Add time:08/06/2019         Source:sciencedirect.com

Studies on the conformational polymorphism of organic dyes with bulky and flexible substituents showed that the benzyl moiety of 2,5-bis(dibenzylamino)-3,6-dichloro-p-benzoquinone can be easily eliminated under ambient light conditions to afford two analogous derivatives, 2,5-bis(benzylamino)-3,6-dichloro-p-benzoquinone and 2-amino-5-benzylamino-3,6-dichloro-p-benzoquinone. Herein, we report the optical properties as well as the molecular and crystal structures of these three diaminodichlorobenzoquinone dyes with the details of their crystallization. The responses of 2,5-bis(dibenzylamino)-3,6-dichloro-p-benzoquinone under irradiation in solution and the crystalline states are reported.

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