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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP4=FULL/6-311G**

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=FULL/6-311G**
 hartrees
Energy at 0K-169.590302
Energy at 298.15K 
HF Energy-168.979450
Nuclear repulsion energy70.878015
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=FULL/6-311G**
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' 3770 3625        
2 A' 3627 3488        
3 A' 2959 2845        
4 A' 1794 1725        
5 A' 1623 1560        
6 A' 1420 1365        
7 A' 1271 1222        
8 A' 1045 1004        
9 A' 558 536        
10 A" 1042 1002        
11 A" 640 615        
12 A" 297i 285i        

Unscaled Zero Point Vibrational Energy (zpe) 9725.0 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9350.6 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=FULL/6-311G**
ABC
2.44372 0.37414 0.32446

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.421 0.000
O2 1.205 0.240 0.000
N3 -0.943 -0.569 0.000
H4 -0.465 1.429 0.000
H5 -0.642 -1.531 0.000
H6 -1.926 -0.356 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21811.36721.11002.05492.0772
O21.21812.29482.04982.55863.1870
N31.36722.29482.05401.00811.0058
H41.11002.04982.05402.96512.3069
H52.05492.55861.00812.96511.7401
H62.07723.18701.00582.30691.7401

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.020 C1 N3 H6 121.426
O2 C1 N3 125.062 O2 C1 H4 123.328
N3 C1 H4 111.610 H5 N3 H6 119.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP4=FULL/6-311G**
 hartrees
Energy at 0K-169.590580
Energy at 298.15K-169.594456
HF Energy-168.979117
Nuclear repulsion energy70.821870
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=FULL/6-311G**
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 3738 3594        
2 A 3604 3465        
3 A 2963 2849        
4 A 1794 1725        
5 A 1626 1563        
6 A 1422 1368        
7 A 1273 1224        
8 A 1068 1027        
9 A 1031 992        
10 A 626 602        
11 A 560 538        
12 A 382 367        

Unscaled Zero Point Vibrational Energy (zpe) 10043.1 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9656.4 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=FULL/6-311G**
ABC
2.41257 0.37386 0.32489

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.163 0.389 0.002
O2 1.201 -0.246 0.009
N3 -1.096 -0.160 -0.058
H4 0.128 1.498 -0.001
H5 -1.163 -1.152 0.117
H6 -1.884 0.409 0.207

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21721.37461.10962.03672.0580
O21.21722.29932.04832.53383.1607
N31.37462.29932.06171.01001.0080
H41.10962.04832.06172.95082.2980
H52.03672.53381.01002.95081.7227
H62.05803.16071.00802.29801.7227

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.487 C1 N3 H6 118.675
O2 C1 N3 124.925 O2 C1 H4 123.290
N3 C1 H4 111.735 H5 N3 H6 117.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability