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

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-303.913682
Energy at 298.15K-303.924024
Nuclear repulsion energy243.960156
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/6-31G(2df,p)
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 3696 3566 27.54      
2 A 3633 3506 27.02      
3 A 3580 3454 17.36      
4 A 3124 3014 21.02      
5 A 3109 3000 28.26      
6 A 3040 2933 18.16      
7 A 3014 2909 31.02      
8 A 2987 2883 42.49      
9 A 1810 1747 434.90      
10 A 1624 1567 130.47      
11 A 1533 1479 3.71      
12 A 1503 1451 3.45      
13 A 1493 1441 5.29      
14 A 1456 1405 18.12      
15 A 1427 1378 245.20      
16 A 1413 1363 20.10      
17 A 1365 1317 26.51      
18 A 1300 1254 2.77      
19 A 1201 1159 17.60      
20 A 1171 1130 1.15      
21 A 1127 1088 30.66      
22 A 1064 1027 14.15      
23 A 990 956 1.80      
24 A 896 864 1.75      
25 A 821 792 0.52      
26 A 778 751 47.43      
27 A 590 570 57.96      
28 A 558 539 39.10      
29 A 542 523 88.61      
30 A 486 469 31.58      
31 A 386 373 94.29      
32 A 360 347 0.39      
33 A 267 257 2.58      
34 A 194 188 2.95      
35 A 107 104 5.91      
36 A 44 43 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 26344.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25422.2 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/6-31G(2df,p)
ABC
0.28515 0.06681 0.05553

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.622 -0.224 0.025
H2 -2.682 -0.982 0.814
H3 -3.440 0.485 0.178
H4 -2.775 -0.720 -0.939
C5 -1.277 0.495 0.061
H6 -1.270 1.272 -0.717
H7 -1.152 1.009 1.025
N8 -0.192 -0.445 -0.172
H9 -0.397 -1.426 -0.060
N10 1.472 1.171 0.062
H11 2.460 1.337 -0.056
H12 0.878 1.838 -0.406
C13 1.151 -0.178 -0.018
O14 1.988 -1.057 0.066

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09521.09301.09441.52602.14892.16382.44872.53034.32585.31714.08593.77394.6858
H21.09521.76911.77462.17263.06852.51942.73102.48584.73855.70664.70254.00354.7303
H31.09301.76911.77262.16592.47552.49473.39683.60074.96095.96534.56274.64255.6443
H41.09441.77461.77262.17212.50573.07842.70842.63094.75505.69264.49114.06834.8796
C51.52602.17262.16592.17211.09991.09931.45482.11642.83103.83222.58232.52083.6158
H62.14893.06852.47552.50571.09991.76572.10022.91092.85283.78892.24372.90754.0817
H72.16382.51942.49473.07841.09931.76572.11402.77082.80013.78442.61872.79313.8800
N82.44872.73103.39682.70841.45482.10022.11401.00822.33133.19662.53261.37762.2769
H92.53032.48583.60072.63092.11642.91092.77081.00823.20223.97423.52171.98932.4175
N104.32584.73854.96094.75502.83102.85282.80012.33133.20221.00841.00831.38882.2875
H115.31715.70665.96535.69263.83223.78893.78443.19663.97421.00841.69582.00182.4428
H124.08594.70254.56274.49112.58232.24372.61872.53263.52171.00831.69582.07103.1369
C133.77394.00354.64254.06832.52082.90752.79311.37761.98931.38882.00182.07101.2175
O144.68584.73035.64434.87963.61584.08173.88002.27692.41752.28752.44283.13691.2175

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 108.760 C1 C5 H7 109.958
C1 C5 N8 110.447 H2 C1 H3 107.895
H2 C1 H4 108.282 H2 C1 C5 110.894
H3 C1 H4 108.266 H3 C1 C5 110.496
H4 C1 C5 110.902 C5 N8 H9 117.313
C5 N8 C13 125.724 H6 C5 H7 106.813
H6 C5 N8 109.809 H7 C5 N8 110.962
N8 C13 N10 114.854 N8 C13 O14 122.538
H9 N8 C13 112.052 N10 C13 O14 122.594
H11 N10 H12 114.465 H11 N10 C13 112.271
H12 N10 C13 118.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.403      
2 H 0.129      
3 H 0.128      
4 H 0.132      
5 C -0.117      
6 H 0.102      
7 H 0.117      
8 N -0.321      
9 H 0.247      
10 N -0.547      
11 H 0.260      
12 H 0.248      
13 C 0.421      
14 O -0.398      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.009 2.506 -0.619 3.965
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.918 6.670 -1.487
y 6.670 -34.674 -1.655
z -1.487 -1.655 -37.322
Traceless
 xyz
x -1.920 6.670 -1.487
y 6.670 2.946 -1.655
z -1.487 -1.655 -1.026
Polar
3z2-r2-2.052
x2-y2-3.244
xy6.670
xz-1.487
yz-1.655


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.469 -0.094 0.108
y -0.094 7.711 -0.092
z 0.108 -0.092 5.342


<r2> (average value of r2) Å2
<r2> 202.636
(<r2>)1/2 14.235