Macrocyclic Compounds And Metal Complexes For Bioimaging And Biomedical Applications
申请人:NATIONAL YANG MING UNIVERSITY
公开号:US20140187527A1
公开(公告)日:2014-07-03
The present disclosure provides a novel class of macrocyclic compounds and their metal complexes formed with transition metal ion, lanthanide metal ions and other metal ions (e.g., Al, Ga, Y, In, Sn, Tl, Pb and Bi) and their applications in the fields of contrast agents, artificial nucleases, fluorescence probes, nuclear medicines and other biomedical applications in the therapeutics or diagnostics.
From Flexible to Constrained Tris(tetraamine) Ligands: Synthesis, Acid-Base Properties, and Structural Effect on the Coordination Process with Nucleotides
作者:Anne-Sophie Delépine、Raphaël Tripier、Michel Le Baccon、Henri Handel
DOI:10.1002/ejoc.201000495
日期:——
This work presents the synthesis and characterization of L2 and L3, which formed with the previously described ligand L1 a family of three tris(tetraamine) ligands based on a mesitylenyl spacer. The trimeric ligands differ from one to the other by the nature of their tetraamine moieties: triethylenetetraamine (L1), cyclen (L2), and constrained cyclen (L3). The impact of the rigidification of the structure
Spectroscopic Properties of a Family of Mono‐ to Trinuclear Lanthanide Complexes
作者:Mohamadou Sy、David Esteban‐Gómez、Carlos Platas‐Iglesias、Aurora Rodríguez‐Rodríguez、Raphaël Tripier、Loïc J. Charbonnière
DOI:10.1002/ejic.201601516
日期:2017.4.10
5-trimethylbenzene bridge in the case of the trinuclear complex. The synthesis and characterization of the ligands are presented, together with the preparation and spectroscopic characterization of the complexes. The luminescence properties of the complexes were determined by UV/Vis absorption spectroscopy and steady-state and time-resolved luminescence spectroscopy in buffered aqueous solutions. Comparison of
Earth Abundant Oxidation Catalysts for Removal of Contaminants of Emerging Concern from Wastewater: Homogeneous Catalytic Screening of Monomeric Complexes
作者:Leslie Garcia、Makynna R. Koper、Somrita Mondal、Joshua T. Priddle、William A. Truong、Elisabeth M. A. Allbritton、Ashtyn G. McAdoo、Desiray J. Cannon-Smith、Neil L. Funwie、Tuyet Hoang、Inseo Kim、David J. Hubin、Jeanette A. Krause、Allen G. Oliver、Timothy J. Prior、Timothy J. Hubin
DOI:10.3390/molecules28186466
日期:——
Twenty novel Mn, Fe, and Cu complexes of ethylene cross-bridged tetraazamacrocycles with potentially copolymerizable allyl and benzyl pendant arms were synthesized and characterized. Multiple X-ray crystalstructures demonstrate the cis-folded pseudo-octahedral geometry forced by the rigidifying ethylene cross-bridge and show that two cis coordination cites are available for interaction with substrate
合成并表征了二十种新型乙烯交联四氮杂大环的锰、铁和铜络合物,其具有潜在可共聚的烯丙基和苄基侧臂。多个X射线晶体结构证明了由刚性乙烯跨桥强制形成的顺式折叠伪八面体几何形状,并表明两个顺式配位点可用于与底物和氧化剂相互作用。Cu 配合物用于测定严酷酸性和高温条件下的动力学稳定性,结果表明基于 cyclam 的配体具有优异的稳定性,在 5 M HCl 和 50-90 °C 下半衰期为数分钟甚至数小时。Fe 和 Mn 配合物的循环伏安研究揭示了可逆氧化还原过程,表明 Fe2+/Fe3+ 和 Mn2+/Mn3+/Mn4+ 氧化态稳定,表明这些配合物催化氧化的可能性。最后,亚甲基蓝、甲基橙和罗丹明 B 的染料漂白实验证明了有效的催化脱色,并允许选择最成功的单体催化剂进行共聚,以生产未来的多相水净化材料。
Nucleophilic reactivity of perhydro-3,6,9,12-tetraazacyclopenteno[1,3-f,g]acenaphthylene. A unified approach to N-monosubstituted and N,N′′-disubstituted cyclene derivatives
Perhydro-3,6,9,12-tetraazacyclopenteno[1,3-f,g] is readily mono- and dialkylated on nitrogen with alkyl bromides and iodides giving mono- and bis-quarternary ammonium salts. The title compound is a unified starting material for the preparation of cyclene based chelators. (C) 2000 Elsevier Science Ltd. All rights reserved.