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

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-244.427452
Energy at 298.15K-244.431694
HF Energy-243.699560
Nuclear repulsion energy122.336797
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/aug-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' 3189 3058 8.48      
2 A' 3079 2953 39.65      
3 A' 1629 1562 161.32      
4 A' 1502 1440 6.53      
5 A' 1443 1384 3.28      
6 A' 1192 1143 32.83      
7 A' 1053 1010 52.21      
8 A' 800 767 403.84      
9 A' 553 531 163.82      
10 A' 372 356 14.89      
11 A" 3193 3062 15.56      
12 A" 1477 1416 4.88      
13 A" 1164 1116 0.82      
14 A" 224 215 0.89      
15 A" 79 75 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 10473.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 10043.8 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/aug-cc-pVDZ
ABC
1.55509 0.16379 0.15258

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.318 0.308 0.000
O2 0.000 0.906 0.000
H3 2.000 1.165 0.000
H4 1.461 -0.311 0.898
H5 1.461 -0.311 -0.898
N6 -1.050 -0.031 0.000
O7 -0.685 -1.177 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.44711.09511.09991.09992.39242.4937
O21.44712.01672.10222.10221.40732.1927
H31.09512.01671.80971.80973.27633.5630
H41.09992.10221.80971.79592.68122.4821
H51.09992.10221.80971.79592.68122.4821
N62.39241.40733.27632.68122.68121.2030
O72.49372.19273.56302.48212.48211.2030

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 113.879 O2 C1 H3 104.135
O2 C1 H4 110.517 O2 C1 H5 110.517
O2 N6 O7 114.057 H3 C1 H4 111.069
H3 C1 H5 111.069 H4 C1 H5 109.451
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability