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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-244.370983
Energy at 298.15K-244.375729
HF Energy-243.681838
Nuclear repulsion energy122.815230
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/cc-pVDZ
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' 3246 3092 5.91      
2 A' 3092 2945 15.27      
3 A' 1602 1526 97.46      
4 A' 1495 1424 8.33      
5 A' 1443 1374 2.80      
6 A' 1189 1133 1.09      
7 A' 1049 999 125.53      
8 A' 876 834 103.56      
9 A' 680 648 151.08      
10 A' 369 352 1.40      
11 A" 3186 3035 21.12      
12 A" 1480 1410 8.45      
13 A" 1166 1110 1.33      
14 A" 373 355 2.05      
15 A" 225 214 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 10735.1 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 10225.2 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/cc-pVDZ
ABC
0.66432 0.25173 0.18918

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.310 0.313 0.000
O2 0.000 0.898 0.000
H3 1.993 1.171 0.000
H4 1.468 -0.309 0.896
H5 1.468 -0.309 -0.896
N6 -1.044 -0.031 0.000
O7 -0.685 -1.175 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43501.09661.10211.10212.37972.4896
O21.43502.01202.10122.10121.39822.1841
H31.09662.01201.80841.80843.26713.5610
H41.10212.10121.80841.79132.68142.4874
H51.10212.10121.80841.79132.68142.4874
N62.37971.39823.26712.68142.68141.1992
O72.48962.18413.56102.48742.48741.1992

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 114.262 O2 C1 H3 104.468
O2 C1 H4 111.147 O2 C1 H5 111.147
O2 N6 O7 114.245 H3 C1 H4 110.668
H3 C1 H5 110.668 H4 C1 H5 108.718
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability