Organic Letters
2000-05-01
Triamino-s-triazine triradical trications. An experimental study of triazine as a magnetic coupling unit
Selby, Stickley, Blackstock
文献索引:Org. Lett. 2 , 171-174, (2000)
全文:HTML全文
摘要
[structure: see text] Triamino-s-triazine derivatives 3a, 4, and 5 have been prepared, and their cationic states have been analyzed electrochemically. At 298 K, 3a+ has a limited lifetime in CH2Cl2 solution. However, 4+ and 5+ are long-lived under such conditions, and quartet states of 4(3+) and 5(3+) are observed by ESR spectroscopy. Variable-temperature ESR analysis and NMR shift susceptibility measurements indicate that 5(3+) is a doublet ground state with a populated quartet state.
相关化合物
相关文献:
Strohriegl, P.; et al.
[Advanced Mat. 14 , 1439-1452, (2002)]