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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-169.615243
Energy at 298.15K-169.618965
HF Energy-169.615243
Nuclear repulsion energy70.619082
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 PBE1PBE/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' 3177 3035 9.26      
2 A' 3051 2915 1.49      
3 A' 1730 1653 94.67      
4 A' 1455 1390 28.14      
5 A' 1377 1316 33.77      
6 A' 1167 1115 17.33      
7 A' 887 847 24.31      
8 A' 583 557 2.00      
9 A" 3149 3008 0.98      
10 A" 1450 1386 16.67      
11 A" 972 928 2.02      
12 A" 172 165 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 9584.8 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 9156.4 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 PBE1PBE/6-31+G**
ABC
2.06593 0.38577 0.34596

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.943 -0.565 0.000
N2 0.000 0.565 0.000
O3 1.155 0.231 0.000
H4 -0.424 -1.528 0.000
H5 -1.582 -0.443 0.881
H6 -1.582 -0.443 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47132.24391.09381.09551.0955
N21.47131.20252.13552.07222.0722
O32.24391.20252.36442.95342.9534
H41.09382.13552.36441.81491.8149
H51.09552.07222.95341.81491.7628
H61.09552.07222.95341.81491.7628

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.736 N2 C1 H4 111.877
N2 C1 H5 106.756 N2 C1 H6 106.756
H4 C1 H5 111.989 H4 C1 H6 111.989
H5 C1 H6 107.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 N -0.024      
3 O -0.091      
4 H 0.191      
5 H 0.197      
6 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.128 -1.464 0.000 2.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.465 0.464 0.000
y 0.464 -19.467 0.000
z 0.000 0.000 -16.784
Traceless
 xyz
x -0.340 0.464 0.000
y 0.464 -1.842 0.000
z 0.000 0.000 2.182
Polar
3z2-r24.364
x2-y21.002
xy0.464
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.886 0.297 0.000
y 0.297 3.566 0.000
z 0.000 0.000 2.868


<r2> (average value of r2) Å2
<r2> 41.440
(<r2>)1/2 6.437