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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: B2PLYP=FULLultrafine/6-31G**

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=FULLultrafine/6-31G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-31G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/6-31G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-31G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULLultrafine/6-31G**
 hartrees
Energy at 0K-225.059934
Energy at 298.15K 
HF Energy-224.842669
Nuclear repulsion energy123.680635
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=FULLultrafine/6-31G**
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 3822 3822 50.67      
2 A1 3682 3682 7.29      
3 A1 1831 1831 408.14      
4 A1 1652 1652 1.79      
5 A1 1157 1157 0.16      
6 A1 982 982 7.72      
7 A1 480 480 2.89      
8 A2 376 376 0.00      
9 A2 439i 439i 0.00      
10 B1 766 766 12.56      
11 B1 575 575 12.35      
12 B1 328i 328i 547.96      
13 B2 3819 3819 45.02      
14 B2 3673 3673 68.09      
15 B2 1650 1650 287.95      
16 B2 1448 1448 207.46      
17 B2 999 999 11.32      
18 B2 562 562 14.93      

Unscaled Zero Point Vibrational Energy (zpe) 13352.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13352.3 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=FULLultrafine/6-31G**
ABC
0.37296 0.34706 0.17977

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.142
O2 0.000 0.000 1.367
N3 0.000 1.158 -0.600
N4 0.000 -1.158 -0.600
H5 0.000 2.020 -0.089
H6 0.000 1.183 -1.602
H7 0.000 -2.020 -0.089
H8 0.000 -1.183 -1.602

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.22491.37471.37472.03332.10772.03332.1077
O21.22492.28202.28202.48973.19622.48973.1962
N31.37472.28202.31501.00291.00283.21862.5465
N41.37472.28202.31503.21862.54651.00291.0028
H52.03332.48971.00293.21861.72984.04043.5433
H62.10773.19621.00282.54651.72983.54332.3668
H72.03332.48973.21861.00294.04043.54331.7298
H82.10773.19622.54651.00283.54332.36681.7298

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.688 C1 N3 H6 124.128
C1 N4 H7 116.688 C1 N4 H8 124.128
O2 C1 N3 122.650 O2 C1 N4 122.650
N3 C1 N4 114.701 H5 N3 H6 119.184
H7 N4 H8 119.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability