Synthesis, spectral, X-ray diffraction and thermal studies of new Zn^II-pyrazine coordination polymers

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• 作者：Farzin Mar ; i
• 关键词：Coordination polymers ; 尾-Diketone ; Pyrazine ; Zinc(II)
• 刊名：Journal of Molecular Structure
• 出版年：5 February, 2014
• 年：2014
• 卷：1059
• 期：Complete
• 页码：75-80
• 全文大小：1398 K

文摘

Two new zinc(II) coordination polymers with a 尾-diketone and N-donor ancillary ligands, [Zn(pyz)(ttfa)₂]_n (1) and [Zn(pyz)(btfa)₂]_n (2), (Httfa = 2-thenoyltrifluoroacetone, Hbtfa = benzoyltrifluoroacetone and pyz = pyrazine), have been prepared and characterized by elemental analysis, IR, ¹H NMR and ¹³C NMR spectroscopy, and studied by thermal gravimetric analysis as well as single crystal X-ray diffraction. The crystal and molecular structures of 1 and 2 have been solved by X-ray diffraction and they turned out to be one-dimensional polymers with linear dispositions of the metal atoms. These one-dimensional polymers are further connected to form a 3D supramolecular network by CH鈰€ (only in 1), CH鈰疐, 蟺-蟺 and interesting H鈰疕 (only in 2) interactions.