Mono-, Di- and Trinuclear Dioxo Complexes of Uranium Containing Hydrazonato and Azomethine Ligands
作者:C. C. Gatto、E. Schulz Lang、A. Kupfer、A. Hagenbach、Ulrich Abram
DOI:10.1002/zaac.200400103
日期:2004.8
Mono-, di or trinuclear dioxouranium complexes with benzoylhydrazonato or azomethine ligands were prepared by reactions of common dioxouranium precursors such as UO2(NO3)2 · 6 H2O or [NBu4]2[UO2Cl4] with vanillin benzoylhydrazone (H2L4), salicylaldehyde benzoylhydrazone (H2L5), 2-hydroxyacetylbenzene salicylhydrazone (H3L6) or N-(2-ethoxycarbonyl-3-oxo-but-1-en(1)yl)-2-aminophenol (H2L7). Spectroscopic
Mixed-ligand complexes of technetium Part XI. Nitridotechnetium complexes with tri- and tetradentate azomethines. X-ray molecular and crystal structure of [N-(2-ethoxycarbonyl-3-oxo-but-1-en(1)yl)-2-aminophenolato](triphenylphosphine)nitridotechnetium(V), TcN(ecbap)(Ph3P)
作者:Ulrich Abram、Sonja Abram、Rudolf Münze、Ernst-Gottfried Jäger、Joachim Stach、Reinhard Kirmse、Gert Admiraal、Paul T. Beurskens
DOI:10.1016/s0020-1693(00)90160-9
日期:1991.4
Diamagnetic nitridotechnetium(V) complexes with tri- and tetradentate azomethine ligands which possess electron withdrawing groups in their periphery can be prepared starting from TcNCl 2 (Ph 3 P) 2 or (in the case of the tetradentate ligands) TcNX 4 − (X = Cl, Br). The products are air stable compounds which have been characterized by elemental analysis, infrared and UV-Vis spectroscopy, NMR and mass
可以在TcNCl 2(Ph 3 P)2或(对于四齿配体的情况下)TcNX 4-(X = Cl,Br)。产品是空气稳定的化合物,已通过元素分析,红外和紫外-可见光谱,NMR和质谱进行了表征。混合配体络合物[N-(2-乙氧羰基-3-氧代丁-1-烯(1)基)-2-氨基苯酚](三苯基膦)氮化nit(C 31 H 28 N 2 O 4 PTc,M r = 622.5)在空间群C 2 / c中结晶为单斜晶。配位几何形状是一个扭曲的方形金字塔,顶部带有硝化配体。
作者:Claudia C. Gatto、Ernesto Schulz Lang、Ulrich Abram
DOI:10.1016/s1387-7003(03)00165-5
日期:2003.8
Azomethine ligands with electron-withdrawing groups such as bisN,N'-(2-ethoxycarbonyl-3-oxo-but-1-en(1)yl)-1,2-diamino-benzene (H2L1) or N-(2-ethoxycarbonyl-3-oxo-but-1-en(1)yl)-2-aminophenol (H2L2) react with uranyl nitrate under deprotonation and formation of chelate complexes. The composition of the products can be controlled by the reaction conditions and the denticity of the ligands. Structure determinations have been performed on [NEt3H][UO2(L-1)(OMe)], [UO2(L-1)(DMSO)] and [NEt3H](2) [UO2(L-2)}(3)(mu(3)-O)]. (C) 2003 Elsevier Science B.V. All rights reserved.