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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-242.770661
Energy at 298.15K-242.775279
HF Energy-242.272963
Nuclear repulsion energy118.132969
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=FULL/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' 3226 3058 7.83      
2 A' 3099 2937 9.18      
3 A' 1595 1512 6.74      
4 A' 1512 1433 1.72      
5 A' 1174 1112 10.08      
6 A' 1161 1100 8.64      
7 A' 975 924 129.37      
8 A' 815 773 117.13      
9 A' 668 633 72.79      
10 A' 356 337 2.80      
11 A" 3166 3001 25.15      
12 A" 1586 1503 8.53      
13 A" 1178 1117 0.43      
14 A" 338 321 3.16      
15 A" 218 207 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 10532.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9984.3 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=FULL/3-21G*
ABC
0.59309 0.23985 0.17647

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.339 0.312 0.000
O2 0.000 0.963 0.000
H3 2.032 1.151 0.000
H4 1.474 -0.310 0.888
H5 1.474 -0.310 -0.888
N6 -1.098 -0.035 0.000
O7 -0.666 -1.233 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.48881.08801.09301.09302.46182.5318
O21.48882.04112.14082.14081.48372.2953
H31.08802.04111.79851.79853.34763.6009
H41.09302.14081.79851.77662.73532.4945
H51.09302.14081.79851.77662.73532.4945
N62.46181.48373.34762.73532.73531.2743
O72.53182.29533.60092.49452.49451.2743

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 111.828 O2 C1 H3 103.679
O2 C1 H4 111.104 O2 C1 H5 111.104
O2 N6 O7 112.433 H3 C1 H4 111.100
H3 C1 H5 111.100 H4 C1 H5 108.718
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability