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

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-244.474753
Energy at 298.15K-244.479512
Nuclear repulsion energy123.407899
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 QCISD/6-311G**
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' 3201 3054 8.99      
2 A' 3076 2935 16.26      
3 A' 1715 1636 133.32      
4 A' 1521 1451 9.12      
5 A' 1479 1411 2.52      
6 A' 1217 1162 0.69      
7 A' 1065 1016 143.05      
8 A' 886 846 80.67      
9 A' 713 680 87.36      
10 A' 374 357 2.36      
11 A" 3153 3008 24.87      
12 A" 1503 1434 7.50      
13 A" 1188 1133 1.98      
14 A" 350 334 2.82      
15 A" 225 215 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 10832.4 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 10335.2 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 QCISD/6-311G**
ABC
0.67932 0.25090 0.18985

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.317 0.317 0.000
O2 0.000 0.887 0.000
H3 1.983 1.179 0.000
H4 1.477 -0.296 0.892
H5 1.477 -0.296 -0.892
N6 -1.040 -0.035 0.000
O7 -0.695 -1.167 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43531.08941.09391.09392.38352.4993
O21.43532.00422.09212.09211.39022.1678
H31.08942.00421.79651.79653.25793.5595
H41.09392.09211.79651.78382.68342.5037
H51.09392.09211.79651.78382.68342.5037
N62.38351.39023.25792.68342.68341.1830
O72.49932.16783.55952.50372.50371.1830

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 115.034 O2 C1 H3 104.259
O2 C1 H4 110.899 O2 C1 H5 110.899
O2 N6 O7 114.558 H3 C1 H4 110.740
H3 C1 H5 110.740 H4 C1 H5 109.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability