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Chem Commun (Camb)
; 49(38): 3964-6, 2013 May 11.
Article
in English
| MEDLINE
| ID: mdl-23549438
ABSTRACT
Thermally reversible photochromic spiro-acridans have been synthesized for the first time. They exhibit high ring opening efficiencies. As the formed zwitterions do not possess a merocyanine structure their lifetime is in the range of milliseconds to seconds. An observed side reaction can be avoided by suitable substitution of hydrogen atoms.