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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-169.358598
Energy at 298.15K-169.362271
HF Energy-168.841625
Nuclear repulsion energy69.979428
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 QCISD/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' 3182 3053 9.97      
2 A' 3060 2936 4.45      
3 A' 1667 1599 51.50      
4 A' 1459 1400 16.71      
5 A' 1379 1323 11.55      
6 A' 1155 1108 17.28      
7 A' 870 835 14.04      
8 A' 582 559 1.73      
9 A" 3164 3036 7.12      
10 A" 1464 1404 8.23      
11 A" 975 935 3.28      
12 A" 141 135 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 9548.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9160.9 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 QCISD/cc-pVDZ
ABC
1.98843 0.38105 0.34056

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.949 -0.575 0.000
N2 0.000 0.581 0.000
O3 1.159 0.231 0.000
H4 -0.403 -1.533 0.000
H5 -1.589 -0.467 0.893
H6 -1.589 -0.467 -0.893

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49542.25711.10311.10411.1041
N21.49541.21112.15202.10292.1029
O32.25711.21112.35632.97312.9731
H41.10312.15202.35631.82771.8277
H51.10412.10292.97311.82771.7868
H61.10412.10292.97311.82771.7868

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.599 N2 C1 H4 110.924
N2 C1 H5 107.026 N2 C1 H6 107.026
H4 C1 H5 111.793 H4 C1 H6 111.793
H5 C1 H6 108.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability