Organic crystal engineering with piperazine-2,5-diones. 2. Crystal packing of weakly dipolar piperazinediones derived from 2-amino-4-bromo-7- methoxyindan-2-carboxylic acid

Article abstract of DOI:10.1016/S0040-4020(99)00924-2

Piperazine-2,5-diones with the potential to manifest three chemically distinct and linearly independent intermolecular interactions were synthesized from the enantiomers of 2-amino-4-bromo-7-methoxyindan-2- carboxylic acid. Samples of enantiomerically pur