The present invention relates to novel bispidon ligands, a method for the production thereof, and the use thereof as a ligand in metal complexes and the selective separation of metals, metal complexes comprising said ligands, method for the production thereof, and the use of such metal complexes in organic synthesis, in bleaching, and in the radiopharmaceutical field.
Dioxygen Reactivity of New Bispidine-Copper Complexes
作者:Peter Comba、Christina Haaf、Stefan Helmle、Kenneth D. Karlin、Shanthi Pandian、Arkadius Waleska
DOI:10.1021/ic2019296
日期:2012.3.5
second-generation bispidine-based ligands (bispidine = 3,7-diazabicyclo[3.3.1]nonane; mono- and bis-tetradentate; exclusively tertiary amine donors) with dioxygen [(reversible) binding of dioxygen by copper(I)] is reported. The UV–vis, electrospray ionization mass spectrometry, electron paramagnetic resonance, and vibrational spectra (resonance Raman) of the dioxygen adducts indicate that, depending on
三种不同的基于第二代双吡啶的配体(双吡啶 = 3,7-二氮杂双环 [3.3.1] 壬烷;单和双四齿;仅叔胺供体)的铜配合物与双氧 [(可逆)结合的反应性铜 (I)] 产生的分子氧被报道。双氧加合物的 UV-vis、电喷雾电离质谱、电子顺磁共振和振动光谱(共振拉曼)表明,根据配体和反应条件,几种不同的物质(单核和双核、超氧、过氧和氢过氧化物),部分相互平衡,形成。配体结构和/或实验条件(溶剂、温度、相对浓度)的微小变化允许在不同形式之间切换。使用其中一种配体,可以表征末端过氧化二铜(II)复合物和单核氢过氧化铜(II)复合物。使用另一种配体,观察到可逆的双氧结合,导致亚稳态超氧铜 (II) 复合物。与 Cu 可逆结合所涉及的双氧量我被定量地确定了。在计算(密度泛函理论)分析的基础上讨论了分子氧结合的机制以及三个配体中每一个对特定分子氧加合物的偏好。
[DE] BISPIDONLIGANDEN UND DEREN METALLKOMPLEXE<br/>[EN] BISPIDON LIGANDS AND THE METAL COMPLEXES THEREOF<br/>[FR] LIGANDS BISPIDONE ET LEURS COMPLEXES MÉTALLIQUES
申请人:UNIV HEIDELBERG
公开号:WO2009010129A1
公开(公告)日:2009-01-22
Die vorliegende Erfindung betrifft neuartige Bispidonliganden, Verfahren für ihre Herstellung und ihre Verwendung als Ligand in Metallkomplexen und der selektiven Trennung von Metallen, diese Liganden enthaltende Metallkomplexe, Verfahren zu deren Herstellung sowie die Verwendung solcher Metallkomplexe in der organischen Synthese, in der Bleichtechnik und im radiopharmazeutischen Bereich.
Synthesis, Structure, and Highly Efficient Copper-Catalyzed Aziridination with a Tetraaza-Bispidine Ligand
The distorted trigonal‐bipyramidal CuII complex [Cu(L1)(NCCH3)]2+ of the novel tetradentate bispidine‐derived ligand L1 with four tertiary amine donors (L1=1,5‐diphenyl‐3‐methyl‐7‐(1,4,6‐trimethyl‐1,4‐diazacycloheptane‐6‐yl)diazabicyclo[3.3.1]nonane‐9‐one) is a very efficient catalyst for the aziridination of olefins in the presence of a nitrene source. In agreement with the experimental data (in situ