Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels
Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels
复制标题
充满水的纳米通道 Ba(II)/Ag(I)/Cr(III)-草酸盐的合成、表征和 X 射线结构
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
J. Nenwa
中科院分区：
文献类型：
--
作者：
Clémence Eboga Tanke;B. N. Ndosiri;Y. Mbiangué;Gouet Bebga;J. Nenwa
在水溶液中合成了一种具有开放结构的钡（II）/银（I）/铬（III）草酸盐Ba0.5Ag2[Cr（C2 O 4）3]·5 H2O（1），并通过元素分析、振动光谱、电子光谱和单晶X射线结构测定对其进行了表征。化合物1以单斜空间群C2/c结晶，具有晶胞参数a = 18.179（3），B = 14.743（2），c = 12.278（2）A，β = 113.821（3），V = 3010.34（90）A3，Z = 8。该结构的特征在于阴离子[Cr（C2 O 4）3]3-单元的网络，其通过所述羧酸盐的O原子连接到Ba 2+和Ag+位点，形成具有平行于c轴的一维隔离纳米通道的三维配位聚合物，并封装氢键键合的客体水分子。通过纳米通道内的O-H···O桥接和库仑相互作用来巩固体结构。
A novel mixed barium(II)/silver(I)/chromium(III) oxalate salt, Ba0.5Ag2[Cr(C2O4)3]·5H2O (1), with open architecture has been synthesized in water and characterized by elemental analysis, vibrational and electronic spectra, and single crystal X-ray structure determination. Compound 1 crystallizes in a monoclinic space group C2/c, with unit cell parameters a = 18.179(3), b = 14.743(2), c = 12.278(2)A, β = 113.821(3), V = 3010.34(90) A3, Z = 8. The structure is characterized by a network of anionic [Cr(C2O4)3]3- units connected through the O atoms of the oxalates to Ba2+ and Ag+ sites, forming a three-dimensional coordination polymer with one-dimensional isolated nanochannels parallel to the c axis, and encapsulating hydrogen-bonded guest water molecules. The bulk structure is consolidated by O–H···O bridgings within the nanochannels and by coulombic interactions.