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Z状顺磁性化合物[{Cu(bipy)[C6H4(COO)2]}2·H2O]n和[Cu(phen)[C6H4(COO)2]]n的分子振动光谱研究
Study on the Spectroscopy of Paramagnetic Compounds [{Cu(bipy) [C6H4(COO)2]}2·H2O]n and [C u(phen)[C6H4(COO)2]]n
【摘要】 用分子振动光谱对已合成的具有顺磁性的化合物 [{Cu(bipy) [C6H4(COO) 2 ]} 2 ·H2 O]n(Ⅰ )和 [Cu( phen) [C6H4(COO) 2 ]]n(Ⅱ )进行深入研究 ,推测它们的结构 ,并将得到的结果与X射线晶体衍射测定的结构进行比较。文章对化合物的红外、拉曼光谱进行归属 ,还讨论了分子振动光谱与结构的关系
【Abstract】 The cluster compounds with d9-d9 magnetic system were investigated beca use of their magnetic character. Some of the copper(Ⅱ) compounds with terep ht halato as bridged unit,[{Cu(bipy)[C6H4(COO)2]}2·H2O] n and [Cu(phen)[C6H4(COO)2]] n ,have been synthesized through a solvoth ermal reaction,and their crystal structures have been determined by X-ray dif fraction. Their shape looks like zigzag-chain. In this paper,the mole cular vibration spectra of the title complexes have been studied in detail. The middle and far-infrared spectra,and Raman spectra of the compounds h ave been reported and their assignments have been made experientially. The chara cte ristic carbonyl absorption of terephthalato group at 1 688 cm-1 disappear ed while the complexes formed. The characteristic peaks of COO- group were splited into two peaks respectively that appeared at 1 603,1 574 cm- 1 ( ν as COO ) and 1 369,1 356 cm-1 ( ν s COO ) in [{Cu(bipy)[C6H4(COO)2]}2·H2O] n ,and at 1 614,1 605 cm-1 (νas COO ) and 1 373,1 344 cm-1 (νsCOO ) in [Cu(phen)[C6H4(COO)2]] n . The relationship between the st ructures of the compounds and the spectra has been discussed as well. The coin cidence between experiential assignments and the theoretic calculation will be c onfirmed.
- 【文献出处】 光谱学与光谱分析 ,Spectroscopy and Spectral Analysis , 编辑部邮箱 ,2004年03期
- 【分类号】O657.3
- 【下载频次】57