ChemInform Abstract: The First Fluorinated Cyclams

Abstract

ChemInform Abstract ((III) and (IV); protonation constants; stability constant of (Vc) 2.5 ±0.2; EPR data for all (V); UV data and half-wave potentials of complexes (V) and (VI)).

New macrocyclic dioxotetraamines bearing 2-pyridylmethyl as functional donor pendant(s): synthesis, properties and crystal structure of their copper(II) complexes †

“…The chemistry of macrocyclic dioxotetraamines has received much attention and has been extensively studied in recent years. [1][2][3][4][5] Macrocyclic dioxotetraamines are unique chelators for some transition-metal ions. They bear the dual structural features of macrocyclic tetraamines and oligopeptides and have many interesting properties and important functions.…”

“…9 However, up to now, only a few examples of such functionalized macrocyclic dioxotetraamines have been reported. 2f,i,j,10, 11 Herein, we report the synthesis and characterization of two novel macrocyclic dioxo- [13]aneN 4 (1,4,7,10-tetraazacyclotridecane-11,13-dione) compounds bearing 2-pyridylmethyl as additional co-ordinating donor pendant(s), and their complexation properties with Cu II as well as the crystal structure of one of their copper() complexes.…”