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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-169.431487
Energy at 298.15K-169.435205
HF Energy-168.845954
Nuclear repulsion energy70.584635
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(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3213 3043 6.49      
2 A' 3095 2931 1.91      
3 A' 1731 1640 35.78      
4 A' 1495 1416 16.05      
5 A' 1423 1348 13.01      
6 A' 1187 1124 11.52      
7 A' 907 859 10.40      
8 A' 594 563 2.51      
9 A" 3190 3022 3.57      
10 A" 1494 1415 8.49      
11 A" 1005 952 1.91      
12 A" 152 144 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 9742.8 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 9228.3 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(2df,p)
ABC
2.03200 0.38695 0.34600

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.942 -0.570 0.000
N2 0.000 0.575 0.000
O3 1.151 0.230 0.000
H4 -0.404 -1.519 0.000
H5 -1.576 -0.466 0.883
H6 -1.576 -0.466 -0.883

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48242.24001.09031.09191.0919
N21.48241.20132.13252.08502.0850
O32.24001.20132.34032.94942.9494
H41.09032.13252.34031.80521.8052
H51.09192.08502.94941.80521.7651
H61.09192.08502.94941.80521.7651

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.743 N2 C1 H4 111.056
N2 C1 H5 107.208 N2 C1 H6 107.208
H4 C1 H5 111.639 H4 C1 H6 111.639
H5 C1 H6 107.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability