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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-169.337094
Energy at 298.15K-169.340806
HF Energy-168.831297
Nuclear repulsion energy70.254792
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 CCD/6-31G**
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' 3242 3039 10.82      
2 A' 3120 2925 3.45      
3 A' 1716 1609 30.13      
4 A' 1524 1429 13.35      
5 A' 1445 1355 10.53      
6 A' 1194 1120 11.97      
7 A' 915 858 9.56      
8 A' 593 556 2.57      
9 A" 3218 3018 8.25      
10 A" 1525 1430 7.49      
11 A" 1015 952 3.14      
12 A" 148 138 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 9827.4 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 9214.1 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 CCD/6-31G**
ABC
2.00508 0.38462 0.34334

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.950 -0.562 0.000
N2 0.000 0.579 0.000
O3 1.160 0.217 0.000
H4 -0.419 -1.511 0.000
H5 -1.580 -0.455 0.882
H6 -1.580 -0.455 -0.882

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48482.24871.08801.08951.0895
N21.48481.21502.13222.08432.0843
O32.24871.21502.34072.95572.9557
H41.08802.13222.34071.80101.8010
H51.08952.08432.95571.80101.7645
H61.08952.08432.95571.80101.7645

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.422 N2 C1 H4 111.007
N2 C1 H5 107.125 N2 C1 H6 107.125
H4 C1 H5 111.607 H4 C1 H6 111.607
H5 C1 H6 108.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability