| Autor: |
Okada, Keiji, Imamura, Kunihiko, Oda, Masaji, Kozaki, Masatoshi, Morimoto, Yoshiki, Ishino, Kiyotaka, Tashiro, Kohji |
| Zdroj: |
Chemistry Letters; September 1998, Vol. 27 Issue: 9 p891-892, 2p |
| Abstrakt: |
The oxidation of 2,2′-(m-phenylene)bis(4,5-diphenylimidazole) 1 with potassium ferricyanide in benzene-aqueous KOH heterogeneous solution gave the diradical dimers 2 and 3. The dimer 2 showed photochromic and piezochromic properties, whereas the dimer 3 has only photochromic property. The structure of the dimers was deduced by NMR analyses. The X-ray structural analysis revealed that the dimer 3 has a novel syn-[3.3]metacyclophane structure. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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