Synthesis and structural characterisation of a Co(II) coordination polymer incorporating a novel dicarboxy-Tr枚gers base/bis-pyrazole mixed ligand system

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• 作者：Chris S. Hawes^a ; Christopher M. Fitchett^a ; Stuart R. Batten^b ; Paul E. Kruger^a ; ^{paul.kruger@canterbury.ac.nz}
• 关键词：Coordination polymer ; Tr&ouml ; ger&rsquo ; s base ; Crystal engineering ; Supramolecular chemistry ; Pyrazole ; MOF
• 刊名：Inorganica Chimica Acta
• 出版年：2012
• 期刊代码：40_00201693
• 类别：ch
• 出版时间：1 July, 2012
• 卷：389
• 期：Complete
• 页码：112-117
• 文件大小：1003 K

摘要

A cobalt(II) coordination polymer, [Co(L1)(H₂L2)]路2.5H₂O, 1, has been prepared via the hydrothermal reaction of cobalt(II) chloride with the novel dicarboxy-Tr枚ger鈥檚 base ligand 2,8-dicarboxy-6H,12H-5,11-methano-dibenzo[b,f][1,5]diazocine, H₂L1, and the bis-pyrazole ligand 4,4鈥?methylenebis-(3,5-dimethylpyrazole), H₂L2. The structure of 1 contains 2D (4,4) networks showing 2D 鈫?#xA0;3D parallel interpenetration, whereby adjacent 2D sheets interlock through the apertures defined by the cleft-like Tr枚ger鈥檚 base ligand, to realise an overall 3D entanglement. The interlocking also forms one-dimensional solvent filled channels which are easily disturbed on drying resulting in framework collapse. The crystal structure of H₂L1 is also reported, and represents a rare example of homochiral hydrogen bonded [6,4] dia networks interpenetrated by their enantiomeric partner frameworks.