Synthesis, crystal structure and investigation of mononuclear copper(II) and zinc(II) complexes of a new carboxylate rich tripodal ligand and their interaction with carbohydrates in alkaline aqueous solution
作者:Christopher D. Stewart、Mayra Pedraza、Hadi Arman、Hua-Jun Fan、Eduardo Luiz Schilling、Bruno Szpoganicz、Ghezai T. Musie
DOI:10.1016/j.jinorgbio.2015.04.012
日期:2015.8
tripodal ligand, N-[2-carboxybenzomethyl]-N-[carboxymethyl]-β-alanine (H3camb), and its di-copper(II), (NH4)2[1]2, and di-zinc(II), ((CH3)4 N)2[2]2, complexes have been synthesized as carbohydrate binding models in aqueous solutions. The ligand and complexes have been fully characterized using several techniques, including single crystal X-ray diffraction. The interactions of (NH4)2[1]2 and ((CH3)4 N)2[2]2
一种新的富含羧酸盐的不对称三足配体,N -[2-羧基苯甲甲基] -N- [羧甲基]-β-丙氨酸(H 3 camb)及其二铜(II),(NH 4)2 [ 1 ] 2,和二锌(II), ((CH 3 ) 4 N) 2 [ 2 ] 2复合物已被合成为水溶液中的碳水化合物结合模型。配体和配合物已使用多种技术进行了充分表征,包括单晶 X 射线衍射。使用 UV-Vis 研究了(NH 4 ) 2 [ 1 ] 2和 ((CH 3 ) 4 N) 2 [ 2 ] 2与d-葡萄糖、d-甘露糖、d-木糖和木糖醇在水性碱性介质中的相互作用和13 C-NMR 光谱技术。摩尔电导、NMR 和 ESI-MS 研究表明,络合物在溶液中解离,产生各自的络合物阴离子1 -和2 -。复合物1 -和2 -对天然丰富且生物学相关的糖、d-葡萄糖、d-甘露糖、d-木糖和木糖醇表现出螯合能力。即使在溶液中存在化学计量过量的底物,络合