Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, 78712-0165, TX, USA.
Dalton Trans. 2012 Oct 7;41(37):11449-53. doi: 10.1039/c2dt31268a. Epub 2012 Aug 14.
Two hexanuclear 3d-4f Ni-Eu and Cu-Eu complexes [Eu(4)Ni(2)L(2)(OAc)(12)(EtOH)(2)] (1) and [Eu(4)Cu(2)L(2)(OAc)(12)]·2H(2)O (2) are reported which are formed from the salen type Schiff-base ligand H(2)L (H(2)L = N,N'-bis(3-methoxysalicylidene)butane-1,4-diamine). In both complexes, four Eu(3+) cations are bridged by eight OAc(-) groups and the chain is terminated at each end by two ML (M = Ni and Cu) units. The structures of 1 and 2 were determined by single crystal X-ray crystallographic studies and the luminescence properties of the free ligand and metal complexes in solution were measured.
报道了两种六核 3d-4fNi-Eu 和 Cu-Eu 配合物 [Eu(4)Ni(2)L(2)(OAc)(12)(EtOH)(2)] (1) 和 [Eu(4)Cu(2)L(2)(OAc)(12)]·2H(2)O (2),它们是由 salen 型希夫碱配体 H(2)L (H(2)L = N,N'-双(3-甲氧基水杨醛)丁二胺)形成的。在这两个配合物中,四个 Eu(3+)阳离子由八个 OAc(-)基团桥接,链的每一端都由两个 ML (M = Ni 和 Cu)单元终止。通过单晶 X 射线晶体学研究确定了 1 和 2 的结构,并测量了游离配体和金属配合物在溶液中的发光性质。