Abstract
In the title zwitterion, C7H14N2O3, the ethylamino and the 5-oxo groups are positionally disordered with occupancy ratios of 0.50:0.50 and 0.70:0.30, respectively. The terminal ethyl –CH3 group undergoes considerable thermal motion. In the crystal, molecules are linked via N—H⋯O hydrogen bonds, forming a two-dimensional arrangement propagating in the bc plane.
Highlights
C7H14N2O3, the ethylamino and the 5oxo groups are positionally disordered with occupancy ratios of 0.50:0.50 and 0.70:0.30, respectively
Molecules are linked via N—H O hydrogen bonds, forming a two-dimensional arrangement propagating in the bc plane
Symmetry codes: (i) −x, y−1/2, −z+1/2; (ii) x, −y+1/2, z−1/2; (iii) x, −y+3/2, z−1/2; (iv) x, y−1, z
Summary
Key indicators: single-crystal X-ray study; T = 273 K; mean (C–C) = 0.003 Å; disorder in main residue; R factor = 0.051; wR factor = 0.147; data-to-parameter ratio = 15.0. C7H14N2O3, the ethylamino and the 5oxo groups are positionally disordered with occupancy ratios of 0.50:0.50 and 0.70:0.30, respectively. Molecules are linked via N—H O hydrogen bonds, forming a two-dimensional arrangement propagating in the bc plane
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