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

using model chemistry: B1B95/3-21G*

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 B1B95/3-21G*
 hartrees
Energy at 0K-243.553292
Energy at 298.15K-243.557957
Nuclear repulsion energy120.269786
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 B1B95/3-21G*
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' 3209 3065 3.97      
2 A' 3081 2942 5.93      
3 A' 1551 1481 11.15      
4 A' 1477 1411 12.36      
5 A' 1400 1337 73.95      
6 A' 1150 1098 0.27      
7 A' 979 935 75.47      
8 A' 839 801 75.20      
9 A' 678 647 45.61      
10 A' 368 352 4.08      
11 A" 3153 3011 16.61      
12 A" 1536 1467 15.10      
13 A" 1147 1095 0.00      
14 A" 355 339 3.99      
15 A" 214 204 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 10568.2 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 10091.6 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 B1B95/3-21G*
ABC
0.61960 0.24700 0.18267

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 0.306 0.000
O2 0.000 0.947 0.000
H3 2.021 1.139 0.000
H4 1.452 -0.317 0.887
H5 1.452 -0.317 -0.887
N6 -1.083 -0.048 0.000
O7 -0.659 -1.198 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.46921.08721.09181.09182.43102.4871
O21.46922.02992.11952.11951.47142.2442
H31.08722.02991.79721.79723.32343.5556
H41.09182.11951.79721.77462.69892.4533
H51.09182.11951.79721.77462.69892.4533
N62.43101.47143.32342.69892.69891.2251
O72.48712.24423.55562.45332.45331.2251

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 111.522 O2 C1 H3 104.133
O2 C1 H4 110.848 O2 C1 H5 110.848
O2 N6 O7 112.344 H3 C1 H4 111.129
H3 C1 H5 111.129 H4 C1 H5 108.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.413      
2 O -0.345      
3 H 0.248      
4 H 0.235      
5 H 0.235      
6 N 0.311      
7 O -0.272      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.162 -0.139 0.000 2.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.039 0.632 0.000
y 0.632 -25.677 0.000
z 0.000 0.000 -21.701
Traceless
 xyz
x 2.650 0.632 0.000
y 0.632 -4.307 0.000
z 0.000 0.000 1.657
Polar
3z2-r23.314
x2-y24.639
xy0.632
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.988 0.798 0.000
y 0.798 3.859 0.000
z 0.000 0.000 2.162


<r2> (average value of r2) Å2
<r2> 67.023
(<r2>)1/2 8.187