Z状顺磁性化合物[{Cu(bipy)[C_(6)H_(4)(COO)_(2)]}_(2)·H_(2)O]_(n)和[Cu(phen)[C_(6)H_(4)(COO)_(2)]]_(n)的分子振动光谱研究

Study on the Spectroscopy of Paramagnetic Compounds [{Cu(bipy) [C_(6)H_(4)(COO)_(2)]}_(2)·H_(2)O]_(n) and [C u(phen)[C_(6)H_(4)(COO)_(2)]]_(n)

用分子振动光谱对已合成的具有顺磁性的化合物[{Cu(bipy)[C_(6)H_(4)(COO)_(2)]}_(2)·H_(2) O]_(n)(Ⅰ)和[Cu(phen)[C_(6)H_(4)(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。

The cluster compounds with d^(9)-d^(9)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)[C_(6)H_(4)(COO)_(2)]}_(2)·H_(2)O]_(n)and[Cu(phen)[C_(6)H_(4)(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 1688 cm^(-1)disappear ed while the complexes formed.The characteristic peaks of COO^-group were splited into two peaks respectively that appeared at 1603,1574 cm^(-1)(ν~as_(COO))and 1369,1356 cm^(-1)(ν~s_(COO))in[{Cu(bipy)[C_(6)H_(4)(COO)_(2)]}_(2)·H_(2)O]_(n),and at 1614,1605 cm^(-1)(ν~as_(COO))and 1373,1344 cm^(-1)(ν~s_(COO))in[Cu(phen)[C_(6)H_(4)(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.