A series of new manganese(II) sulfonate-arsonates with 2D layer, 1D chain, and 0D clusters structures.
A series of new manganese(II) sulfonate-arsonates with 2D layer, 1D chain, and 0D clusters structures.
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DOI：
10.1021/ic100103k
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发表时间：
2010-03
影响因子：
4.6
通讯作者：
Fei-Yan Yi;Q. Lin;Tianhua Zhou;J. Mao
中科院分区：
文献类型：
--
作者：
Fei-Yan Yi;Q. Lin;Tianhua Zhou;J. Mao
锰(II)盐与邻磺基苯胂酸(o-HO(3)S-C(6)H(4)-AsO(3)H(2), H(3)L)的水热反应得到具有层状结构的Mn(3)(L)(2)(H(2)O)(3).H(2)O (1)。当1,10-菲咯啉(phen)、2,2'-联吡啶(bipy)和2,2':6',2''-三联吡啶(terpy)用作辅助螯合配体时,一系列具有低维结构的混合配体磺酸锰(II)胂酸盐,即 [Mn(HL)(phen)(2)](2).8.5H(2)O (2)、Mn(HL)(phen)(2)(H(2)O).2H(2)O (3)、[Mn(HL)(bipy)(2)][Mn(H(2)L)(bipy)(2)](ClO(4)).3H(2)O (4)、 [Mn(HL)(phen)][Mn(HL)(phen)(H(2)O)] (5), [Mn(2)(HL)(phen)(4)(H(2)O)](ClO(4))(2).4H(2)O (6), [Mn(2)(HL)(phen)(4)(H(2)O)](ClO(4))(2).H(2)O (7)、Mn(2)(HL)(2)(bipy)(3)(H(2)O).H(2)O (8)、[Mn(HL)(terpy)](2)(9)、Mn(7)(OH)(2)(L)(4)(phen)(8).10H(2)O.phen (10)，和 得到Mn(HL)(bipy)(H(2)O)·2H(2)O(11)。 2-4 是单核（4 包含两个不同的单核簇单元），而 5-9 具有三种类型的孤立双核簇单元，其中两个 Mn(2+) 离子通过一个或两个磺酸根-胂酸根配体桥接。图10展示了一个有趣的七核簇，其中Mn(2+)中心由胂酸盐、磺酸盐基团和羟基阴离子桥接。图11的特征在于一维(1D)链，其中两个相邻的Mn(2+)中心通过磺酸盐-胂酸盐配体的胂酸盐基团桥接。磁性测量表明，1 表现出前所未有的自旋拓扑结构，表现为同旋亚铁磁体，而 2-4 本质上是顺磁性的。 5-9和11具有弱反铁磁性。
Hydrothermal reactions of manganese(II) salts with o-sulfophenylarsonic acid (o-HO(3)S-C(6)H(4)-AsO(3)H(2), H(3)L) afforded Mn(3)(L)(2)(H(2)O)(3).H(2)O (1) with a layered structure. When 1,10-phenanthroline (phen), 2,2'-bipyridine (bipy), and 2,2':6',2''-terpyridine (terpy) were used as auxiliary chelating ligands, a series of mixed-ligand manganese(II) sulfonate-arsonates with lower dimensional structures, namely, [Mn(HL)(phen)(2)](2).8.5H(2)O (2), Mn(HL)(phen)(2)(H(2)O).2H(2)O (3), [Mn(HL)(bipy)(2)][Mn(H(2)L)(bipy)(2)](ClO(4)).3H(2)O (4), [Mn(HL)(phen)][Mn(HL)(phen)(H(2)O)] (5), [Mn(2)(HL)(phen)(4)(H(2)O)](ClO(4))(2).4H(2)O (6), [Mn(2)(HL)(phen)(4)(H(2)O)](ClO(4))(2).H(2)O (7), Mn(2)(HL)(2)(bipy)(3)(H(2)O).H(2)O (8), [Mn(HL)(terpy)](2) (9), Mn(7)(OH)(2)(L)(4)(phen)(8).10H(2)O.phen (10), and Mn(HL)(bipy)(H(2)O).2H(2)O (11) have been obtained. 2-4 are mononuclear (4 contains two different mononuclear cluster units) whereas 5-9 feature three types of isolated dinuclear cluster units in which the two Mn(2+) ions are bridged by one or two sulfonate-arsonate ligands. 10 exhibits an interesting heptanuclear cluster in which the Mn(2+) centers are bridged by arsonate, sulfonate groups and hydroxyl anions. 11 features a one-dimensional (1D) chain in which two neighboring Mn(2+) centers are bridged by an arsonate group of a sulfonate-arsonate ligand. Magnetic measurements indicate that 1 exhibits an unprecedented spin topology and behaves as a homospin ferrimagnet whereas 2-4 are essentially paramagnetic. 5-9 and 11 are weakly antiferromagnetic.