Comparing the Structures of Two Allomorphic Polyoxotungstates and the Difference in Weak Interactions by Thermal-dependent 2D-COS IR to Identify
刘婷玉;陈义平;黄晓辉;陈宁;黄梦梦;孙燕琼
a (College of Chemistry of Chemistry, Fuzhou University, Fuzhou 350108, China)
b (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China)
Comparing the Structures of Two Allomorphic Polyoxotungstates and the Difference in Weak Interactions by Thermal-dependent 2D-COS IR to Identify
LIU Ting-Yu;CHEN Yi-Ping;HUANG Xiao-Hui;CHEN Ning;HUANG Meng-Meng;SUN Yan-Qiong
a (College of Chemistry of Chemistry, Fuzhou University, Fuzhou 350108, China)
b (State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China)
A three-dimensional (3D) Keggin-type heteropolytungstate{Zn(phen)3}3[ZnW12O40]·
9H2O 1 (phen = 1,10-phenanthroline) has been synthesized through a conventional hydrothermal synthesis and was characterized by X-ray single-crystal diffraction analysis, X-ray powder diffraction (XRD), IR, UV-DRS, thermogravimetric analysis (TGA), thermal-dependent 2D-IR correlation spectroscopy (2D-COS IR) and Raman spectrum. Crystal data for compound 1: trigonal system, space group R3 with a = b = 25.268(4), c = 17.462(5) Å, γ = 120º, V = 9655(4) Å3 and Z = 3. Compound 1 is allomorphic to {Co(phen)3}3[CoW12O40]·9H2O 2, which has been reported by Feng Chai et al. In compound 2, its prominent feature is that the decisive role of water molecules (O–H···O) builds a 3D supramolecular structure. However, in the structure of compound 1, the interlayer space is filled by Zn(phen)3]2+ cations which linked the layers via C–H···O hydrogen bonding interactions to construct a three-dimensional framework. Two compounds are different in weak interactions, so we identify them by Thermal-dependent 2D-COS IR. Moreover, the fluorescence of compound 1 was also described.
A three-dimensional (3D) Keggin-type heteropolytungstate{Zn(phen)3}3[ZnW12O40]·
9H2O 1 (phen = 1,10-phenanthroline) has been synthesized through a conventional hydrothermal synthesis and was characterized by X-ray single-crystal diffraction analysis, X-ray powder diffraction (XRD), IR, UV-DRS, thermogravimetric analysis (TGA), thermal-dependent 2D-IR correlation spectroscopy (2D-COS IR) and Raman spectrum. Crystal data for compound 1: trigonal system, space group R3 with a = b = 25.268(4), c = 17.462(5) Å, γ = 120º, V = 9655(4) Å3 and Z = 3. Compound 1 is allomorphic to {Co(phen)3}3[CoW12O40]·9H2O 2, which has been reported by Feng Chai et al. In compound 2, its prominent feature is that the decisive role of water molecules (O–H···O) builds a 3D supramolecular structure. However, in the structure of compound 1, the interlayer space is filled by Zn(phen)3]2+ cations which linked the layers via C–H···O hydrogen bonding interactions to construct a three-dimensional framework. Two compounds are different in weak interactions, so we identify them by Thermal-dependent 2D-COS IR. Moreover, the fluorescence of compound 1 was also described.
This work was supported by the NNSFC (No.21473030, 1371033), Fujian Provincial Natural Science
Foundation (2013J01042), and the Open Fund of State Key Laboratory of Structural Chemistry (20130015)
刘婷玉;陈义平;黄晓辉;陈宁;黄梦梦;孙燕琼. Comparing the Structures of Two Allomorphic Polyoxotungstates and the Difference in Weak Interactions by Thermal-dependent 2D-COS IR to Identify[J]. 结构化学, 2015, 34(11): 1665-1674.
LIU Ting-Yu;CHEN Yi-Ping;HUANG Xiao-Hui;CHEN Ning;HUANG Meng-Meng;SUN Yan-Qiong. Comparing the Structures of Two Allomorphic Polyoxotungstates and the Difference in Weak Interactions by Thermal-dependent 2D-COS IR to Identify. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2015, 34(11): 1665-1674.
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2015, Vol. 34 
