類(lèi)Salen和β-二酮稀土配合物的晶體結(jié)構(gòu)和熒光性質(zhì)(英文)
發(fā)布時(shí)間:2018-02-11 04:07
本文關(guān)鍵詞: -苯二胺縮鄰香蘭素 β-二酮 鑭系配合物 配位 出處:《無(wú)機(jī)化學(xué)學(xué)報(bào)》2016年09期 論文類(lèi)型:期刊論文
【摘要】:通過(guò)1,3-苯二胺縮鄰香蘭素和Ln(acac)3·H2O(Ln=Ce,Eu)反應(yīng),合成了2種雙核稀土配合物[Ce2L(acac)4(CH3OH)]2·2CH2Cl2(1)和[Eu2L(acac)4(CH3OH)]2·2CH2Cl2(2)。X射線單晶衍射分析確定了配合物的晶體結(jié)構(gòu),配合物中2個(gè)稀土離子均為8配位,具有相同的反四棱柱的配位構(gòu)型。熒光性質(zhì)研究表明配合物2顯示稀土離子和配體共發(fā)光,主要原因是配體1,3-苯二胺縮鄰香蘭素的三線態(tài)能級(jí)與中心離子Eu(Ⅲ)的三線態(tài)能級(jí)相匹配。
[Abstract]:Two binuclear rare earth complexes [ce _ 2L ~ (2 +) acacacaca _ (4) (Ch _ 3OH)] _ 2 路2CH _ 2Cl _ (1) and [EU _ (2L) acacacaca _ (4CH _ 3H)] _ (2 路2CH _ 2Cl _ 2H)] 2 路2CH _ 2Cl _ 2O ~ (2 +) have been synthesized by the reaction of o-vanillin with Ln(acac)3 路H _ 2O _ (Ln) ce (EU). The crystal structure of the complexes has been determined by X-ray diffraction. The two rare earth ions in the complexes are all 8-coordinated. The fluorescence properties of complex 2 show that rare earth ions and ligand co-luminescence. The main reason is that the three-wire energy level of the ligand (1) 3-phenylenediamine constricted vanillin matches the three-wire energy level of the central ion EU (鈪,
本文編號(hào):1502170
本文鏈接:http://sikaile.net/kejilunwen/huaxue/1502170.html
最近更新
教材專(zhuān)著