Macrocyclic Poly Arylamines for Rigid Connection of Poly Radical Cation Spins
摘要:
[GRAPHICS]The synthesis of macrocyclic arylamines 3 and 4 is reported, These structures yield conformationally rigid polyradical cations for investigation of their electron spin properties, Dication 3(2+) has dual N and N' connection of its p-phenylenediamine radical cation units via 2,7-naphthalene bridges, By ESR and NMR analysis, 3(2+) is found to possess a populated, low-lying triplet excited state, Macrocycle 4 undergoes multielectron oxidation as observed by cyclic voltammetry to yield polycations with more limited kinetic stability.
Macrocyclic Poly Arylamines for Rigid Connection of Poly Radical Cation Spins
摘要:
[GRAPHICS]The synthesis of macrocyclic arylamines 3 and 4 is reported, These structures yield conformationally rigid polyradical cations for investigation of their electron spin properties, Dication 3(2+) has dual N and N' connection of its p-phenylenediamine radical cation units via 2,7-naphthalene bridges, By ESR and NMR analysis, 3(2+) is found to possess a populated, low-lying triplet excited state, Macrocycle 4 undergoes multielectron oxidation as observed by cyclic voltammetry to yield polycations with more limited kinetic stability.
Macrocyclic Poly Arylamines for Rigid Connection of Poly Radical Cation Spins
作者:Trent D. Selby、Silas C. Blackstock
DOI:10.1021/ol991040e
日期:1999.12.1
[GRAPHICS]The synthesis of macrocyclic arylamines 3 and 4 is reported, These structures yield conformationally rigid polyradical cations for investigation of their electron spin properties, Dication 3(2+) has dual N and N' connection of its p-phenylenediamine radical cation units via 2,7-naphthalene bridges, By ESR and NMR analysis, 3(2+) is found to possess a populated, low-lying triplet excited state, Macrocycle 4 undergoes multielectron oxidation as observed by cyclic voltammetry to yield polycations with more limited kinetic stability.