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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP4=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-169.347537
Energy at 298.15K-169.351171
HF Energy-168.822238
Nuclear repulsion energy69.517640
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/6-31G*
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' 3178 3056        
2 A' 3058 2941        
3 A' 1525 1466        
4 A' 1484 1427        
5 A' 1410 1356        
6 A' 1165 1120        
7 A' 872 839        
8 A' 574 552        
9 A" 3155 3033        
10 A" 1500 1443        
11 A" 991 953        
12 A" 127 122        

Unscaled Zero Point Vibrational Energy (zpe) 9519.6 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9154.1 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/6-31G*
ABC
1.95801 0.37801 0.33700

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.964 -0.554 0.000
N2 0.000 0.585 0.000
O3 1.176 0.203 0.000
H4 -0.434 -1.513 0.000
H5 -1.597 -0.438 0.889
H6 -1.597 -0.438 -0.889

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49202.27011.09541.09711.0971
N21.49201.23692.14212.09392.0939
O32.27011.23692.35312.98162.9816
H41.09542.14212.35311.81581.8158
H51.09712.09392.98161.81581.7772
H61.09712.09392.98161.81581.7772

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.249 N2 C1 H4 110.838
N2 C1 H5 106.959 N2 C1 H6 106.959
H4 C1 H5 111.826 H4 C1 H6 111.826
H5 C1 H6 108.180
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability