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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-169.332974
Energy at 298.15K-169.336661
HF Energy-168.839852
Nuclear repulsion energy69.868534
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 MP2/cc-pVDZ
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' 3211 3058 7.81      
2 A' 3077 2931 3.19      
3 A' 1558 1484 19.24      
4 A' 1456 1387 17.25      
5 A' 1370 1305 19.56      
6 A' 1154 1100 15.14      
7 A' 893 851 15.25      
8 A' 581 554 1.66      
9 A" 3195 3044 3.86      
10 A" 1462 1392 9.73      
11 A" 972 926 2.78      
12 A" 149 142 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 9539.6 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 9086.5 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 MP2/cc-pVDZ
ABC
1.97438 0.38206 0.34079

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.954 -0.556 0.000
N2 0.000 0.581 0.000
O3 1.167 0.209 0.000
H4 -0.423 -1.521 0.000
H5 -1.594 -0.441 0.890
H6 -1.594 -0.441 -0.890

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48462.25531.10161.10221.1022
N21.48461.22482.14432.09212.0921
O32.25531.22482.35002.97272.9727
H41.10162.14432.35001.82501.8250
H51.10222.09212.97271.82501.7808
H61.10222.09212.97271.82501.7808

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.341 N2 C1 H4 111.154
N2 C1 H5 107.020 N2 C1 H6 107.020
H4 C1 H5 111.810 H4 C1 H6 111.810
H5 C1 H6 107.765
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability