A convenient method for the preparation of mono N-alkylated cyclams and cyclens in high yields
作者:Cong Li、Wing-Tak Wong
DOI:10.1016/s0040-4039(02)00497-5
日期:2002.4
Selective and high yield synthesis of mono N-substituted derivatives of cyclam and cyclen can be achieved by using a direct and general synthetic method with very mild reaction conditions.
Luminescent terbium(<scp>iii</scp>) complexes with pendant crown ethers responding to alkali metal ions and aromatic antennae in aqueous solution
作者:Cong Li、Wing-Tak Wong
DOI:10.1039/b206561b
日期:——
luminescence lifetime of TbL2 with a pendant 15-crown-5 increased by 65% to 2.95 ms with an [Na+] concentration of 0.13 M in aqueous solution; the maximum amplification of the luminescence intensity of TbL1 containing aza-15-crown-5 reached a factor of 47 upon addition of the aromatic antenna p-chlorobenzoate 1.