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

using model chemistry: MP2=FULL/6-311G*

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 MP2=FULL/6-311G*
 hartrees
Energy at 0K-244.508183
Energy at 298.15K-244.512531
HF Energy-243.722637
Nuclear repulsion energy123.385235
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 MP2=FULL/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3199 3029 11.14      
2 A' 3094 2930 35.89      
3 A' 1670 1581 143.84      
4 A' 1553 1471 7.98      
5 A' 1500 1421 5.84      
6 A' 1231 1166 29.34      
7 A' 1103 1045 61.41      
8 A' 861 816 427.69      
9 A' 602 570 93.30      
10 A' 387 367 10.98      
11 A" 3202 3033 22.35      
12 A" 1527 1446 5.57      
13 A" 1201 1137 0.60      
14 A" 234 222 0.96      
15 A" 89 84 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 10726.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 10159.1 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 MP2=FULL/6-311G*
ABC
0.67455 0.25234 0.19025

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.314 0.313 0.000
O2 0.000 0.888 0.000
H3 1.978 1.172 0.000
H4 1.469 -0.299 0.889
H5 1.469 -0.299 -0.889
N6 -1.038 -0.027 0.000
O7 -0.691 -1.170 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43401.08551.09081.09082.37682.4942
O21.43401.99862.08742.08741.38402.1708
H31.08551.99861.79271.79273.24623.5512
H41.09082.08741.79271.77842.67412.4931
H51.09082.08741.79271.77842.67412.4931
N62.37681.38403.24622.67412.67411.1942
O72.49422.17083.55122.49312.49311.1942

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 114.995 O2 C1 H3 104.127
O2 C1 H4 110.800 O2 C1 H5 110.800
O2 N6 O7 114.499 H3 C1 H4 110.921
H3 C1 H5 110.921 H4 C1 H5 109.209
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability