Bifunctional Chelating Agents Based on Ionic Carbosilane Dendrons with DO3A at the Focal Point and Their Complexation Behavior with Copper(II)
作者:Silvia Moreno、Paula Ortega、Francisco Javier de la Mata、Maria Francesca. Ottaviani、Michela Cangiotti、Alberto Fattori、María Ángeles Muñoz-Fernández、Rafael Gómez
DOI:10.1021/acs.inorgchem.5b01047
日期:2015.9.21
the DO3A ligand to the focal point of cationic or anionic carbosilane dendrons, affording a set of bifunctional chelating agents (BFCAs) useful for potential biomedical applications. The complexation behavior study of ionic BFCAs has been accomplished by UV–vis and electron paramagnetic resonance spectroscopy as well as potentiometric titrations. The presence of the dendron branches modifies the complexation
设计了一种合成规程,将DO3A配体掺入阳离子或阴离子碳硅烷树突的焦点,从而提供了一组对潜在生物医学应用有用的双功能螯合剂(BFCA)。离子型BFCAs的络合行为研究已通过UV-vis和电子顺磁共振波谱以及电位滴定法完成。树突分支的存在相对于1,4,7,10-四氮杂环十二烷-N,N ',N '' ,N‴-四乙酸(DOTA)配体。同样,在支链和外围基团对配位模式的贡献中,在羧酸酯封端的树突中观察到与类似的磺酸盐或胺封端的树突不同的行为。Cu-S 2 O 2配位位点的存在与否和生成可能是考虑特定生物医学应用时要考虑的重要因素。