return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2CONHC2H5 (Urea, ethyl-)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-303.023743
Energy at 298.15K 
HF Energy-302.074333
Nuclear repulsion energy243.870348
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.28242 0.06719 0.05585

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.613 -0.227 0.005
H2 -2.676 -1.029 0.741
H3 -3.426 0.472 0.197
H4 -2.750 -0.652 -0.989
C5 -1.274 0.487 0.102
H6 -1.255 1.302 -0.626
H7 -1.154 0.929 1.096
N8 -0.196 -0.450 -0.184
H9 -0.395 -1.432 -0.055
N10 1.449 1.181 0.041
H11 2.436 1.369 -0.047
H12 0.846 1.843 -0.421
C13 1.149 -0.175 -0.027
O14 2.004 -1.054 0.078

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09051.08911.08971.51992.14032.15712.43472.52564.29925.29564.05323.76224.6915
H21.09051.76381.77182.16153.05382.50552.71002.44994.73225.70194.69103.99394.7276
H31.08911.76381.76842.15402.46632.48593.38083.58894.92925.93584.52914.62595.6423
H41.08971.77181.76842.15902.48653.06432.68492.65104.69545.64484.41274.04354.8886
C51.51992.16152.15402.15901.09361.09461.45652.11682.81133.81702.57062.51513.6229
H62.14033.05382.46632.48651.09361.76542.09432.92302.78803.73702.17892.88424.0831
H72.15712.50552.48593.06431.09461.76542.11112.73402.82023.79342.67142.78943.8659
N82.43472.71003.38082.68491.45652.09432.11111.01072.32693.20242.52931.38152.2968
H92.52562.44993.58892.65102.11682.92302.73401.01073.19913.98263.52131.99092.4320
N104.29924.73224.92924.69542.81132.78802.82022.32693.19911.00861.00831.38962.3029
H115.29565.70195.93585.64483.81703.73703.79343.20243.98261.00861.70112.01032.4649
H124.05324.69104.52914.41272.57062.17892.67142.52933.52131.00831.70112.07803.1599
C133.76223.99394.62594.04352.51512.88422.78941.38151.99091.38962.01032.07801.2316
O144.69154.72765.64234.88863.62294.08313.86592.29682.43202.30292.46493.15991.2316

picture of Urea, ethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 108.865 C1 C5 H7 110.125
C1 C5 N8 109.752 H2 C1 H3 108.040
H2 C1 H4 108.716 H2 C1 C5 110.717
H3 C1 H4 108.510 H3 C1 C5 110.211
H4 C1 C5 110.573 C5 N8 H9 117.018
C5 N8 C13 124.774 H6 C5 H7 107.564
H6 C5 N8 109.597 H7 C5 N8 110.887
N8 C13 N10 114.214 N8 C13 O14 122.934
H9 N8 C13 111.721 N10 C13 O14 122.830
H11 N10 H12 115.009 H11 N10 C13 112.950
H12 N10 C13 119.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability