發(fā)布時(shí)間：2018-06-11 12:54

  本文選題：稀土金屬有機(jī)骨架 + ′-二硝基-��； 參考：《無(wú)機(jī)化學(xué)學(xué)報(bào)》2017年11期

【摘要】：在溶劑熱條件下,2,2′-二硝基-4,4′-聯(lián)苯二甲酸(H2L)與Ln(NO3)3·6H2O反應(yīng),成功合成了4個(gè)稀土金屬有機(jī)骨架(LOFs):[Ln L1.5(DMA)]n(Ln=Eu(1),Gd(2),Tb(3),Dy(4),DMA=N,N-二甲基乙酰胺)。采用元素分析、紅外(IR)、熱重(TGA)、單晶和粉末X射線衍射(XRD)對(duì)其結(jié)構(gòu)進(jìn)行了表征。晶體結(jié)構(gòu)分析表明:LOFs 1~4均為單斜晶系、C2/c空間群,為異質(zhì)同晶的雙節(jié)點(diǎn)(3,8)-連接的三維(3D)拓?fù)浣Y(jié)構(gòu)。LOFs 1~4均具有高的熱穩(wěn)定性(分解溫度Td322℃),1顯示銪的特征熒光光譜,而3僅顯示配體的熒光發(fā)射。
[Abstract]:Under solvothermal conditions, four rare earth metal organic frameworks (Ln L1.5DMA) have been successfully synthesized by the reaction of Lnno _ 3O _ 3H _ 2H _ 2H _ 2L _ 2N _ 2N _ 3O _ 3H _ 2N _ 2N _ 3H _ 2H _ 2H _ 2H _ 2H _ 2N _ 3H _ 2N _ 3H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2N _ 2N _ 3H _ 2H _ 2N _ (2) O _ (2) O ~ (2 +) -dimethyl acetamide. [Ln L _ (1.5) (DMA)]. Their structures were characterized by elemental analysis, IR, TGA, single crystal and powder X-ray diffraction (XRD). The results of crystal structure analysis show that all of them are monoclinic system C _ 2 / c space group, and they are hetero-isocrystalline two-node ~ (8) ~ (8) -3 D ~ (3 D) structure. LOFs _ (1) ~ (4) has high thermal stability (decomposition temperature Td322 鈩，

本文編號(hào)：2005317