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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP3=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-168.204171
Energy at 298.15K-168.207798
HF Energy-167.860421
Nuclear repulsion energy68.337855
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/3-21G*
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' 3187 3187 8.34      
2 A' 3084 3084 1.50      
3 A' 1563 1563 12.81      
4 A' 1459 1459 1.22      
5 A' 1389 1389 22.47      
6 A' 1153 1153 12.81      
7 A' 807 807 11.26      
8 A' 558 558 2.55      
9 A" 3162 3162 7.49      
10 A" 1560 1560 10.50      
11 A" 1015 1015 1.31      
12 A" 135 135 1.81      

Unscaled Zero Point Vibrational Energy (zpe) 9535.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9535.5 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/3-21G*
ABC
1.85862 0.36688 0.32534

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.984 -0.566 0.000
N2 0.000 0.609 0.000
O3 1.195 0.196 0.000
H4 -0.431 -1.508 0.000
H5 -1.610 -0.462 0.891
H6 -1.610 -0.462 -0.891

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.53292.30811.09211.09421.0942
N21.53291.26422.16052.12932.1293
O32.30811.26422.35483.01543.0154
H41.09212.16052.35481.81061.8106
H51.09422.12933.01541.81061.7827
H61.09422.12933.01541.81061.7827

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.849 N2 C1 H4 109.640
N2 C1 H5 107.111 N2 C1 H6 107.111
H4 C1 H5 111.827 H4 C1 H6 111.827
H5 C1 H6 109.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability