroscopy.