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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP3=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-169.459729
Energy at 298.15K-169.463454
HF Energy-168.873823
Nuclear repulsion energy70.760518
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/6-311G**
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' 3201 3201 10.54      
2 A' 3089 3089 3.37      
3 A' 1780 1780 47.49      
4 A' 1489 1489 17.75      
5 A' 1422 1422 16.79      
6 A' 1190 1190 16.37      
7 A' 918 918 10.93      
8 A' 603 603 2.41      
9 A" 3183 3183 6.75      
10 A" 1489 1489 10.80      
11 A" 1006 1006 4.50      
12 A" 149 149 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 9758.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9758.9 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 MP3=FULL/6-311G**
ABC
2.04295 0.38840 0.34759

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.938 -0.573 0.000
N2 0.000 0.573 0.000
O3 1.146 0.236 0.000
H4 -0.398 -1.522 0.000
H5 -1.571 -0.469 0.885
H6 -1.571 -0.469 -0.885

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48122.23541.09191.09281.0928
N21.48121.19452.13252.08232.0823
O32.23541.19452.33932.94282.9428
H41.09192.13252.33931.80811.8081
H51.09282.08232.94281.80811.7694
H61.09282.08232.94281.80811.7694

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.889 N2 C1 H4 111.046
N2 C1 H5 107.020 N2 C1 H6 107.020
H4 C1 H5 111.704 H4 C1 H6 111.704
H5 C1 H6 108.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability