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Luminescent coordination polymers constructed using a mixed-ligand strategy for highly selective luminescence sensing of nitrobenzene, Fe3+ and Cr2O72− ions and photodegradation of rhodamine B
CrystEngComm ( IF 3.1 ) Pub Date : 2020-06-15 , DOI: 10.1039/d0ce00677g
Jun-Jie Wang 1, 2, 3, 4, 5 , Fei-Fan Wu 1, 2, 3, 4, 5 , Ning Su 1, 2, 3, 4, 5 , Pan-Pan Li 1, 2, 3, 4, 5 , Si-Yin Wang 1, 2, 3, 4, 5 , Hui-Yan Ma 6, 7, 8, 9, 10 , Yun-Wu Li 6, 7, 8, 9, 10 , Mei-Hui Yu 5, 11, 12, 13
Affiliation  

Using a mixed ligand strategy, ten new luminescent coordination polymers (LCPs), namely, [Cd(IPA-NH2)(Htpim)]n (1), [Mn(IPA-NH2)(Htpim)]n (2), [Zn(IPA-OH)(Htpim)]n (3), [Cd(IPA-OH)(Htpim)]n (4), {[Zn(Htpim)2(H2O)2](IPA-OH)}n (5), {[Cd(Htpim)2(H2O)2](IPA-OH)}n (6), [Cd(IPA-NO2)(Htpim)]n (7), [Zn2(PMA)(Htpim)2]n (8), [Cd2(PMA)(Htpim)2]n (9) and [Cu(H2PMA)(Htpim)2(H2O)]n (10) (Htpim = 2,4,5-tri(4-pyridyl)-imidazole, H2IPA-NH2 = 5-aminoisophthalic acid, H2IPA-OH = 5-hydroxyisophthalic acid, H2IPA-NO2 = 5-nitroisophthalic acid, H4PMA = 1,2,4,5-benzenetetracarboxylic acid) were constructed. Compounds 1–4 and 7–9 have similar 2D 44 networks, while 5, 6 and 10 show 1D chain structures. The results reveal that the coordination configuration of M(II), carboxylic acids, and coordinated water molecules play pivotal roles in the formation of the final structures. Moreover, the selective luminescence sensing and photocatalytic performances of 1–10 were also studied. Interestingly, they can sensitively detect trace amounts of nitrobenzene (NB), Cr2O72− or Fe3+ through luminescence quenching. In addition, 3–10 show high photocatalytic activities toward the degradation of rhodamine B (RhB).

中文翻译:

使用混合配体策略构建的发光配位聚合物,用于硝基苯,Fe3 +和Cr2O72-离子的高选择性发光传感以及若丹明B的光降解

使用混合配体策略,十种新的发光配位聚合物(LCP),即[Cd(IPA-NH 2)(Htpim)] n1),[Mn(IPA-NH 2)(Htpim)] n2) ,[Zn(IPA-OH)(Htpim)] n3),[Cd(IPA-OH)(Htpim)] n4),{[Zn(Htpim)2(H 2 O)2 ](IPA- OH)} n5),{[Cd(Htpim)2(H 2 O)2 ](IPA-OH)} n6),[Cd(IPA-NO 2)(Htpim)] n7),[Zn 2(PMA)(Htpim)2 ] n8),[Cd 2(PMA)(Htpim)2 ] n9)和[Cu(H 2 PMA)(Htpim)2(H 2 O)] n10)(Htpim = 2,4,5-三(4-吡啶基)-咪唑,H 2 IPA-NH 2 = 5-氨基间苯二甲酸,H 2 IPA-OH = 5-羟基间苯二甲酸,H 2制备了IPA-NO 2= 5-硝基间苯二甲酸,H 4 PMA = 1,2,4,5-苯四甲酸。化合物1-47-9具有类似于2D 4 4网络,而5610示出了一维链结构。结果表明,M(II),羧酸和配位的水分子的配位构型在最终结构的形成中起关键作用。此外,还研究了选择性发光传感和1-10的光催化性能。有趣的是,它们可以通过发光猝灭灵敏地检测痕量的硝基苯(NB),Cr 2 O 7 2-或Fe 3+。另外,3-10 表现出对罗丹明B(RhB)降解的高光催化活性。
更新日期:2020-07-13
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