Potentially Multidentate Tripodal Amine Catechol Ligands as Chelators for Ga(III) and In(III)

Bulletin of the Korean chemical society

B K Kanungo¹  Suban K Sahoo¹  Minati Baral¹  Rati Kanta Bera¹ 

关键词: Tripodal amine-catechol ligand;    Ga(III);    In(III);    Potentiometry;    Spectrophotometry;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The binding abilities of two multidentate tripodal amine catechol ligands, cis,cis-1,3,5-tris[(2,3-dihydroxybenzylamino) aminomethyl]cyclohexane (TMACHCAT, L¹) and N¹,N³,N⁵-tris(2-(2,3-dihydroxybenzylamino) ethyl)cyclohexane-1,3,5-tricarboxamide (CYCOENCAT, L²) with Ga(III) and In(III) have been investigated by potentiometric and spectrophotometric methods in an aqueous medium of 0.1 M KCl at 25 �? 1 oC. The ligands L1 and L2 formed various monomeric species MLH₃, MLH₂, MLH and ML (M = Ga⁺³ and In⁺³) and showed potential to form strong encapsulated tris(catechol) type complexes. The coordination modes, binding ability and selectivity of the ligands towards Ga(III) and In(III) have been discussed with the help of experimental evidences, and supported with molecular modeling calculations.

【 授权许可】

Unknown