Urea Worsham J, Levy H, Peterson S Acta Crystallographica 10 (1957) 319-323 The positions of hydrogen atoms in urea by neutron diffraction _cod_database_code 1008776 _database_code_amcsd 0016652 CELL PARAMETERS: 5.6610 5.6610 4.7120 90.000 90.000 90.000 SPACE GROUP: P-42_1m X-RAY WAVELENGTH: 1.541838 Cell Volume: 151.005 Density (g/cm3): 1.321 MAX. ABS. INTENSITY / VOLUME**2: 0.2103807277E-02 RIR: 0.001 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.83 100.00 4.7120 0 0 1 2 22.21 52.01 4.0029 1 1 0 4 24.58 6.38 3.6216 1 0 1 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.