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All results from a given calculation for CHONH2 (formamide)

using model chemistry: B2PLYP=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

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

Conformer 1 (Planar)

Jump to S1C2
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-169.859362
Energy at 298.15K-169.863059
HF Energy-169.643190
Nuclear repulsion energy71.317473
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/aug-cc-pVTZ
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' 3744 3592 47.45      
2 A' 3603 3457 39.99      
3 A' 2988 2867 85.92      
4 A' 1780 1708 419.85      
5 A' 1628 1562 50.69      
6 A' 1424 1366 6.73      
7 A' 1273 1221 112.86      
8 A' 1055 1012 4.88      
9 A' 567 544 10.60      
10 A" 1052 1009 3.21      
11 A" 642 616 13.57      
12 A" 220 211 205.22      

Unscaled Zero Point Vibrational Energy (zpe) 9986.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9581.3 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/aug-cc-pVTZ
ABC
2.46290 0.37965 0.32895

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.419 0.000
O2 1.198 0.229 0.000
N3 -0.939 -0.559 0.000
H4 -0.443 1.426 0.000
H5 -0.650 -1.521 0.000
H6 -1.917 -0.339 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21271.35621.09962.04642.0613
O21.21272.27772.03042.54523.1660
N31.35622.27772.04611.00461.0020
H41.09962.03042.04612.95432.2996
H52.04642.54521.00462.95431.7327
H62.06133.16601.00202.29961.7327

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.437 C1 N3 H6 121.146
O2 C1 N3 124.817 O2 C1 H4 122.747
N3 C1 H4 112.436 H5 N3 H6 119.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-169.859363
Energy at 298.15K-169.863051
HF Energy-169.643189
Nuclear repulsion energy71.321129
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/aug-cc-pVTZ
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 3744 3592 47.50      
2 A 3604 3458 39.95      
3 A 2989 2868 85.51      
4 A 1779 1707 420.09      
5 A 1628 1562 50.38      
6 A 1423 1365 6.75      
7 A 1274 1222 112.72      
8 A 1055 1012 4.74      
9 A 1052 1009 3.22      
10 A 641 615 14.16      
11 A 567 544 10.63      
12 A 214 205 204.44      

Unscaled Zero Point Vibrational Energy (zpe) 9984.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9579.2 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/aug-cc-pVTZ
ABC
2.46235 0.37975 0.32901

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.160 0.388 0.000
O2 -1.194 -0.245 -0.000
N3 1.081 -0.158 -0.000
H4 -0.136 1.487 0.000
H5 1.180 -1.158 0.000
H6 1.901 0.417 -0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21291.35591.09952.04582.0614
O21.21292.27742.03022.54423.1659
N31.35592.27742.04631.00461.0020
H41.09952.03022.04632.95422.3006
H52.04582.54421.00462.95421.7325
H62.06143.16591.00202.30061.7325

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.407 C1 N3 H6 121.185
O2 C1 N3 124.799 O2 C1 H4 122.718
N3 C1 H4 112.483 H5 N3 H6 119.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability