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

using model chemistry: CISD/3-21G

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 CISD/3-21G
 hartrees
Energy at 0K-242.708107
Energy at 298.15K-242.712822
Nuclear repulsion energy120.188663
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 CISD/3-21G
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' 3254 3063 6.96      
2 A' 3145 2961 9.50      
3 A' 1617 1522 7.74      
4 A' 1542 1452 0.77      
5 A' 1427 1343 63.00      
6 A' 1214 1143 0.46      
7 A' 1038 977 153.03      
8 A' 857 807 76.39      
9 A' 725 683 33.06      
10 A' 368 346 4.26      
11 A" 3212 3024 23.33      
12 A" 1603 1509 9.00      
13 A" 1206 1135 0.91      
14 A" 325 306 5.38      
15 A" 228 214 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 10880.3 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 10241.6 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 CISD/3-21G
ABC
0.62765 0.24301 0.18116

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.339 0.311 0.000
O2 0.000 0.933 0.000
H3 2.017 1.159 0.000
H4 1.482 -0.303 0.888
H5 1.482 -0.303 -0.888
N6 -1.080 -0.041 0.000
O7 -0.682 -1.199 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.47621.08531.08871.08872.44422.5229
O21.47622.02942.12402.12401.45452.2387
H31.08532.02941.79131.79133.32103.5837
H41.08872.12401.79131.77532.72392.5050
H51.08872.12401.79131.77532.72392.5050
N62.44421.45453.32102.72392.72391.2244
O72.52292.23873.58372.50502.50501.2244

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 113.025 O2 C1 H3 103.750
O2 C1 H4 110.910 O2 C1 H5 110.910
O2 N6 O7 113.095 H3 C1 H4 110.978
H3 C1 H5 110.978 H4 C1 H5 109.242
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability