Siderophore analogues: a new macrocyclic tetraamine tris(hydroxamate) ligand; synthesis and solution chemistry of the iron(III), aluminium(III) and copper(II) complexes †
作者:Margarida Gaspar、Raquel Grazina、Andrea Bodor、Etelka Farkas、M. Amélia Santos
DOI:10.1039/a809039d
日期:——
A new siderophore analogue TETMAHA (1,4,8,11-tetraazacyclotetradecane-N,N′,N″-tris(N-methylacetohydroxamic acid), a ligand with three hydroxamic acid groups bonded to the macrocycle CYCLAM, has been synthesized and characterized. Its acid–base and chelating properties towards iron(III), aluminium(III) and copper(II) have been studied by potentiometric and spectroscopic techniques. This ligand forms
一种新的铁载体类似物TETMAHA(1,4,8,11- tetraazacyclotetradecane- Ñ,Ñ ',Ñ “ -三(Ñ -methylacetohydroxamic酸),具有结合到大环CYCLAM 3个异羟肟酸基团的配位体,已被合成和表征。它对铁(III),铝(III)和铜(II)的酸碱和螯合性能)已通过电位计和分光镜技术进行了研究。该配体与那些金属离子形成非常稳定的络合物,并且已经确定了形成常数。还通过循环伏安法研究了铁络合物的电子转移机理,该机理被认为对该配体表现出的生物活性很重要。