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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-169.621083
Energy at 298.15K-169.624798
HF Energy-169.621083
Nuclear repulsion energy70.559968
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 HSEh1PBE/6-31G**
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' 3181 3036 10.35      
2 A' 3054 2915 1.42      
3 A' 1737 1658 73.60      
4 A' 1461 1395 21.41      
5 A' 1377 1314 24.43      
6 A' 1167 1113 15.39      
7 A' 873 833 23.04      
8 A' 581 554 2.04      
9 A" 3150 3006 2.96      
10 A" 1461 1394 11.82      
11 A" 967 922 0.99      
12 A" 173 165 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 9590.2 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 9151.9 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 HSEh1PBE/6-31G**
ABC
2.04487 0.38627 0.34574

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.942 -0.566 0.000
N2 0.000 0.570 0.000
O3 1.154 0.229 0.000
H4 -0.416 -1.525 0.000
H5 -1.582 -0.452 0.881
H6 -1.582 -0.452 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47622.24171.09301.09511.0951
N21.47621.20342.13612.07982.0798
O32.24171.20342.35412.95432.9543
H41.09302.13612.35411.81261.8126
H51.09512.07982.95431.81261.7617
H61.09512.07982.95431.81261.7617

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.168 N2 C1 H4 111.620
N2 C1 H5 107.037 N2 C1 H6 107.037
H4 C1 H5 111.872 H4 C1 H6 111.872
H5 C1 H6 107.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.286      
2 N 0.052      
3 O -0.257      
4 H 0.152      
5 H 0.169      
6 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.978 -1.341 0.000 2.390
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.874 0.347 0.000
y 0.347 -18.790 0.000
z 0.000 0.000 -16.406
Traceless
 xyz
x -0.276 0.347 0.000
y 0.347 -1.650 0.000
z 0.000 0.000 1.926
Polar
3z2-r23.852
x2-y20.916
xy0.347
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.187 0.309 0.000
y 0.309 2.836 0.000
z 0.000 0.000 2.425


<r2> (average value of r2) Å2
<r2> 41.113
(<r2>)1/2 6.412