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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-169.663939
Energy at 298.15K-169.667636
HF Energy-169.663939
Nuclear repulsion energy69.364374
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 B3PW91/6-31G
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' 3183 3048 11.45      
2 A' 3055 2925 1.14      
3 A' 1562 1496 26.19      
4 A' 1485 1423 39.90      
5 A' 1410 1350 40.87      
6 A' 1162 1113 20.16      
7 A' 841 806 24.54      
8 A' 561 538 1.92      
9 A" 3156 3022 2.45      
10 A" 1490 1427 18.79      
11 A" 1000 958 0.51      
12 A" 171 164 3.38      

Unscaled Zero Point Vibrational Energy (zpe) 9537.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9133.7 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 B3PW91/6-31G
ABC
2.00588 0.37179 0.33315

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.969 -0.561 0.000
N2 0.000 0.575 0.000
O3 1.185 0.218 0.000
H4 -0.459 -1.528 0.000
H5 -1.604 -0.439 0.883
H6 -1.604 -0.439 -0.883

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49302.29001.09301.09501.0950
N21.49301.23742.15292.09292.0929
O32.29001.23742.39852.99802.9980
H41.09302.15292.39851.81041.8104
H51.09502.09292.99801.81041.7668
H61.09502.09292.99801.81041.7668

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.680 N2 C1 H4 111.784
N2 C1 H5 106.931 N2 C1 H6 106.931
H4 C1 H5 111.672 H4 C1 H6 111.672
H5 C1 H6 107.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 N 0.055      
3 O -0.278      
4 H 0.193      
5 H 0.214      
6 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.356 -1.588 0.000 2.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.438 0.459 0.000
y 0.459 -19.193 0.000
z 0.000 0.000 -16.452
Traceless
 xyz
x -0.616 0.459 0.000
y 0.459 -1.747 0.000
z 0.000 0.000 2.363
Polar
3z2-r24.726
x2-y20.755
xy0.459
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.259 0.275 0.000
y 0.275 2.638 0.000
z 0.000 0.000 2.255


<r2> (average value of r2) Å2
<r2> 42.340
(<r2>)1/2 6.507