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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-169.452971
Energy at 298.15K-169.456703
HF Energy-168.846647
Nuclear repulsion energy70.855263
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 MP3=FULL/6-31G(2df,p)
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' 3240 3240 5.90      
2 A' 3121 3121 1.37      
3 A' 1765 1765 40.00      
4 A' 1507 1507 17.84      
5 A' 1429 1429 14.85      
6 A' 1197 1197 11.33      
7 A' 922 922 10.94      
8 A' 601 601 2.86      
9 A" 3217 3217 2.57      
10 A" 1505 1505 9.35      
11 A" 1016 1016 1.59      
12 A" 154 154 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 9836.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9836.5 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 MP3=FULL/6-31G(2df,p)
ABC
2.05002 0.38986 0.34868

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.938 -0.567 0.000
N2 0.000 0.572 0.000
O3 1.147 0.230 0.000
H4 -0.404 -1.514 0.000
H5 -1.571 -0.463 0.879
H6 -1.571 -0.463 -0.879

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47552.23141.08721.08871.0887
N21.47551.19672.12502.07692.0769
O32.23141.19672.33322.93942.9394
H41.08722.12502.33321.80031.8003
H51.08872.07692.93941.80031.7582
H61.08872.07692.93941.80031.7582

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.820 N2 C1 H4 111.126
N2 C1 H5 107.218 N2 C1 H6 107.218
H4 C1 H5 111.667 H4 C1 H6 111.667
H5 C1 H6 107.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability