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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP4/TZVP

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 MP4/TZVP
 hartrees
Energy at 0K-169.549356
Energy at 298.15K 
HF Energy-168.994760
Nuclear repulsion energy70.884899
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 MP4/TZVP
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' 3753 3614        
2 A' 3607 3473        
3 A' 2985 2874        
4 A' 1760 1695        
5 A' 1625 1565        
6 A' 1430 1377        
7 A' 1265 1218        
8 A' 1044 1005        
9 A' 564 543        
10 A" 1015 977        
11 A" 616 593        
12 A" 357i 344i        

Unscaled Zero Point Vibrational Energy (zpe) 9653.6 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 9295.4 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 MP4/TZVP
ABC
2.43507 0.37486 0.32485

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.422 0.000
O2 1.206 0.229 0.000
N3 -0.946 -0.561 0.000
H4 -0.447 1.432 0.000
H5 -0.654 -1.526 0.000
H6 -1.927 -0.340 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22171.36431.10452.05462.0726
O21.22172.29272.04502.55693.1849
N31.36432.29272.05451.00811.0058
H41.10452.04502.05452.96502.3090
H52.05462.55691.00812.96501.7400
H62.07263.18491.00582.30901.7400

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.239 C1 N3 H6 121.219
O2 C1 N3 124.795 O2 C1 H4 122.987
N3 C1 H4 112.218 H5 N3 H6 119.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-169.549744
Energy at 298.15K-169.553663
HF Energy-168.994242
Nuclear repulsion energy70.825238
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 MP4/TZVP
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 3722 3584        
2 A 3585 3452        
3 A 2988 2877        
4 A 1762 1696        
5 A 1628 1567        
6 A 1434 1381        
7 A 1268 1221        
8 A 1066 1026        
9 A 1020 982        
10 A 615 592        
11 A 563 542        
12 A 432 416        

Unscaled Zero Point Vibrational Energy (zpe) 10041.0 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 9668.4 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 MP4/TZVP
ABC
2.40660 0.37438 0.32518

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.161 0.391 0.003
O2 1.201 -0.247 0.008
N3 -1.094 -0.160 -0.058
H4 0.134 1.495 -0.001
H5 -1.162 -1.152 0.120
H6 -1.883 0.409 0.205

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22071.37201.10432.03612.0534
O21.22072.29772.04312.53323.1591
N31.37202.29772.06211.01001.0080
H41.10432.04312.06212.95012.2996
H52.03612.53321.01002.95011.7219
H62.05343.15911.00802.29961.7219

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.658 C1 N3 H6 118.458
O2 C1 N3 124.707 O2 C1 H4 122.915
N3 C1 H4 112.317 H5 N3 H6 117.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability