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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-169.392748
Energy at 298.15K-169.396436
HF Energy-168.870488
Nuclear repulsion energy70.150139
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 MP2/6-311G**
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' 3195 3035 9.07      
2 A' 3072 2919 3.26      
3 A' 1566 1488 19.80      
4 A' 1477 1403 19.21      
5 A' 1397 1327 25.37      
6 A' 1170 1111 16.31      
7 A' 899 854 14.72      
8 A' 586 557 1.49      
9 A" 3181 3023 4.63      
10 A" 1482 1408 11.34      
11 A" 992 942 4.40      
12 A" 141 134 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 9578.3 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 9101.3 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 MP2/6-311G**
ABC
2.00200 0.38378 0.34273

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.953 -0.558 0.000
N2 0.000 0.577 0.000
O3 1.163 0.213 0.000
H4 -0.423 -1.513 0.000
H5 -1.584 -0.442 0.885
H6 -1.584 -0.442 -0.885

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48172.25181.09271.09321.0932
N21.48171.21912.13322.08082.0808
O32.25181.21912.34452.95932.9593
H41.09272.13322.34451.81071.8107
H51.09322.08082.95931.81071.7705
H61.09322.08082.95931.81071.7705

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.612 N2 C1 H4 111.011
N2 C1 H5 106.855 N2 C1 H6 106.855
H4 C1 H5 111.857 H4 C1 H6 111.857
H5 C1 H6 108.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability