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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-311G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at B2PLYP=FULL/6-311G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-225.150404
Energy at 298.15K 
HF Energy-224.902277
Nuclear repulsion energy123.854072
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 B2PLYP=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 3791 3791 51.57      
2 A1 3659 3659 7.08      
3 A1 1812 1812 448.80      
4 A1 1640 1640 0.93      
5 A1 1154 1154 0.53      
6 A1 974 974 9.71      
7 A1 482 482 2.51      
8 A2 358 358 0.00      
9 A2 456i 456i 0.00      
10 B1 773 773 5.77      
11 B1 564 564 10.27      
12 B1 353i 353i 481.21      
13 B2 3789 3789 40.40      
14 B2 3650 3650 66.28      
15 B2 1635 1635 274.17      
16 B2 1431 1431 226.89      
17 B2 995 995 14.99      
18 B2 567 567 14.41      

Unscaled Zero Point Vibrational Energy (zpe) 13232.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13232.6 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 B2PLYP=FULL/6-311G**
ABC
0.37470 0.34733 0.18025

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=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 1.363
N3 0.000 1.157 -0.599
N4 0.000 -1.157 -0.599
H5 0.000 2.022 -0.091
H6 0.000 1.179 -1.601
H7 0.000 -2.022 -0.091
H8 0.000 -1.179 -1.601

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.21791.37541.37542.03542.10672.03542.1067
O21.21792.27732.27732.48993.18972.48993.1897
N31.37542.27732.31411.00281.00253.21912.5420
N41.37542.27732.31413.21912.54201.00281.0025
H52.03542.48991.00283.21911.72954.04343.5391
H62.10673.18971.00252.54201.72953.53912.3581
H72.03542.48993.21911.00284.04343.53911.7295
H82.10673.18972.54201.00253.53912.35811.7295

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.835 C1 N3 H6 123.983
C1 N4 H7 116.835 C1 N4 H8 123.983
O2 C1 N3 122.727 O2 C1 N4 122.727
N3 C1 N4 114.545 H5 N3 H6 119.181
H7 N4 H8 119.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability