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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-49.129763
Energy at 298.15K-49.134226
Nuclear repulsion energy66.666559
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-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' 3208 3106 16.30      
2 A' 3063 2966 18.66      
3 A' 1493 1446 111.16      
4 A' 1489 1442 14.49      
5 A' 1428 1383 31.30      
6 A' 1154 1117 0.26      
7 A' 944 914 143.98      
8 A' 808 783 62.51      
9 A' 663 642 56.37      
10 A' 304 295 3.83      
11 A" 3166 3066 39.90      
12 A" 1475 1429 14.12      
13 A" 1126 1091 0.08      
14 A" 339 329 5.58      
15 A" 159 154 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 10409.2 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 10080.3 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-31G
ABC
0.63241 0.22681 0.17254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.386 0.354 0.000
O2 0.000 0.915 0.000
H3 2.022 1.248 0.000
H4 1.549 -0.257 0.902
H5 1.549 -0.257 -0.902
N6 -1.091 -0.041 0.000
O7 -0.725 -1.236 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.49561.09681.10111.10112.50902.6426
O21.49562.04912.14132.14131.45042.2691
H31.09682.04911.81681.81683.36923.7028
H41.10112.14131.81681.80362.79862.6347
H51.10112.14131.81681.80362.79862.6347
N62.50901.45043.36922.79862.79861.2500
O72.64262.26913.70282.63472.63471.2500

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 116.778 O2 C1 H3 103.373
O2 C1 H4 110.172 O2 C1 H5 110.172
O2 N6 O7 114.140 H3 C1 H4 111.497
H3 C1 H5 111.497 H4 C1 H5 109.967
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 O -0.167      
3 H 0.224      
4 H 0.205      
5 H 0.205      
6 N 0.072      
7 O -0.107      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.874 0.095 0.000 2.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.421 0.602 0.000
y 0.602 -26.997 0.000
z 0.000 0.000 -21.945
Traceless
 xyz
x 3.050 0.602 0.000
y 0.602 -5.314 0.000
z 0.000 0.000 2.264
Polar
3z2-r24.527
x2-y25.576
xy0.602
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> 58.337
(<r2>)1/2 7.638