Comment on “Trimorphs of 4-bromophenyl 4-bromobenzoate. Elastic, brittle, plastic” by S. Saha and G. R. Desiraju, Chem. Commun., 2018, 54, 6348†,10.1039/D0CC07668F

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Comment on “Trimorphs of 4-bromophenyl 4-bromobenzoate. Elastic, brittle, plastic” by S. Saha and G. R. Desiraju, Chem. Commun., 2018, 54, 6348†

John C. McMurtrie,Jack K. Clegg

Chemical Communications Pub Date : 04/19/2021 00:00:00 , DOI:10.1039/D0CC07668F

Abstract

A re-refinement of the published but chemically implausible, crystal structure of “Form III” of 4-bromophenyl 4-bromobenzoate shows that it is not a polymorph, but instead a co-crystal containing both 4-bromophenyl 4-bromobenzoate (≈25%) and likely 4-bromophenyl 4-nitrobenzoate (≈75%).