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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP3/TZVP

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/TZVP
 hartrees
Energy at 0K-169.417257
Energy at 298.15K-169.420995
HF Energy-168.888406
Nuclear repulsion energy70.747065
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/TZVP
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' 3207 2999 10.97      
2 A' 3094 2893 3.46      
3 A' 1748 1635 48.03      
4 A' 1496 1399 17.20      
5 A' 1436 1343 14.01      
6 A' 1196 1119 15.12      
7 A' 913 854 11.20      
8 A' 603 564 2.48      
9 A" 3188 2981 6.77      
10 A" 1491 1394 10.88      
11 A" 1014 949 5.30      
12 A" 156 146 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 9771.1 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 9137.9 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/TZVP
ABC
2.04945 0.38786 0.34716

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.939 -0.571 0.000
N2 0.000 0.572 0.000
O3 1.148 0.235 0.000
H4 -0.407 -1.521 0.000
H5 -1.571 -0.466 0.881
H6 -1.571 -0.466 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47992.23751.08861.08961.0896
N21.47991.19672.13232.07952.0795
O32.23751.19672.34492.94322.9432
H41.08862.13232.34491.80141.8014
H51.08962.07952.94321.80141.7625
H61.08962.07952.94321.80141.7625

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.998 N2 C1 H4 111.317
N2 C1 H5 107.075 N2 C1 H6 107.075
H4 C1 H5 111.588 H4 C1 H6 111.588
H5 C1 H6 107.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability