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All results from a given calculation for CHONH2 (formamide)

using model chemistry: CID/6-31G

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 CID/6-31G
 hartrees
Energy at 0K-169.154540
Energy at 298.15K-169.158553
HF Energy-168.853470
Nuclear repulsion energy70.426047
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 CID/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' 3826 3578 42.03      
2 A' 3688 3449 48.97      
3 A' 3104 2903 77.83      
4 A' 1792 1676 391.71      
5 A' 1736 1624 32.85      
6 A' 1477 1381 16.97      
7 A' 1330 1243 139.86      
8 A' 1115 1043 7.21      
9 A' 583 545 14.28      
10 A" 1071 1002 0.00      
11 A" 652 610 195.92      
12 A" 492 460 284.13      

Unscaled Zero Point Vibrational Energy (zpe) 10432.6 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 9756.5 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 CID/6-31G
ABC
2.41044 0.36948 0.32037

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.426 0.000
O2 1.221 0.207 0.000
N3 -0.962 -0.546 0.000
H4 -0.405 1.446 0.000
H5 -0.689 -1.514 0.000
H6 -1.940 -0.320 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.24071.36781.09752.05862.0787
O21.24072.30992.04432.57123.2052
N31.36782.30992.06851.00601.0037
H41.09752.04432.06852.97362.3399
H52.05862.57121.00602.97361.7300
H62.07873.20521.00372.33991.7300

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.496 C1 N3 H6 121.696
O2 C1 N3 124.569 O2 C1 H4 121.805
N3 C1 H4 113.626 H5 N3 H6 118.809
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-169.154540
Energy at 298.15K-169.158554
HF Energy-168.853464
Nuclear repulsion energy70.428410
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 CID/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 3826 3578 42.19      
2 A 3688 3449 48.99      
3 A 3103 2902 77.61      
4 A 1791 1675 392.68      
5 A 1736 1624 31.85      
6 A 1476 1381 17.20      
7 A 1331 1245 139.61      
8 A 1115 1043 6.92      
9 A 1071 1002 0.00      
10 A 653 611 198.67      
11 A 583 545 14.32      
12 A 491 459 281.20      

Unscaled Zero Point Vibrational Energy (zpe) 10432.9 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 9756.8 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 CID/6-31G
ABC
2.40888 0.36963 0.32046

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.154 0.397 -0.000
O2 1.213 -0.249 0.000
N3 -1.095 -0.160 -0.000
H4 0.147 1.495 0.000
H5 -1.189 -1.162 0.001
H6 -1.925 0.403 0.001

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.24111.36721.09772.05802.0786
O21.24112.30942.04432.57003.2051
N31.36722.30942.06911.00611.0036
H41.09772.04432.06912.97402.3416
H52.05802.57001.00612.97401.7297
H62.07863.20511.00362.34161.7297

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.472 C1 N3 H6 121.746
O2 C1 N3 124.535 O2 C1 H4 121.754
N3 C1 H4 113.711 H5 N3 H6 118.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability