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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-302.212977
Energy at 298.15K-302.223167
Nuclear repulsion energy242.364229
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3690 3561 29.38      
2 A 3586 3460 26.23      
3 A 3564 3439 23.75      
4 A 3132 3022 20.93      
5 A 3125 3015 28.78      
6 A 3059 2952 15.30      
7 A 3018 2912 40.92      
8 A 2994 2889 40.80      
9 A 1763 1701 356.03      
10 A 1670 1611 119.62      
11 A 1594 1538 8.28      
12 A 1572 1517 9.42      
13 A 1562 1507 7.58      
14 A 1478 1426 8.36      
15 A 1456 1405 1.34      
16 A 1411 1362 279.59      
17 A 1381 1333 92.84      
18 A 1331 1284 0.67      
19 A 1203 1161 16.84      
20 A 1196 1154 2.45      
21 A 1110 1071 22.46      
22 A 1058 1020 17.56      
23 A 981 946 0.89      
24 A 901 870 3.22      
25 A 864 834 0.75      
26 A 796 768 101.49      
27 A 565 545 10.28      
28 A 551 532 138.33      
29 A 538 519 14.85      
30 A 458 442 1.55      
31 A 366 353 1.05      
32 A 337 325 229.24      
33 A 269 259 1.89      
34 A 198 191 5.16      
35 A 72 69 1.18      
36 A 27 26 5.64      

Unscaled Zero Point Vibrational Energy (zpe) 26437.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 25509.8 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 B3LYP/3-21G
ABC
0.28323 0.06592 0.05460

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.638 -0.240 0.031
H2 2.752 -0.874 -0.855
H3 3.465 0.475 0.055
H4 2.693 -0.869 0.926
C5 1.289 0.498 -0.015
H6 1.201 1.145 0.870
H7 1.265 1.145 -0.906
N8 0.188 -0.469 -0.048
H9 0.406 -1.459 -0.068
N10 -1.451 1.180 0.015
H11 -2.428 1.435 0.045
H12 -0.756 1.908 -0.065
C13 -1.164 -0.172 -0.004
O14 -2.042 -1.049 0.019

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09521.09411.09501.53872.16512.16372.46132.54494.32815.33574.01793.80214.7496
H21.09521.77691.78162.17473.07542.50862.71782.54274.75795.74244.54674.06794.8764
H31.09411.77691.77802.17792.49832.49283.41183.62154.96645.97104.45974.67435.7148
H41.09501.78161.77802.17392.50673.07412.71652.56244.71115.68394.53754.02764.8245
C51.53872.17472.17792.17391.10001.10091.46542.14732.82303.83352.48442.54223.6731
H62.16513.07542.49832.50671.10001.77712.11472.87892.78603.73272.29942.84394.0069
H72.16372.50862.49283.07411.10091.77712.12152.86712.86753.82432.31802.90624.0754
N82.46132.71783.41182.71651.46542.11472.12151.01312.32593.23752.55821.38502.3060
H92.54492.54273.62152.56242.14732.87892.86711.01313.22714.05173.56162.03012.4835
N104.32814.75794.96644.71112.82302.78602.86752.32593.22711.01061.00961.38232.3064
H115.33575.74245.97105.68393.83353.73273.82433.23754.05171.01061.74102.04572.5144
H124.01794.54674.45974.53752.48442.29942.31802.55823.56161.00961.74102.12083.2262
C133.80214.06794.67434.02762.54222.84392.90621.38502.03011.38232.04572.12081.2418
O144.74964.87645.71484.82453.67314.00694.07542.30602.48352.30642.51443.22621.2418

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 109.147 C1 C5 H7 108.988
C1 C5 N8 110.011 H2 C1 H3 108.513
H2 C1 H4 108.861 H2 C1 C5 110.177
H3 C1 H4 108.622 H3 C1 C5 110.493
H4 C1 C5 110.127 C5 N8 H9 118.953
C5 N8 C13 126.206 H6 C5 H7 107.693
H6 C5 N8 110.228 H7 C5 N8 110.723
N8 C13 N10 114.388 N8 C13 O14 122.678
H9 N8 C13 114.795 N10 C13 O14 122.934
H11 N10 H12 119.041 H11 N10 C13 116.633
H12 N10 C13 124.174
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.576     -0.434
2 H 0.203     0.130
3 H 0.201     0.116
4 H 0.204     0.131
5 C -0.195     0.239
6 H 0.196     0.026
7 H 0.192     0.024
8 N -0.709     -0.643
9 H 0.319     0.340
10 N -0.780     -0.870
11 H 0.318     0.386
12 H 0.307     0.360
13 C 0.862     0.763
14 O -0.541     -0.568


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.264 2.859 -0.115 4.341
CHELPG        
AIM        
ESP 3.277 2.848 -0.118 4.343


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.411 -7.178 0.097
y -7.178 -33.312 -0.059
z 0.097 -0.059 -37.786
Traceless
 xyz
x -2.862 -7.178 0.097
y -7.178 4.786 -0.059
z 0.097 -0.059 -1.925
Polar
3z2-r2-3.849
x2-y2-5.098
xy-7.178
xz0.097
yz-0.059


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.297 0.211 -0.098
y 0.211 6.822 -0.005
z -0.098 -0.005 3.986


<r2> (average value of r2) Å2
<r2> 204.998
(<r2>)1/2 14.318