Macrocycles Incorporating an Endocyclic But Non‐Sterically‐Hindering Chelate: Synthesis and Structural Studies
Macrocycles Incorporating an Endocyclic But Non‐Sterically‐Hindering Chelate: Synthesis and Structural Studies
复制标题
包含内环但非空间位阻螯合物的大环化合物：合成和结构研究
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
O. Wenger
中科院分区：
文献类型：
--
作者：
F. Durola;J. Sauvage;O. Wenger
已经制备了两个不同大小的环，两个环都含有3，3‘-联喹啉(Biiq)螯合物。Biiq配体在其8-和8‘-位带有苯基，这使其具有近似的新月形。8，8‘-二芳基-3，3’-二异喹啉基序的引入导致了一种不寻常的情况。大环的络合位置明确指向大环的内部，但由于配位位置与属于大环结构的各种有机基团之间的距离较大，因此没有空间上的阻碍。报道了这两个化合物的合成，以及其中一个的X射线结构，证实了预期的分子几何性质。
Two rings of different size have been prepared both incorporating a 3,3′-biisoquinoline (biiq) chelate. The biiq ligand bears phenyl groups at its 8- and 8′-positions, which provide it with an approximate crescent shape. The incorporation of the 8,8′-diaryl-3,3′-biisoquinoline motif in a ring leads to an unusual situation. The complexing site of the macroring is unambiguously pointing towards the inner part of the macrocycle, but, at the same time, it is not sterically hindered, due to the relatively large distance between the coordinating site and the various organic groups belonging to the macrocyclic structure. The synthesis of the two compounds is reported, as well as the X-ray structure of one of them, which confirms the expected geometrical properties of the molecules.