Structurally reinforced cyclen: a rigidly trans-co-ordinating twelve-membered macrocycle
作者:Ashok Ramasubbu、Kevin P. Wainwright
DOI:10.1039/c39820000277
日期:——
Reaction of 1,4,7,10-tetra-azacyclododecane (cyclen) with 1,2-dibromoethane connects an adjacent pair of secondary amino groups, by means of an ethano bridge, reinforcing the macrocycle and allowing it to circumscribe rigidly nickel(II); an ion to which it would normally be bound in a folded conformation.
1,4,7,10-四氮杂环十二烷(环烷)与1,2-二溴乙烷的反应通过乙醇桥连接相邻的仲氨基对,从而增强了大环并使其刚性地包围镍(II); 通常以折叠构象与之结合的离子。