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

using model chemistry: MP2=FULL/6-31G*

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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-244.339114
Energy at 298.15K-244.343873
HF Energy-243.659648
Nuclear repulsion energy122.677831
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/6-31G*
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' 3267 3078 5.30      
2 A' 3125 2944 11.26      
3 A' 1585 1493 91.29      
4 A' 1551 1462 6.34      
5 A' 1491 1405 8.83      
6 A' 1214 1144 1.44      
7 A' 1053 992 154.03      
8 A' 886 835 102.65      
9 A' 717 676 107.36      
10 A' 370 348 2.63      
11 A" 3217 3031 15.56      
12 A" 1542 1453 8.77      
13 A" 1192 1123 1.06      
14 A" 378 356 2.41      
15 A" 225 212 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 10906.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 10276.3 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 MP2=FULL/6-31G*
ABC
0.66046 0.25164 0.18874

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.321 0.314 0.000
O2 0.000 0.884 0.000
H3 1.984 1.176 0.000
H4 1.481 -0.298 0.890
H5 1.481 -0.298 -0.890
N6 -1.027 -0.017 0.000
O7 -0.711 -1.177 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43921.08711.09211.09212.37162.5202
O21.43922.00542.09342.09341.36612.1801
H31.08712.00541.79381.79383.23863.5771
H41.09212.09341.79381.78102.67592.5233
H51.09212.09341.79381.78102.67592.5233
N62.37161.36613.23862.67592.67591.2027
O72.52022.18013.57712.52332.52331.2027

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 115.408 O2 C1 H3 104.217
O2 C1 H4 110.843 O2 C1 H5 110.843
O2 N6 O7 115.993 H3 C1 H4 110.807
H3 C1 H5 110.807 H4 C1 H5 109.261
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability