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基于六氰根构筑单元[M(Ⅱ)(CN)_6]~(4-)与[Mn(Ⅲ)(salen)]+模块反应合成了2个新型酚氧和氰根混合桥联的MⅡ-Mn(Ⅲ)配合物{[Mn(Ⅲ)(salen)]_4[Mn(Ⅲ)(salen)(H_2O)]_2[MⅡ(CN)_6]}(Cl O_4)2·2H_2O(M=Ru(1),Os(2),salen2-=双水杨酰胺乙基负离子)。单晶衍射结果表明:它们是结构类似的二维化合物,其中氰根桥联的七核[Mn(Ⅲ)6MⅡ]2+单元进一步通过双酚氧桥相互连接构成二维层状结构。磁性研究表明:2个化合物通过酚氧桥均呈现反常的反铁磁耦合,基于自旋哈密顿算符H=-2JMnMnSMn1SMn2拟合得到它们的磁耦合常数分别是J=-0.340 cm~(-1)(1)和-0.561 cm~(-1)(2)。
Based on the reaction of [M (Ⅱ) (CN) _6] ~ (4-) with [Mn (Ⅲ) Mn (Ⅲ) (salen)] _4 [Mn (Ⅲ) (salen) (H_2O)] _2 [MⅡ (CN) _6]} (Cl O_4) 2 · 2H_2O (M = Ru 1), Os (2), salen2- = bis-salicylamide ethyl anion). The results of single crystal diffraction show that they are two-dimensional compounds with similar structure, in which the hexanuclear [Mn (Ⅲ) 6MⅡ] 2+ units bridged by cyanide groups are further connected to each other through the bisphenol oxygen bridge to form a two-dimensional layered structure. Magnetic studies show that the two compounds exhibit an anomalous antiferromagnetic coupling through the phenolic oxygen bridges, and their magnetic coupling constants based on the spin Hamiltonian H = -2JMnMnSMn1SMn2 are J = -0.340 cm -1 ) (1) and -0.561 cm -1 (2).