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

using model chemistry: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-244.341982
Energy at 298.15K-244.346744
HF Energy-243.662186
Nuclear repulsion energy122.973068
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 CCSD/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' 3221 3041 8.07      
2 A' 3099 2927 13.23      
3 A' 1709 1614 121.07      
4 A' 1541 1455 7.97      
5 A' 1489 1406 3.20      
6 A' 1221 1153 0.53      
7 A' 1070 1010 162.61      
8 A' 900 850 84.08      
9 A' 743 702 62.30      
10 A' 376 355 3.43      
11 A" 3182 3005 19.58      
12 A" 1531 1446 7.78      
13 A" 1186 1120 1.44      
14 A" 358 338 3.32      
15 A" 224 212 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 10924.9 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 10316.4 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 CCSD/6-31G*
ABC
0.66891 0.25088 0.18903

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.325 0.314 0.000
O2 0.000 0.878 0.000
H3 1.986 1.182 0.000
H4 1.490 -0.297 0.893
H5 1.490 -0.297 -0.893
N6 -1.028 -0.018 0.000
O7 -0.716 -1.171 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.44031.09031.09451.09452.37622.5242
O21.44032.00882.09732.09731.36312.1707
H31.09032.00881.79711.79713.24323.5824
H41.09452.09731.79711.78592.68602.5351
H51.09452.09731.79711.78592.68602.5351
N62.37621.36313.24322.68602.68601.1953
O72.52422.17073.58242.53512.53511.1953

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 115.875 O2 C1 H3 104.226
O2 C1 H4 110.928 O2 C1 H5 110.928
O2 N6 O7 115.937 H3 C1 H4 110.675
H3 C1 H5 110.675 H4 C1 H5 109.338
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability