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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes C2V 1A1

Conformer 1 (C2)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at wB97X-D/STO-3G
Rotational Constants (cm-1) from geometry optimized at wB97X-D/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at wB97X-D/STO-3G
Rotational Constants (cm-1) from geometry optimized at wB97X-D/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-222.191431
Energy at 298.15K 
HF Energy-222.191431
Nuclear repulsion energy119.896969
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 wB97X-D/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 4005 4005 10.52      
2 A1 3788 3788 12.80      
3 A1 1938 1938 162.17      
4 A1 1735 1735 4.10      
5 A1 1157 1157 1.95      
6 A1 977 977 3.56      
7 A1 463 463 2.75      
8 A2 358 358 0.00      
9 A2 535i 535i 0.00      
10 B1 673 673 9.55      
11 B1 487 487 7.86      
12 B1 462i 462i 587.55      
13 B2 4003 4003 11.09      
14 B2 3780 3780 48.07      
15 B2 1717 1717 88.51      
16 B2 1435 1435 238.94      
17 B2 1010 1010 4.15      
18 B2 520 520 5.51      

Unscaled Zero Point Vibrational Energy (zpe) 13524.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13524.9 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 wB97X-D/STO-3G
ABC
0.34265 0.33209 0.16864

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.174
O2 0.000 0.000 1.423
N3 0.000 1.182 -0.628
N4 0.000 -1.182 -0.628
H5 0.000 2.100 -0.161
H6 0.000 1.168 -1.659
H7 0.000 -2.100 -0.161
H8 0.000 -1.168 -1.659

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.24911.42861.42862.12652.17322.12652.1732
O21.24912.36762.36762.63043.29572.63043.2957
N31.42862.36762.36391.03011.03063.31502.5656
N41.42862.36762.36393.31502.56561.03011.0306
H52.12652.63041.03013.31501.76444.19993.5945
H62.17323.29571.03062.56561.76443.59452.3351
H72.12652.63043.31501.03014.19993.59451.7644
H82.17323.29572.56561.03063.59452.33511.7644

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.846 C1 N3 H6 123.369
C1 N4 H7 118.846 C1 N4 H8 123.369
O2 C1 N3 124.170 O2 C1 N4 124.170
N3 C1 N4 111.660 H5 N3 H6 117.785
H7 N4 H8 117.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306      
2 O -0.270      
3 N -0.414      
4 N -0.414      
5 H 0.204      
6 H 0.192      
7 H 0.204      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.128 3.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.732 0.000 0.000
y 0.000 -15.564 0.000
z 0.000 0.000 -21.067
Traceless
 xyz
x -4.417 0.000 0.000
y 0.000 6.336 0.000
z 0.000 0.000 -1.919
Polar
3z2-r2-3.838
x2-y2-7.168
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.417 0.000 0.000
y 0.000 3.105 0.000
z 0.000 0.000 3.353


<r2> (average value of r2) Å2
<r2> 70.930
(<r2>)1/2 8.422