| Autor: |
Selby TD; Department of Chemistry, The University of Alabama, Tuscaloosa 35487, USA., Stickley KR, Blackstock SC |
| Jazyk: |
angličtina |
| Zdroj: |
Organic letters [Org Lett] 2000 Jan 27; Vol. 2 (2), pp. 171-4. |
| DOI: |
10.1021/ol9912736 |
| Abstrakt: |
[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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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