A. S. Zaguzin, M. A. Bondarenko, N. A. Korobeinikov, A. V. Zaitsev, S. A. Adonin
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引用次数: 0
摘要
制备了新型Ln3+和2-碘对苯二甲酸盐基金属有机骨架[Nd2(2- i -bdc)3(DMF)4]·3.5DMF (1), [Ho2(2- i -bdc)3(DMF)4]·2.7DMF (2), [Yb2(2- i -bdc)3(DMF)4]·4.3DMF (3) （2- i -bdc - 2-碘对苯二甲酸盐，DMF - N，N-二甲基甲酰胺）；用XRD测定了它们的结构。三种同构化合物均含有[Ln2(2-I-bdc)3(DMF)4]双核单元（Ln = Nd, Ho, Yb）。2-I-bdc离子表现出两种不同的配位类型。在第一种类型中，一个羧酸基通过两个氧原子与一个Ln（III）离子连接，另一个羧酸基与两个金属离子连接。第二个羧酸基的一个氧原子只与双核碎片的一个金属中心相连，而第二个氧是一个桥接原子。
Crystal Structures of New 2D Heteroligand Nd(III), Ho(III), and Yb(III) Coordination Polymers with 2-Iodoterephthalate Linkers
Novel Ln3+ and 2-iodoterephthalate based metal-organic frameworks [Nd2(2-I-bdc)3(DMF)4]·3.5DMF (1), [Ho2(2-I-bdc)3(DMF)4]·2.7DMF (2), [Yb2(2-I-bdc)3(DMF)4]·4.3DMF (3) (2-I-bdc - 2-iodoterephthalate, DMF - N,N-dimethylformamide) are prepared; their structure is determined by XRD. All three isostructural compounds contain a [Ln2(2-I-bdc)3(DMF)4] binuclear unit (Ln = Nd, Ho, Yb). The 2-I-bdc dianions exhibit two different types of coordination. In the first type, one carboxylate group is connected with one Ln(III) ion by two oxygen atoms and the other one is connected with two metal ions. One oxygen atom of the second carboxylate group is connected with only one metal center of the binuclear fragment, while the second oxygen is a bridging atom.
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