A 30-Membered Nonanuclear Cobalt(II) Macrocycle Containing Phosphonate-Bridged Trinuclear Subunits

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• 作者：Dipankar Sahoo ; Ramakirushnan Suriyanarayanan ; Vadapalli Chandrasekhar
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：June 4, 2014
• 年：2014
• 卷：14
• 期：6
• 页码：2725-2728
• 全文大小：309K
• 年卷期：v.14,no.6(June 4, 2014)
• ISSN：1528-7505

文摘

The reaction of Co(ClO₄)₂路6H₂O with (trichloromethyl)phosphonic acid and 3,5-dimethyl-1H-pyrazole in a 3:1:6 ratio in the presence of triethylamine afforded [Co₉(3,5-DMPz)₁₂(3,5-DMPzH)₆(Cl₃CPO₃)₃](toluene)₇ (1). The latter contains three trinuclear (Co₃) subunits which are linked to each other by three bridging phosphonate ligands affording a 30-membered macrocycle. 1 contains an equilateral triangle comprising the phosphorus atoms of the bridging phosphonate groups. In solution, 1 breaks down into the trinuclear subunits as detected by electrospray ionization mass spectrometry.