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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-168.840300
Energy at 298.15K-168.844121
HF Energy-168.840300
Nuclear repulsion energy71.573807
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/6-31+G**
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' 3303 2986 13.71      
2 A' 3194 2888 6.77      
3 A' 1958 1771 104.76      
4 A' 1589 1437 23.04      
5 A' 1541 1393 7.95      
6 A' 1285 1162 14.16      
7 A' 999 903 2.72      
8 A' 633 572 5.42      
9 A" 3277 2963 9.80      
10 A" 1588 1436 12.52      
11 A" 1096 991 5.51      
12 A" 171 155 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 10316.8 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 9328.5 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/6-31+G**
ABC
2.13695 0.39350 0.35395

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.928 -0.573 0.000
N2 0.000 0.557 0.000
O3 1.135 0.249 0.000
H4 -0.398 -1.517 0.000
H5 -1.557 -0.470 0.877
H6 -1.557 -0.470 -0.877

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.46242.22071.08261.08411.0841
N21.46241.17602.11232.06092.0609
O32.22071.17602.33892.92082.9208
H41.08262.11232.33891.79141.7914
H51.08412.06092.92081.79141.7543
H61.08412.06092.92081.79141.7543

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 114.200 N2 C1 H4 111.314
N2 C1 H5 107.116 N2 C1 H6 107.116
H4 C1 H5 111.530 H4 C1 H6 111.530
H5 C1 H6 108.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 N 0.026      
3 O -0.182      
4 H 0.162      
5 H 0.159      
6 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.252 -1.521 0.000 2.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.743 0.434 0.000
y 0.434 -19.281 0.000
z 0.000 0.000 -16.808
Traceless
 xyz
x -0.699 0.434 0.000
y 0.434 -1.505 0.000
z 0.000 0.000 2.204
Polar
3z2-r24.408
x2-y20.538
xy0.434
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.432 0.136 0.000
y 0.136 3.037 0.000
z 0.000 0.000 2.673


<r2> (average value of r2) Å2
<r2> 40.815
(<r2>)1/2 6.389