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

using model chemistry: B3PW91/cc-pVTZ

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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-245.007109
Energy at 298.15K-245.011487
Nuclear repulsion energy123.747561
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 B3PW91/cc-pVTZ
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' 3126 3006 10.10      
2 A' 3039 2923 36.35      
3 A' 1782 1714 250.89      
4 A' 1501 1443 7.18      
5 A' 1450 1394 4.64      
6 A' 1201 1155 22.56      
7 A' 1085 1043 49.00      
8 A' 855 822 371.39      
9 A' 600 577 73.67      
10 A' 375 361 7.46      
11 A" 3124 3004 19.30      
12 A" 1477 1420 5.15      
13 A" 1168 1123 0.28      
14 A" 231 222 0.54      
15 A" 116 112 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 10564.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 10158.7 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 B3PW91/cc-pVTZ
ABC
0.68860 0.25061 0.19034

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.316 0.324 0.000
O2 0.000 0.882 0.000
H3 1.982 1.182 0.000
H4 1.478 -0.289 0.888
H5 1.478 -0.289 -0.888
N6 -1.038 -0.040 0.000
O7 -0.696 -1.165 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.42911.08631.09081.09082.38132.5028
O21.42912.00442.08412.08411.38752.1619
H31.08632.00441.79001.79003.25723.5608
H41.09082.08411.79001.77602.67982.5071
H51.09082.08411.79001.77602.67982.5071
N62.38131.38753.25722.67982.67981.1763
O72.50282.16193.56082.50712.50711.1763

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 115.430 O2 C1 H3 104.843
O2 C1 H4 110.881 O2 C1 H5 110.881
O2 N6 O7 114.712 H3 C1 H4 110.607
H3 C1 H5 110.607 H4 C1 H5 108.987
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.105      
2 O -0.168      
3 H 0.104      
4 H 0.093      
5 H 0.093      
6 N 0.157      
7 O -0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.166 0.186 0.000 2.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.665 0.479 0.000
y 0.479 -25.250 0.000
z 0.000 0.000 -21.868
Traceless
 xyz
x 1.894 0.479 0.000
y 0.479 -3.484 0.000
z 0.000 0.000 1.589
Polar
3z2-r23.179
x2-y23.585
xy0.479
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 65.278
(<r2>)1/2 8.079