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All results from a given calculation for CH3ONO (Methyl nitrite)

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 cis 1A'
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-244.760727
Energy at 298.15K-244.765195
Nuclear repulsion energy121.547137
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' 3121 3078 5.66      
2 A' 2983 2942 11.52      
3 A' 1657 1634 152.98      
4 A' 1447 1427 5.76      
5 A' 1387 1368 4.21      
6 A' 1134 1118 0.26      
7 A' 972 959 46.82      
8 A' 836 825 54.03      
9 A' 580 572 114.05      
10 A' 332 328 1.42      
11 A" 3057 3015 17.31      
12 A" 1431 1412 10.03      
13 A" 1114 1099 0.15      
14 A" 377 372 1.98      
15 A" 138 136 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 10283.0 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 10142.1 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
0.66103 0.24343 0.18419

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 1.321 0.341 0.000
O2 0.000 0.913 0.000
H3 2.002 1.202 0.000
H4 1.481 -0.283 0.895
H5 1.481 -0.283 -0.895
N6 -1.061 -0.060 0.000
O7 -0.683 -1.196 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43981.09711.10281.10282.41642.5260
O21.43982.02282.10342.10341.43972.2169
H31.09712.02281.81051.81053.31313.5998
H41.10282.10341.81051.78972.70422.5129
H51.10282.10341.81051.78972.70422.5129
N62.41641.43973.31312.70422.70421.1979
O72.52602.21693.59982.51292.51291.1979

picture of Methyl nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 N6 114.106 O2 C1 H3 104.954
O2 C1 H4 110.938 O2 C1 H5 110.938
O2 N6 O7 114.075 H3 C1 H4 110.770
H3 C1 H5 110.770 H4 C1 H5 108.468
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 -0.169      
2 O -0.311      
3 H 0.155      
4 H 0.149      
5 H 0.149      
6 N 0.253      
7 O -0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.113 0.069 0.000 2.115
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.448 0.606 0.000
y 0.606 -24.925 0.000
z 0.000 0.000 -21.868
Traceless
 xyz
x 1.948 0.606 0.000
y 0.606 -3.267 0.000
z 0.000 0.000 1.319
Polar
3z2-r22.637
x2-y23.477
xy0.606
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.662 0.888 0.000
y 0.888 4.348 0.000
z 0.000 0.000 2.733


<r2> (average value of r2) Å2
<r2> 66.738
(<r2>)1/2 8.169