Pyridine-2-sulfonates as versatile ligands for the synthesis of novel coordinative and hydrogen-bonded supramolecules
Pyridine-2-sulfonates as versatile ligands for the synthesis of novel coordinative and hydrogen-bonded supramolecules
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DOI：
10.1002/ejic.200300251
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发表时间：
2004-01-23
影响因子：
2.3
通讯作者：
Isobe, K
中科院分区：
文献类型：
--
作者：
Lobana, TS;Kinoshita, I;Isobe, K
3-甲基吡啶-2-磺酸 (3-mpSO(3)H) 与 Cu-II 以及 4-甲基吡啶-2-磺酸 (4-mpSO(3)H) 与 Zn-II 在水中反应形成一维无限配位聚合物 [Cu(3-mpSO(3))(2)](n) (1) 和 [Zn(4-mpSO(3))(2)](n) (2)。同样，化学计量的二维氢键超分子，[ML2(H2O)(2)] [L = 3-甲基吡啶-2-磺酸盐 (3-mpSO(3))，M = Mn (3)、Fe (4)、Co (5)、Zn (6)； L = 5-甲基吡啶-2-磺酸盐 (5-mpSO(3))，M = Zn (7)； L = 2-磺酸吡啶 (PySO3)，M = Zn (8)； L = 4-mpSO(3)，M = Co (9)]，[Ni(3-mpSO(3))(2)(H2O)(2)](H2O)-H-。 (10) 和一维氢键网络 [VO(acac)(3-mpSO(3))(H2O)] (11) (acac = 乙酰丙酮)已制备。 1和2中的配体是三齿[N,O-螯合-Cu-mu-O-桥接]，而在所有其他化合物中，N,O-螯合和不配位的0原子参与分子间氢键，导致氢键网络的形成。每个金属中心周围的几何形状是八面体 (9) 或扭曲八面体 (1-8、10 和 11)。化合物 3-8 和 10 显示出新颖的 pi-pi 堆积相互作用，而 9 和 11 未显示出这种相互作用。3 和 11 的磁性行为表明缺乏任何分子间磁性相互作用。吡啶环中取代基的位置和 Jahn-Teller 效应 (Cu-II) 似乎决定了堆积相互作用以及配体密度，以形成配位和氢键超分子。 (C) Wiley-VCH Verlag GmbH & Co. KGaA，69451 魏因海姆，德国，2004 年。
The reactions of 3-methylpyridine-2-sulfonic acid (3-mpSO(3)H) with Cu-II and 4-methylpyridine-2-sulfonic acid (4-mpSO(3)H) with Zn-II in water formed one-dimensional infinite coordination polymers, [Cu(3-mpSO(3))(2)](n) (1) and [Zn(4-mpSO(3))(2)](n) (2). Similarly, two-dimensional hydrogen-bonded supramolecules of stoichiometries, [ML2(H2O)(2)] [L = 3-methylpyridine-2-sulfonate (3-mpSO(3)), M = Mn (3), Fe (4), Co (5), Zn (6); L = 5-methylpyridine-2-sulfonate (5-mpSO(3)), M = Zn (7); L = pyridine-2-sulfonate (PySO3), M = Zn (8); L = 4-mpSO(3), M = Co (9)], [Ni(3-mpSO(3))(2)(H2O)(2)](H2O)-H-. (10) and the one-dimensional hydrogen-bonded network [VO(acac)(3-mpSO(3))(H2O)] (11) (acac = acetylacetonate) have been prepared. The ligands are tridentate [N,O-chelating-Cu-mu-O-bridging] in 1 and 2, while in all the other compounds the N,O-chelating and uncoordinated 0 atoms are engaged in intermolecular hydrogen bonding leading to the formation of hydrogen-bonded networks. The geometry around each metal center is octahedral (9) or distorted octahedral (1-8, 10 and 11). The compounds 3-8, and 10 showed novel pi-pi stacking interactions, not shown by 9 and 11. The magnetic behavior of 3 and 11 indicates lack of any intermolecular magnetic interactions. The position of the substituents in the pyridyl ring and Jahn-Teller effect (Cu-II) appear to determine the stacking interactions as well as the density of ligands with regard to the formation of coordinative and hydrogen-bonded supramolecules. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.