Abstract:In the title compound, C5H9NO2·H2O, the amino acid is in the usual zwitterionic form involving the α-carboxylate group. The cyclobutane backbone of the amino acid is disordered over two conformations, with occupancies of 0.882 (7) and 0.118 (7). In the crystal, N—H⋯O and O—H⋯O hydrogen bonds link the zwitterions [with the water molecule involved as both acceptor (with the NH3
+) and donor (through a single carboxylate O from two different aminocyclobutane carboxylate moities)], resulting in a two-dimensiona… Show more
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