Macrocycles within Macrocycles: Cyclen, Cyclam, and Their Transition Metal Complexes Encapsulated in Cucurbit[8]uril
作者:Soo-Young Kim、In-Sun Jung、Eunsung Lee、Jaheon Kim、Shigeru Sakamoto、Kentaro Yamaguchi、Kimoon Kim
DOI:10.1002/1521-3773(20010601)40:11<2119::aid-anie2119>3.0.co;2-4
日期:2001.6.1
Reminiscent of Russian Matrioshka dolls, tetraazamacrocycles (1,4,7,10-tetraazacyclododecane (cyclen) and 1 , 4 , 8 , 11 - tetraazacyclotetradecane (cyclam)) and their transition metal complexes are encapsulated in the cavity of cucurbit[8]uril (CB[8]). The X-ray crystal structure of the [Cu(cyclen)] in CB[8] complex (see picture; copper: green, oxygen: red, nitrogen: blue, carbon: gray) reveals a five-coordinate
让人联想到俄罗斯Matrioshka玩偶,四氮杂七环(1,4,7,10-四氮杂环十二烷(cycln)和1,4,8,11-四氮杂环十四烷(cyclam))及其过渡金属配合物被包裹在葫芦形腔中[8] uril (CB [8])。CB [8]络合物中[Cu(cycln)]的X射线晶体结构(见图片;铜:绿色,氧:红色,氮:蓝色,碳:灰色)显示出一个五坐标的Cu II中心。方形锥体环境,其中水分子与轴向位置结合在一起。