当前位置:
X-MOL 学术
›
Dalton Trans.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Solid state structures and solution behaviour of tetranuclear lanthanide(III) carbonate-bridged coordination compounds of chiral 3 + 3 amine macrocycle
Dalton Transactions ( IF 3.5 ) Pub Date : 2023-08-08 , DOI: 10.1039/d3dt01948a
Karol Wydra 1 , Vasyl Kinzhybalo 2 , Jerzy Lisowski 1
Dalton Transactions ( IF 3.5 ) Pub Date : 2023-08-08 , DOI: 10.1039/d3dt01948a
Karol Wydra 1 , Vasyl Kinzhybalo 2 , Jerzy Lisowski 1
Affiliation
![]() |
The linking of two dinuclear macrocyclic units of large triphenolic hexaazamine by two carbonate anions results in the formation of dimeric tetranuclear Sm(III), Eu(III) and Gd(III) complexes. These complexes were initially obtained serendipitously by fixation of atmospheric carbon dioxide and subsequently obtained in a rational way by the application of carbonate salts. The X-ray crystal structures of these isomorphic complexes show highly folded conformation of the macrocycle. This type of conformation is also confirmed by 2D NMR spectra of the Sm(III) complex. The ESI-MS and NMR spectra reveal also that these carbonate complexes exist in solution in two different forms that are in a concentration-dependent dynamic equilibrium.
中文翻译:
手性3+3胺大环四核镧系元素(III)碳酸酯桥配位化合物的固态结构和溶液行为
大三酚六氮胺的两个双核大环单元通过两个碳酸根阴离子连接导致形成二聚四核Sm( III )、Eu( III )和Gd( III )络合物。这些配合物最初是通过固定大气二氧化碳偶然获得的,随后通过应用碳酸盐以合理的方式获得。这些同构配合物的X射线晶体结构显示出大环的高度折叠构象。这种类型的构象也被 Sm( III ) 配合物的 2D NMR 谱所证实。ESI-MS 和 NMR 谱还表明,这些碳酸盐复合物以两种不同的形式存在于溶液中,并处于浓度依赖性动态平衡。
更新日期:2023-08-08
中文翻译:

手性3+3胺大环四核镧系元素(III)碳酸酯桥配位化合物的固态结构和溶液行为
大三酚六氮胺的两个双核大环单元通过两个碳酸根阴离子连接导致形成二聚四核Sm( III )、Eu( III )和Gd( III )络合物。这些配合物最初是通过固定大气二氧化碳偶然获得的,随后通过应用碳酸盐以合理的方式获得。这些同构配合物的X射线晶体结构显示出大环的高度折叠构象。这种类型的构象也被 Sm( III ) 配合物的 2D NMR 谱所证实。ESI-MS 和 NMR 谱还表明,这些碳酸盐复合物以两种不同的形式存在于溶液中,并处于浓度依赖性动态平衡。