New types of 3D organically templated Zn2+/Cd2+-Cu+ mixed metal sulfites.
New types of 3D organically templated Zn2+/Cd2+-Cu+ mixed metal sulfites.
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DOI：
10.1021/ic900487j
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发表时间：
2009-06
影响因子：
4.6
通讯作者：
Pei‐Xin Li;Chunli Hu;Q. Lin;Na Zhao;J. Mao
中科院分区：
文献类型：
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作者：
Pei‐Xin Li;Chunli Hu;Q. Lin;Na Zhao;J. Mao
在水热条件下合成了两种新型有机模板亚硫酸盐[H（2）pip][NaZn（2）Cu（SO（3））（4）]（1）和[H（2）pip][CdCu（4）（SO（3））（4）]（2）（pip =哌嗪），并对其结构进行了表征.这两种化合物都具有新颖的三维混合金属无机骨架，有机模板分子占据无机骨架的隧道。化合物1具有平行于ac平面的二维Zn（2）Cu（SO（3））（4）（3-）层，其中Zn（SO（3））（2）（2-）阴离子的一维链沿c轴沿着与Cu（+）离子通过Cu-S键相互连接。相邻的Zn（2）Cu（SO（3））（4）（3-）层进一步通过Na（+）离子经由Na-O-S键桥接成三维网络而互连，形成沿着a轴的一维隧道，其被双质子化的哌嗪阳离子占据。化合物2是一种新型的三维无机骨架CdCu（4）（SO（3））（4）（2-），具有基于Cu（4）（SO（3））（4）（4-）立方烷簇的二维层。簇层进一步互连的镉（II）离子，形成一维隧道的八元环沿着的c轴哌嗪模板阳离子位于。发光性能的测量以及基于密度泛函理论方法的能带结构计算也进行了。
Two types of new organically templated mixed-metal sulfites, namely, [H(2)pip][NaZn(2)Cu(SO(3))(4)] (1) and [H(2)pip][CdCu(4)(SO(3))(4)] (2) (pip = piperazine), have been synthesized under hydrothermal conditions and structurally characterized. Both compounds exhibit a novel 3D mixed-metal inorganic framework with organic template molecules occupying the tunnels of the inorganic skeleton. Compound 1 features a 2D Zn(2)Cu(SO(3))(4)(3-) layer parallel to the ac plane in which the 1D chains of Zn(SO(3))(2)(2-) anions along the c axis are interconnected with the Cu(+) ions via Cu-S bonds. Neighboring Zn(2)Cu(SO(3))(4)(3-) layers are further interconnected by bridging Na(+) ions via Na-O-S bonds into a 3D network, forming 1D tunnels along the a axis which are occupied by the doubly protonated piperazine cations. Compounds 2 features a novel 3D inorganic framework of CdCu(4)(SO(3))(4)(2-) with 2D layers based on Cu(4)(SO(3))(4)(4-) cubanelike clusters. The cluster layers are further interconnected by Cd(II) ions, forming 1D tunnels of eight-membered rings along the c axis in which the piperazine template cations are located. Luminescent property measurements as well as band structure calculations based on density functional theory methods were also made.