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All results from a given calculation for CHONH2 (formamide)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no Planar 1A'
1 2 yes Non-Planar 1A

Conformer 1 (Planar)

Jump to S1C2
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-169.723446
Energy at 298.15K 
HF Energy-169.564991
Nuclear repulsion energy70.989847
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3754 3560 41.25      
2 A' 3618 3431 39.37      
3 A' 3014 2858 108.60      
4 A' 1833 1739 344.22      
5 A' 1652 1567 61.79      
6 A' 1447 1372 5.39      
7 A' 1294 1228 97.91      
8 A' 1068 1012 3.23      
9 A' 566 536 11.58      
10 A" 1053 999 0.19      
11 A" 655 621 19.94      
12 A" 68i 64i 279.89      

Unscaled Zero Point Vibrational Energy (zpe) 9942.3 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 9429.3 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=FULL/6-31G*
ABC
2.44561 0.37604 0.32592

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.421 0.000
O2 1.204 0.231 0.000
N3 -0.943 -0.560 0.000
H4 -0.451 1.430 0.000
H5 -0.647 -1.526 0.000
H6 -1.929 -0.350 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21891.36131.10502.05142.0769
O21.21892.28842.04372.55183.1858
N31.36132.28842.05011.00951.0074
H41.10502.04372.05012.96182.3129
H52.05142.55181.00952.96181.7389
H62.07693.18581.00742.31291.7389

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.080 C1 N3 H6 121.802
O2 C1 N3 124.885 O2 C1 H4 123.077
N3 C1 H4 112.037 H5 N3 H6 119.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-169.723448
Energy at 298.15K-169.726955
HF Energy-169.564979
Nuclear repulsion energy70.986556
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3751 3558 40.55      
2 A 3616 3429 38.63      
3 A 3015 2859 108.13      
4 A 1832 1738 342.19      
5 A 1653 1568 60.97      
6 A 1447 1372 5.29      
7 A 1295 1228 97.40      
8 A 1070 1015 3.23      
9 A 1052 998 0.29      
10 A 654 620 22.35      
11 A 566 537 11.51      
12 A 104 99 280.43      

Unscaled Zero Point Vibrational Energy (zpe) 10027.2 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 9509.8 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/6-31G*
ABC
2.44261 0.37608 0.32600

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.160 0.389 0.001
O2 1.201 -0.246 0.002
N3 -1.086 -0.159 -0.016
H4 0.128 1.494 0.000
H5 -1.177 -1.163 0.033
H6 -1.915 0.410 0.057

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21901.36161.10492.04932.0755
O21.21902.28862.04342.54883.1839
N31.36162.28862.05111.00971.0075
H41.10492.04342.05112.96072.3135
H52.04932.54881.00972.96071.7376
H62.07553.18391.00752.31351.7376

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.836 C1 N3 H6 121.629
O2 C1 N3 124.860 O2 C1 H4 123.032
N3 C1 H4 112.104 H5 N3 H6 118.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability