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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCD/3-21G

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/3-21G
 hartrees
Energy at 0K-168.210832
Energy at 298.15K-168.214423
HF Energy-167.858803
Nuclear repulsion energy67.968059
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/3-21G
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' 3155 3067 9.09      
2 A' 3052 2968 2.17      
3 A' 1550 1507 12.51      
4 A' 1437 1398 4.24      
5 A' 1342 1305 15.07      
6 A' 1134 1103 11.89      
7 A' 786 764 12.51      
8 A' 549 534 1.96      
9 A" 3131 3045 8.84      
10 A" 1549 1506 9.57      
11 A" 1006 978 1.28      
12 A" 123 119 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 9407.5 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 9146.9 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 CCD/3-21G
ABC
1.83165 0.36350 0.32197

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.990 -0.567 0.000
N2 0.000 0.614 0.000
O3 1.201 0.192 0.000
H4 -0.436 -1.511 0.000
H5 -1.617 -0.463 0.894
H6 -1.617 -0.463 -0.894

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.54152.31941.09461.09651.0965
N21.54151.27362.16952.13842.1384
O32.31941.27362.36233.02813.0281
H41.09462.16952.36231.81431.8143
H51.09652.13843.02811.81431.7879
H61.09652.13843.02811.81431.7879

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.595 N2 C1 H4 109.607
N2 C1 H5 107.105 N2 C1 H6 107.105
H4 C1 H5 111.792 H4 C1 H6 111.792
H5 C1 H6 109.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability