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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-56.070052
Energy at 298.15K-56.080905
Nuclear repulsion energy136.179243
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 HF/CEP-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 4033 3635 55.72      
2 A 3899 3515 44.85      
3 A 3876 3494 55.94      
4 A 3306 2980 75.66      
5 A 3304 2978 104.74      
6 A 3248 2927 50.23      
7 A 3219 2902 27.95      
8 A 3208 2891 83.51      
9 A 1829 1648 454.50      
10 A 1778 1603 392.67      
11 A 1678 1512 4.06      
12 A 1639 1477 18.04      
13 A 1630 1470 8.12      
14 A 1605 1446 40.44      
15 A 1566 1411 362.50      
16 A 1565 1411 55.43      
17 A 1504 1356 33.20      
18 A 1422 1282 0.01      
19 A 1299 1171 18.80      
20 A 1285 1158 6.26      
21 A 1212 1092 33.26      
22 A 1162 1047 13.15      
23 A 1068 963 1.09      
24 A 965 870 3.19      
25 A 904 815 1.13      
26 A 850 766 199.20      
27 A 615 554 287.03      
28 A 608 548 10.88      
29 A 587 529 10.12      
30 A 571 515 26.15      
31 A 475 428 182.60      
32 A 384 346 0.11      
33 A 276 249 0.13      
34 A 211 191 7.88      
35 A 127 114 0.98      
36 A 82 74 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 28493.2 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 25683.7 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 HF/CEP-31G
ABC
0.28466 0.06554 0.05436

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.621 -0.210 0.001
H2 2.727 -0.837 -0.885
H3 3.434 0.515 0.001
H4 2.726 -0.837 0.886
C5 1.262 0.513 -0.000
H6 1.189 1.151 0.881
H7 1.191 1.152 -0.881
N8 0.171 -0.471 -0.001
H9 0.389 -1.446 -0.001
N10 -1.545 1.132 0.000
H11 -2.523 1.322 0.000
H12 -0.902 1.889 -0.001
C13 -1.175 -0.195 -0.000
O14 -2.032 -1.107 0.001

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.08991.08881.08991.53992.16312.16332.46432.55174.37715.36784.10113.79594.7388
H21.08991.76421.77012.17993.07192.51342.72922.57274.78655.74554.62424.05184.8481
H31.08881.76421.76422.17202.49312.49313.40853.62155.01676.01124.54794.66265.7011
H41.08991.77011.76422.18002.51323.07202.72942.57264.78565.74464.62394.05104.8468
C51.53992.17992.17202.18001.09091.09091.46882.14412.87413.87032.56412.53703.6702
H62.16313.07192.49312.51321.09091.76272.10922.85722.87303.81962.38652.85994.0314
H72.16332.51342.49313.07201.09091.76272.10912.85762.87443.82082.38682.86134.0331
N82.46432.72923.40852.72941.46882.10922.10910.99872.34793.23622.59261.37342.2927
H92.55172.57273.62152.57262.14412.85722.85760.99873.22214.01743.57602.00182.4442
N104.37714.78655.01674.78562.87412.87302.87442.34793.22210.99650.99411.37782.2911
H115.36785.74556.01125.74463.87033.81963.82083.23624.01740.99651.71802.03022.4784
H124.10114.62424.54794.62392.56412.38652.38682.59263.57600.99411.71802.10273.2026
C133.79594.05184.66264.05102.53702.85992.86131.37342.00181.37782.03022.10271.2514
O144.73884.84815.70114.84683.67024.03144.03312.29272.44422.29112.47843.20261.2514

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 109.432 C1 C5 H7 109.442
C1 C5 N8 109.957 H2 C1 H3 108.137
H2 C1 H4 108.594 H2 C1 C5 110.814
H3 C1 H4 108.137 H3 C1 C5 110.251
H4 C1 C5 110.817 C5 N8 H9 119.444
C5 N8 C13 126.377 H6 C5 H7 107.785
H6 C5 N8 110.095 H7 C5 N8 110.094
N8 C13 N10 117.174 N8 C13 O14 121.663
H9 N8 C13 114.179 N10 C13 O14 121.164
H11 N10 H12 119.319 H11 N10 C13 116.615
H12 N10 C13 124.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.278      
2 H 0.111      
3 H 0.126      
4 H 0.111      
5 C -0.122      
6 H 0.115      
7 H 0.115      
8 N -0.386      
9 H 0.383      
10 N -0.590      
11 H 0.381      
12 H 0.368      
13 C -0.009      
14 O -0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.331 3.950 -0.002 5.862
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.297 -9.686 0.010
y -9.686 -35.709 -0.005
z 0.010 -0.005 -38.877
Traceless
 xyz
x -4.004 -9.686 0.010
y -9.686 4.378 -0.005
z 0.010 -0.005 -0.374
Polar
3z2-r2-0.749
x2-y2-5.588
xy-9.686
xz0.010
yz-0.005


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.877 0.359 -0.001
y 0.359 6.701 -0.000
z -0.001 -0.000 4.582


<r2> (average value of r2) Å2
<r2> 168.264
(<r2>)1/2 12.972