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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-244.451616
Energy at 298.15K-244.456379
HF Energy-243.723813
Nuclear repulsion energy123.396327
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' 3191 3055 8.94      
2 A' 3066 2935 15.91      
3 A' 1713 1640 135.33      
4 A' 1529 1463 9.76      
5 A' 1483 1420 3.25      
6 A' 1221 1169 0.42      
7 A' 1063 1018 145.71      
8 A' 888 851 77.63      
9 A' 720 689 84.44      
10 A' 375 359 2.66      
11 A" 3145 3011 24.11      
12 A" 1513 1448 9.56      
13 A" 1190 1139 1.15      
14 A" 352 337 3.09      
15 A" 231 221 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 10838.3 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 10376.6 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 QCISD/6-311G*
ABC
0.68031 0.25046 0.18968

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 1.319 0.317 0.000
O2 0.000 0.885 0.000
H3 1.982 1.182 0.000
H4 1.480 -0.294 0.893
H5 1.480 -0.294 -0.893
N6 -1.040 -0.034 0.000
O7 -0.697 -1.167 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.43621.08951.09381.09382.38502.5034
O21.43622.00382.09202.09201.38762.1668
H31.08952.00381.79681.79683.25703.5626
H41.09382.09201.79681.78532.68562.5092
H51.09382.09201.79681.78532.68562.5092
N62.38501.38763.25702.68562.68561.1837
O72.50342.16683.56262.50922.50921.1837

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 115.252 O2 C1 H3 104.160
O2 C1 H4 110.835 O2 C1 H5 110.835
O2 N6 O7 114.626 H3 C1 H4 110.771
H3 C1 H5 110.771 H4 C1 H5 109.395
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability