Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels

Clémence Eboga Tanke; Bridget N. Ndosiri; Yves A. Mbiangué; Gouet Bebga; Justin Nenwa

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Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels

机译：充水纳米通道的Ba（II）/ Ag（I）/ Cr（III）-草酸盐的合成，表征和X射线结构

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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)?, β = 113.821(3), V = 3010.34(90) ?3, 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.

机译：合成了一种开放式结构的新型混合钡（II）/银（I）/铬（III）草酸盐Ba0.5Ag2 [Cr（C2O4）3]·5H2O（1），并通过元素分析对其进行了表征，振动和电子光谱，以及单晶X射线结构测定。化合物1在单斜空间群C2 / c中结晶，其晶胞参数为a = 18.179（3），b = 14.743（2），c = 12.278（2）?、β= 113.821（3），V = 3010.34（90））？3，Z =8。该结构的特征是通过草酸盐的O原子连接到Ba2 +和Ag +位点的阴离子[Cr（C2O4）3] 3-单元网络，形成一个三元配位聚合物平行于c轴的三维隔离纳米通道，并封装氢键的客体水分子。整体结构通过纳米通道内的O–H···O桥接和库仑相互作用得以巩固。

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《American Journal of Analytical Chemistry》 |2016年第1期|共8页
作者
Clémence Eboga Tanke; Bridget N. Ndosiri; Yves A. Mbiangué; Gouet Bebga; Justin Nenwa;
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Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels

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