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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-168.870808
Energy at 298.15K-168.874618
HF Energy-168.870808
Nuclear repulsion energy71.774428
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 HF/6-311G*
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' 3299 2983 20.47      
2 A' 3197 2891 8.47      
3 A' 1967 1779 98.72      
4 A' 1601 1448 22.92      
5 A' 1544 1397 8.22      
6 A' 1291 1168 16.45      
7 A' 995 900 2.84      
8 A' 638 577 5.14      
9 A" 3274 2961 17.54      
10 A" 1597 1445 11.75      
11 A" 1102 996 5.81      
12 A" 161 146 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 10333.2 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 9345.4 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 HF/6-311G*
ABC
2.14843 0.39511 0.35552

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.923 -0.578 0.000
N2 0.000 0.557 0.000
O3 1.129 0.256 0.000
H4 -0.388 -1.518 0.000
H5 -1.553 -0.481 0.876
H6 -1.553 -0.481 -0.876

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.46322.21521.08181.08341.0834
N21.46321.16832.11122.06312.0631
O32.21521.16832.33432.91582.9158
H41.08182.11122.33431.78901.7890
H51.08342.06312.91581.78901.7526
H61.08342.06312.91581.78901.7526

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 114.192 N2 C1 H4 111.223
N2 C1 H5 107.278 N2 C1 H6 107.278
H4 C1 H5 111.439 H4 C1 H6 111.439
H5 C1 H6 107.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.516      
2 N 0.077      
3 O -0.257      
4 H 0.224      
5 H 0.236      
6 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.155 -1.426 0.000 2.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.625 0.341 0.000
y 0.341 -19.017 0.000
z 0.000 0.000 -16.565
Traceless
 xyz
x -0.834 0.341 0.000
y 0.341 -1.421 0.000
z 0.000 0.000 2.256
Polar
3z2-r24.511
x2-y20.391
xy0.341
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.060 0.166 0.000
y 0.166 2.681 0.000
z 0.000 0.000 2.356


<r2> (average value of r2) Å2
<r2> 40.572
(<r2>)1/2 6.370