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

using model chemistry: B3LYP/CEP-121G

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 B3LYP/CEP-121G
 hartrees
Energy at 0K-49.137672
Energy at 298.15K-49.142140
Nuclear repulsion energy66.821075
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 B3LYP/CEP-121G
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' 3168 3087 8.16      
2 A' 3017 2940 14.42      
3 A' 1497 1459 69.85      
4 A' 1493 1454 58.23      
5 A' 1429 1392 29.87      
6 A' 1159 1129 0.11      
7 A' 941 917 142.30      
8 A' 806 786 67.71      
9 A' 650 634 66.38      
10 A' 305 297 3.33      
11 A" 3121 3042 27.04      
12 A" 1480 1442 13.61      
13 A" 1130 1102 0.48      
14 A" 340 331 4.89      
15 A" 148 145 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 10342.1 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 10078.4 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 B3LYP/CEP-121G
ABC
0.63666 0.22732 0.17308

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.384 0.356 0.000
O2 0.000 0.913 0.000
H3 2.016 1.244 0.000
H4 1.548 -0.251 0.897
H5 1.548 -0.251 -0.897
N6 -1.091 -0.044 0.000
O7 -0.723 -1.233 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.49201.09041.09501.09502.50712.6389
O21.49202.04302.13462.13461.45122.2646
H31.09042.04301.80531.80533.36343.6931
H41.09502.13461.80531.79312.79512.6318
H51.09502.13461.80531.79312.79512.6318
N62.50711.45123.36342.79512.79511.2448
O72.63892.26463.69312.63182.63181.2448

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 116.811 O2 C1 H3 103.484
O2 C1 H4 110.252 O2 C1 H5 110.252
O2 N6 O7 114.058 H3 C1 H4 111.393
H3 C1 H5 111.393 H4 C1 H5 109.915
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.351      
2 O -0.210      
3 H 0.193      
4 H 0.184      
5 H 0.184      
6 N 0.151      
7 O -0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.708 0.100 0.000 2.710
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.586 0.637 0.000
y 0.637 -27.088 0.000
z 0.000 0.000 -22.159
Traceless
 xyz
x 3.038 0.637 0.000
y 0.637 -5.216 0.000
z 0.000 0.000 2.179
Polar
3z2-r24.357
x2-y25.502
xy0.637
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.411 -1.899 0.000
y -1.899 4.310 0.000
z 0.000 0.000 2.318


<r2> (average value of r2) Å2
<r2> 58.277
(<r2>)1/2 7.634