兩個(gè)雙核稀土金屬配位聚合物的溶劑熱合成、晶體結(jié)構(gòu)及熒光性質(zhì)
發(fā)布時(shí)間:2018-04-10 02:38
本文選題:鑭系配合物 切入點(diǎn):熒光 出處:《無(wú)機(jī)化學(xué)學(xué)報(bào)》2017年09期
【摘要】:以順丁烯二酰肼(MH)為配體,通過(guò)溶劑熱法合成了配位聚合物[Dy2(MH)6]n·0.5DMF(1)和[Eu2(MH)6]n(2)。通過(guò)紅外光譜、X射線粉末衍射、X射線單晶衍射表征了2個(gè)晶體的結(jié)構(gòu)。配合物1和2都是三斜晶系,P1空間群。以雙核結(jié)構(gòu)為頂點(diǎn)作圖得到配合物的空間拓?fù)浣Y(jié)構(gòu),拓?fù)漕?lèi)型為tsi。配合物的熱重分析結(jié)果表明2個(gè)配合物在315℃左右仍有較好的熱穩(wěn)定性。固體熒光結(jié)果表明配合物2在激發(fā)波長(zhǎng)為375 nm時(shí)有對(duì)應(yīng)Eu~(3+)的5D0→7FJ(J=0~4)能級(jí)能量的5個(gè)發(fā)射峰,最強(qiáng)發(fā)射峰波長(zhǎng)為616 nm,歸屬為Eu~(3+)的5D0→7F2能級(jí)躍遷。
[Abstract]:The coordination polymer [Dy2(MH)6] n 0.5DMF ~ (1) and [Eu2(MH)6] n ~ (2 +) were synthesized by solvothermal method with maleic hydrazide (MH) as ligand.The structures of two crystals were characterized by X-ray powder diffraction and X-ray single crystal diffraction.Complexes 1 and 2 are space groups of trichroic systems.The spatial topological structure of the complex is obtained by using the binuclear structure as the vertex, and the topological type is tsi.The thermogravimetric analysis results show that the two complexes still have good thermal stability at 315 鈩,
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