Hydrothermal syntheses, crystal structures, and characteristics of a series of Cd-btx coordination polymers (btx = 1,4-Bis(triazol-1-ylmethyl)benzene).
Hydrothermal syntheses, crystal structures, and characteristics of a series of Cd-btx coordination polymers (btx = 1,4-Bis(triazol-1-ylmethyl)benzene).
复制标题
DOI：
10.1021/ic0354670
复制
发表时间：
2004-05
影响因子：
4.6
通讯作者：
Xiang-Ru Meng;Yinglin Song;H. Hou;Huayun Han;Bo Xiao;Yaoting Fan;Yu Zhu
中科院分区：
文献类型：
--
作者：
Xiang-Ru Meng;Yinglin Song;H. Hou;Huayun Han;Bo Xiao;Yaoting Fan;Yu Zhu
四种新型镉-BTX [Cd（btx）（2）（NO（3））（2）]（n）（1），[Cd（btx）（2）Cl（2）]（n）（2），[Cd（btx）（SO（4））（H（2）O）（2）]（n）（3），和[Cd（btx）（S（2）O（7））（H（2）O）]（n）（4）进行了表征。1和2都具有二维菱形网格结构，3具有二维矩形网格结构，4显示三维框架，其由btx桥接平行层形成。据作者所知，聚合物4是第一个Cd（II）聚合物，其中Cd（II）离子是八配位的六方双嘧啶几何形状。此外，我们还研究了温度对btx和CdSO（4）水热反应体系的影响，发现在不同的温度下可以得到不同的产物。此外，聚合物3具有非常强的三阶NLO吸收效应，α（2）值为1.15 × 10（-）（9）m W（-1）。聚合物2-4在室温下在固态下显示出强荧光发射。四种聚合物的DTA和TGA结果与晶体结构一致。
Four novel cadmium-btx (btx = 1,4-bis(triazol-1-ylmethyl)benzene) coordination polymers [Cd(btx)(2)(NO(3))(2)](n)(1), [Cd(btx)(2)Cl(2)](n)(2), [Cd(btx)(SO(4))(H(2)O)(2)](n)(3), and [Cd(btx)(S(2)O(7))(H(2)O)](n)(4) have been prepared by hydrothermal reaction (140 or 180 degrees C) and characterized. Both 1 and 2 have two-dimensional rhombohedral grid structures, 3 possesses a two-dimensional rectangular grid structure, and 4 displays a three-dimensional framework, which is formed by btx bridging parallel layers. To the author's best knowledge, polymer 4 is the first Cd(II) polymer in which the Cd(II) ion is eight-coordinated in a hexagonal bipyrimidal geometry. In addition, we studied the effects of temperature on the hydrothermal reaction system of btx and CdSO(4) and found that different products can be obtained at different temperatures. Furthermore, polymer 3 possesses a very strong third-order NLO absorptive effect with an alpha(2) value of 1.15 x 10(-)(9) m W(-1). Polymers 2-4 display strong fluorescent emissions in the solid state at room temperature. The DTA and TGA results of the four polymers are in agreement with the crystal structures.