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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-169.370911
Energy at 298.15K-169.374600
HF Energy-168.853114
Nuclear repulsion energy69.732516
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/aug-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' 3190 3059 8.27      
2 A' 3059 2934 2.64      
3 A' 1528 1465 18.87      
4 A' 1447 1387 22.08      
5 A' 1366 1310 21.66      
6 A' 1155 1108 14.18      
7 A' 895 858 15.50      
8 A' 575 551 1.75      
9 A" 3169 3040 2.95      
10 A" 1452 1392 11.02      
11 A" 975 935 3.37      
12 A" 151 145 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 9480.3 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 9091.6 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/aug-cc-pVDZ
ABC
1.98070 0.37979 0.33915

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.960 -0.553 0.000
N2 0.000 0.578 0.000
O3 1.173 0.206 0.000
H4 -0.435 -1.520 0.000
H5 -1.596 -0.428 0.890
H6 -1.596 -0.428 -0.890

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48352.26391.10011.10131.1013
N21.48351.23052.14292.08582.0858
O32.26391.23052.35942.97692.9769
H41.10012.14292.35941.82601.8260
H51.10132.08582.97691.82601.7797
H61.10132.08582.97691.82601.7797

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.724 N2 C1 H4 111.212
N2 C1 H5 106.664 N2 C1 H6 106.664
H4 C1 H5 112.087 H4 C1 H6 112.087
H5 C1 H6 107.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability