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

using model chemistry: CCSD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-244.620674
Energy at 298.15K-244.625452
HF Energy-243.760666
Nuclear repulsion energy124.095948
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/cc-pVTZ
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' 3199 3011 7.29      
2 A' 3081 2900 14.82      
3 A' 1716 1615 135.53      
4 A' 1519 1430 8.54      
5 A' 1469 1383 1.87      
6 A' 1218 1146 0.51      
7 A' 1071 1008 158.60      
8 A' 901 848 97.60      
9 A' 743 699 82.60      
10 A' 374 352 2.89      
11 A" 3159 2974 18.95      
12 A" 1504 1416 8.41      
13 A" 1185 1115 1.47      
14 A" 354 333 2.26      
15 A" 221 208 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 10857.9 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 10219.5 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/cc-pVTZ
ABC
0.68289 0.25478 0.19226

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.311 0.301 0.000
O2 0.000 0.875 0.000
H3 1.982 1.152 0.000
H4 1.468 -0.310 0.887
H5 1.468 -0.310 -0.887
N6 -1.018 -0.015 0.000
O7 -0.707 -1.154 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43161.08401.08801.08802.35092.4881
O21.43162.00132.08472.08471.35262.1489
H31.08402.00131.78551.78553.21943.5428
H41.08802.08471.78551.77372.65632.4964
H51.08802.08471.78551.77372.65632.4964
N62.35091.35263.21942.65632.65631.1805
O72.48812.14893.54282.49642.49641.1805

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 115.178 O2 C1 H3 104.570
O2 C1 H4 110.930 O2 C1 H5 110.930
O2 N6 O7 115.892 H3 C1 H4 110.581
H3 C1 H5 110.581 H4 C1 H5 109.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability