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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-169.608669
Energy at 298.15K-169.612299
HF Energy-169.608669
Nuclear repulsion energy69.612961
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 PBEPBE/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' 3090 3048 12.45      
2 A' 2963 2922 1.38      
3 A' 1610 1587 69.82      
4 A' 1410 1390 22.52      
5 A' 1307 1290 26.51      
6 A' 1109 1094 17.27      
7 A' 785 774 38.80      
8 A' 548 540 0.47      
9 A" 3057 3015 2.72      
10 A" 1409 1389 10.77      
11 A" 910 898 0.53      
12 A" 169 167 2.99      

Unscaled Zero Point Vibrational Energy (zpe) 9182.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9056.9 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 PBEPBE/6-31G**
ABC
1.98742 0.37607 0.33621

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.955 -0.575 0.000
N2 0.000 0.580 0.000
O3 1.170 0.230 0.000
H4 -0.429 -1.543 0.000
H5 -1.602 -0.455 0.886
H6 -1.602 -0.455 -0.886

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49902.27291.10141.10391.1039
N21.49901.22142.16632.10312.1031
O32.27291.22142.38842.99002.9900
H41.10142.16632.38841.82891.8289
H51.10392.10312.99001.82891.7727
H61.10392.10312.99001.82891.7727

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.935 N2 C1 H4 111.921
N2 C1 H5 106.809 N2 C1 H6 106.809
H4 C1 H5 112.060 H4 C1 H6 112.060
H5 C1 H6 106.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.269      
2 N 0.042      
3 O -0.234      
4 H 0.140      
5 H 0.160      
6 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.883 -1.285 0.000 2.280
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.807 0.333 0.000
y 0.333 -18.843 0.000
z 0.000 0.000 -16.463
Traceless
 xyz
x -0.154 0.333 0.000
y 0.333 -1.708 0.000
z 0.000 0.000 1.862
Polar
3z2-r23.724
x2-y21.036
xy0.333
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.394 0.412 0.000
y 0.412 2.998 0.000
z 0.000 0.000 2.478


<r2> (average value of r2) Å2
<r2> 41.936
(<r2>)1/2 6.476