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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP4/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-169.467374
Energy at 298.15K 
HF Energy-168.945607
Nuclear repulsion energy70.552764
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/cc-pVDZ
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' 3761 3636        
2 A' 3605 3486        
3 A' 2948 2851        
4 A' 1806 1747        
5 A' 1599 1546        
6 A' 1410 1363        
7 A' 1274 1232        
8 A' 1042 1007        
9 A' 557 539        
10 A" 1039 1005        
11 A" 643 622        
12 A" 281i 272i        

Unscaled Zero Point Vibrational Energy (zpe) 9701.4 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 9380.3 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 MP4/cc-pVDZ
ABC
2.41865 0.37116 0.32178

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.421 0.000
O2 1.210 0.239 0.000
N3 -0.947 -0.570 0.000
H4 -0.473 1.438 0.000
H5 -0.646 -1.540 0.000
H6 -1.936 -0.353 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22391.37041.12162.06462.0851
O21.22392.30392.06672.57153.2017
N31.37042.30392.06271.01541.0126
H41.12162.06672.06272.98272.3127
H52.06462.57151.01542.98271.7522
H62.08513.20171.01262.31271.7522

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.098 C1 N3 H6 121.366
O2 C1 N3 125.160 O2 C1 H4 123.498
N3 C1 H4 111.342 H5 N3 H6 119.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP4/cc-pVDZ
 hartrees
Energy at 0K-169.467727
Energy at 298.15K-169.471585
HF Energy-168.945448
Nuclear repulsion energy70.473927
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/cc-pVDZ
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 3717 3594        
2 A 3576 3457        
3 A 2953 2855        
4 A 1805 1745        
5 A 1607 1553        
6 A 1410 1364        
7 A 1274 1231        
8 A 1068 1033        
9 A 1024 990        
10 A 623 602        
11 A 556 538        
12 A 371 358        

Unscaled Zero Point Vibrational Energy (zpe) 9990.5 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 9659.9 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/cc-pVDZ
ABC
2.38237 0.37055 0.32221

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.163 0.390 0.002
O2 1.207 -0.247 0.010
N3 -1.101 -0.161 -0.066
H4 0.122 1.510 -0.001
H5 -1.162 -1.157 0.133
H6 -1.886 0.407 0.239

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22291.37971.12122.04132.0619
O21.22292.31022.06492.54123.1690
N31.37972.31022.07161.01831.0158
H41.12122.06492.07162.96392.3031
H52.04132.54121.01832.96391.7270
H62.06193.16901.01582.30311.7270

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 115.883 C1 N3 H6 118.004
O2 C1 N3 125.055 O2 C1 H4 123.445
N3 C1 H4 111.438 H5 N3 H6 116.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability