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: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-302.986312
Energy at 298.15K-302.996964
HF Energy-302.046404
Nuclear repulsion energy244.409252
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 MP3=FULL/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3738 3507 29.29      
2 A 3658 3433 27.77      
3 A 3628 3405 27.38      
4 A 3199 3002 19.90      
5 A 3187 2990 27.31      
6 A 3119 2926 30.20      
7 A 3108 2916 13.48      
8 A 3083 2893 32.13      
9 A 1895 1778 506.48      
10 A 1695 1591 162.03      
11 A 1593 1495 2.27      
12 A 1564 1467 3.15      
13 A 1555 1459 6.96      
14 A 1521 1427 29.97      
15 A 1498 1406 255.34      
16 A 1478 1387 20.33      
17 A 1413 1326 16.58      
18 A 1345 1262 6.28      
19 A 1245 1168 19.46      
20 A 1207 1133 2.68      
21 A 1179 1107 33.15      
22 A 1113 1044 11.58      
23 A 1029 965 3.44      
24 A 934 876 1.68      
25 A 848 796 0.94      
26 A 809 759 107.31      
27 A 656 616 36.56      
28 A 624 586 221.92      
29 A 576 540 22.55      
30 A 516 484 54.53      
31 A 424 398 78.82      
32 A 374 351 0.62      
33 A 281 264 2.87      
34 A 208 195 1.82      
35 A 121 113 9.83      
36 A 65 61 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 27242.5 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 25561.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-31G*
ABC
0.28420 0.06740 0.05617

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.612 -0.222 0.003
H2 -2.679 -1.032 0.737
H3 -3.429 0.478 0.197
H4 -2.747 -0.645 -0.996
C5 -1.270 0.488 0.106
H6 -1.249 1.311 -0.620
H7 -1.152 0.931 1.104
N8 -0.193 -0.448 -0.185
H9 -0.393 -1.430 -0.058
N10 1.456 1.172 0.041
H11 2.447 1.350 -0.045
H12 0.862 1.835 -0.437
C13 1.147 -0.175 -0.025
O14 1.989 -1.052 0.078

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09471.09331.09371.52222.14382.16192.43662.52754.30035.29724.06163.75904.6755
H21.09471.77021.77682.16733.06202.51452.71552.45344.73765.70614.70563.99414.7145
H31.09331.77021.77492.16132.47212.49263.38733.59534.93635.94474.54524.62745.6309
H41.09371.77681.77492.16382.49233.07252.68672.65324.69485.64404.41494.04034.8730
C51.52222.16732.16132.16381.09751.09831.45602.11602.81073.81762.57952.50923.6042
H62.14383.06202.47212.49231.09751.76812.09732.92692.78823.74062.18352.88204.0692
H72.16192.51452.49263.07251.09831.76812.11752.73942.82673.80082.69262.79003.8538
N82.43662.71553.38732.68671.45602.09732.11751.01102.32263.19652.52761.37652.2793
H92.52752.45343.59532.65322.11602.92692.73941.01103.19403.97373.51911.98642.4152
N104.30034.73764.93634.69482.81072.78822.82672.32263.19401.01011.00991.38442.2877
H115.29725.70615.94475.64403.81763.74063.80083.19653.97371.01011.70272.00402.4481
H124.06164.70564.54524.41492.57952.18352.69262.52763.51911.00991.70272.07213.1418
C133.75903.99414.62744.04032.50922.88202.79001.37651.98641.38442.00402.07211.2199
O144.67554.71455.63094.87303.60424.06923.85382.27932.41522.28772.44813.14181.2199

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 108.751 C1 C5 H7 110.119
C1 C5 N8 109.781 H2 C1 H3 108.006
H2 C1 H4 108.568 H2 C1 C5 110.764
H3 C1 H4 108.497 H3 C1 C5 110.373
H4 C1 C5 110.553 C5 N8 H9 116.980
C5 N8 C13 124.696 H6 C5 H7 107.261
H6 C5 N8 109.641 H7 C5 N8 111.223
N8 C13 N10 114.541 N8 C13 O14 122.658
H9 N8 C13 111.701 N10 C13 O14 122.785
H11 N10 H12 114.897 H11 N10 C13 112.693
H12 N10 C13 119.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability