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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: MP3=FULL/6-311G*

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 MP3=FULL/6-311G*
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at MP3=FULL/6-311G*
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at MP3=FULL/6-311G*
 hartrees
Energy at 0K-224.786918
Energy at 298.15K 
HF Energy-224.038628
Nuclear repulsion energy124.342067
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 MP3=FULL/6-311G*
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 3852 3852 50.87      
2 A1 3727 3727 10.24      
3 A1 1888 1888 552.20      
4 A1 1712 1712 1.85      
5 A1 1195 1195 0.40      
6 A1 1004 1004 11.32      
7 A1 495 495 2.76      
8 A2 362 362 0.00      
9 A2 539i 539i 0.00      
10 B1 796 796 7.67      
11 B1 571 571 12.59      
12 B1 434i 434i 605.21      
13 B2 3850 3850 31.16      
14 B2 3719 3719 72.12      
15 B2 1706 1706 301.02      
16 B2 1482 1482 250.01      
17 B2 1033 1033 10.34      
18 B2 580 580 15.92      

Unscaled Zero Point Vibrational Energy (zpe) 13499.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13499.7 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 MP3=FULL/6-311G*
ABC
0.37897 0.34885 0.18164

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.145
O2 0.000 0.000 1.355
N3 0.000 1.154 -0.595
N4 0.000 -1.154 -0.595
H5 0.000 2.018 -0.090
H6 0.000 1.178 -1.595
H7 0.000 -2.018 -0.090
H8 0.000 -1.178 -1.595

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.20961.37141.37142.03132.10082.03132.1008
O21.20962.26602.26602.48163.17562.48163.1756
N31.37142.26602.30881.00000.99953.21192.5373
N41.37142.26602.30883.21192.53731.00000.9995
H52.03132.48161.00003.21191.72274.03513.5317
H62.10083.17560.99952.53731.72273.53172.3557
H72.03132.48163.21191.00004.03513.53171.7227
H82.10083.17562.53730.99953.53172.35571.7227

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.001 C1 N3 H6 124.015
C1 N4 H7 117.001 C1 N4 H8 124.015
O2 C1 N3 122.672 O2 C1 N4 122.672
N3 C1 N4 114.656 H5 N3 H6 118.984
H7 N4 H8 118.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability