Crystal Growth & Design
Crystal Growth & Design
5 years ago

Photo- vs Mechano-Induced Polymorphism and Single Crystal to Single Crystal [2 + 2] Photoreactivity in a Bromide Salt of 4-Amino-Cinnamic Acid

Photo- vs Mechano-Induced Polymorphism and Single Crystal to Single Crystal [2 + 2] Photoreactivity in a Bromide Salt of 4-Amino-Cinnamic Acid
Fabrizia Grepioni, Simone d’Agostino, Elisa Boanini, Paola Taddei, Dario Braga
Here we report on the polymorphism and photoreactivity of a hydrobromide salt of 4-aminocinnamic acid, [1H]Br, which we obtained in two polymorphic forms, A and B. While form B photoreacts in an SCSC fashion, to the corresponding dimer α-[12H2]Br2 via formation of solid solutions, irradiation of form A, surprisingly, triggers an SCSC conversion into a third polymorph, denoted as C.

Publisher URL: http://dx.doi.org/10.1021/acs.cgd.7b00415

DOI: 10.1021/acs.cgd.7b00415

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