Organic letters

Triamino-s-triazine triradical trications. An experimental study of triazine as a magnetic coupling unit

TD Selby, KR Stickley, SC Blackstock

Index: Selby, Trent D.; Stickley, Kurt R.; Blackstock, Silas C. Organic Letters, 2000 , vol. 2, # 2 p. 171 - 174

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Citation Number: 43

Abstract

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 ...