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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-300.966089
Energy at 298.15K-300.976451
HF Energy-300.363117
Nuclear repulsion energy241.423498
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 MP2/3-21G
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 3689 3521 22.80      
2 A 3591 3428 26.11      
3 A 3559 3397 24.32      
4 A 3173 3028 23.13      
5 A 3167 3023 22.92      
6 A 3107 2966 15.62      
7 A 3092 2951 11.85      
8 A 3046 2907 45.20      
9 A 1767 1687 292.27      
10 A 1711 1633 116.58      
11 A 1634 1560 6.47      
12 A 1608 1535 6.15      
13 A 1597 1525 6.05      
14 A 1502 1434 6.00      
15 A 1484 1416 1.96      
16 A 1421 1356 53.29      
17 A 1395 1332 305.11      
18 A 1354 1292 2.15      
19 A 1229 1173 5.42      
20 A 1211 1156 17.13      
21 A 1136 1084 49.99      
22 A 1062 1014 19.87      
23 A 975 931 1.77      
24 A 899 858 2.76      
25 A 870 830 2.07      
26 A 775 740 85.06      
27 A 585 558 135.68      
28 A 564 538 70.89      
29 A 548 524 30.45      
30 A 480 458 21.96      
31 A 378 361 100.86      
32 A 361 345 81.35      
33 A 287 274 2.52      
34 A 206 197 3.30      
35 A 101 96 6.07      
36 A 23 22 2.15      

Unscaled Zero Point Vibrational Energy (zpe) 26792.3 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 25573.3 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 MP2/3-21G
ABC
0.26951 0.06639 0.05517

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.613 -0.255 0.162
H2 -2.523 -0.905 1.038
H3 -3.439 0.444 0.323
H4 -2.844 -0.869 -0.715
C5 -1.292 0.515 -0.061
H6 -1.411 1.191 -0.920
H7 -1.062 1.126 0.820
N8 -0.187 -0.442 -0.289
H9 -0.413 -1.429 -0.358
N10 1.434 1.191 0.092
H11 2.412 1.411 0.236
H12 0.881 1.872 -0.413
C13 1.156 -0.179 -0.025
O14 2.021 -1.070 0.114

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09421.09451.09491.54512.16922.17872.47462.54704.29875.29524.13123.77404.7053
H21.09421.78021.78252.17623.07552.51092.72592.58354.57665.51024.62623.89684.6395
H31.09451.78021.77702.18232.49322.52233.42603.62354.93605.93174.60974.64995.6701
H41.09491.78251.77702.17972.51763.08402.72442.51984.81655.80804.63484.11694.9390
C51.54512.17622.18232.17971.09971.09641.47962.15382.81333.82312.58662.54443.6769
H62.16923.07552.49322.51761.09971.77542.13632.85933.02024.00072.44473.04414.2382
H72.17872.51092.52233.08401.09641.77542.11072.88722.60143.53482.41952.70813.8505
N82.47462.72593.42602.72441.47962.13632.11071.01452.33263.23552.55171.39352.3307
H92.54702.58353.62352.51982.15382.85932.88721.01453.23704.04993.54572.03322.5051
N104.29874.57664.93604.81652.81333.02022.60142.33263.23701.01291.01211.40262.3361
H115.29525.51025.93175.80803.82314.00073.53483.23554.04991.01291.72562.04352.5151
H124.13124.62624.60974.63482.58662.44472.41952.55173.54571.01211.72562.10503.1988
C133.77403.89684.64994.11692.54443.04412.70811.39352.03321.40262.04352.10501.2501
O144.70534.63955.67014.93903.67694.23823.85052.33072.50512.33612.51513.19881.2501

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 109.047 C1 C5 H7 109.979
C1 C5 N8 109.777 H2 C1 H3 108.849
H2 C1 H4 109.030 H2 C1 C5 109.905
H3 C1 H4 108.512 H3 C1 C5 110.368
H4 C1 C5 110.140 C5 N8 H9 118.234
C5 N8 C13 124.616 H6 C5 H7 107.890
H6 C5 N8 110.983 H7 C5 N8 109.139
N8 C13 N10 113.068 N8 C13 O14 123.588
H9 N8 C13 114.285 N10 C13 O14 123.336
H11 N10 H12 116.895 H11 N10 C13 114.596
H12 N10 C13 120.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.555     -0.407
2 H 0.197     0.120
3 H 0.194     0.094
4 H 0.192     0.111
5 C -0.178     0.451
6 H 0.181     -0.040
7 H 0.206     -0.023
8 N -0.727     -0.802
9 H 0.323     0.358
10 N -0.784     -0.971
11 H 0.318     0.398
12 H 0.310     0.391
13 C 0.840     0.889
14 O -0.515     -0.567


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.802 2.534 -0.671 3.837
CHELPG        
AIM        
ESP -2.801 2.526 -0.672 3.831


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.508 6.904 -0.873
y 6.904 -34.801 -0.737
z -0.873 -0.737 -38.336
Traceless
 xyz
x -1.940 6.904 -0.873
y 6.904 3.621 -0.737
z -0.873 -0.737 -1.682
Polar
3z2-r2-3.363
x2-y2-3.708
xy6.904
xz-0.873
yz-0.737


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.110 -0.362 0.544
y -0.362 6.761 -0.061
z 0.544 -0.061 4.082


<r2> (average value of r2) Å2
<r2> 205.002
(<r2>)1/2 14.318