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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G2
 hartrees
Energy at 0K-169.546754
Energy at 298.15K-169.542019
HF Energy-168.829537
Nuclear repulsion energy71.567822
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 HF/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' 3327 3135 15.20      
2 A' 3219 3033 6.20      
3 A' 1972 1858 86.59      
4 A' 1610 1516 17.76      
5 A' 1556 1466 5.92      
6 A' 1293 1218 13.77      
7 A' 998 940 2.83      
8 A' 635 598 5.27      
9 A" 3297 3106 13.02      
10 A" 1607 1515 8.86      
11 A" 1101 1037 4.23      
12 A" 169 159 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 10391.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 9791.0 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 MP2=FULL/6-31G*
ABC
1.97441 0.38213 0.34057

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.960 -0.544 0.000
N2 0.000 0.581 0.000
O3 1.173 0.194 0.000
H4 -0.440 -1.504 0.000
H5 -1.592 -0.425 0.885
H6 -1.592 -0.425 -0.885

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47902.25761.09201.09331.0933
N21.47901.23532.13082.08032.0803
O32.25761.23532.34232.96822.9682
H41.09202.13082.34231.80911.8091
H51.09332.08032.96821.80911.7693
H61.09332.08032.96821.80911.7693

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.835 N2 C1 H4 111.235
N2 C1 H5 107.347 N2 C1 H6 107.347
H4 C1 H5 111.408 H4 C1 H6 111.408
H5 C1 H6 107.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability