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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-169.345153
Energy at 298.15K-169.348857
HF Energy-168.834218
Nuclear repulsion energy69.919986
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/6-31+G**
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' 3248 3050 7.74      
2 A' 3116 2927 2.55      
3 A' 1546 1452 12.21      
4 A' 1502 1411 24.45      
5 A' 1423 1336 27.50      
6 A' 1182 1110 13.30      
7 A' 916 860 13.54      
8 A' 585 549 1.81      
9 A" 3231 3034 2.63      
10 A" 1508 1416 12.65      
11 A" 1004 943 4.59      
12 A" 150 140 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 9703.9 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 9113.9 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/6-31+G**
ABC
1.99690 0.38179 0.34077

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.961 -0.543 0.000
N2 0.000 0.576 0.000
O3 1.175 0.195 0.000
H4 -0.450 -1.503 0.000
H5 -1.589 -0.418 0.881
H6 -1.589 -0.418 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47542.26001.08781.08871.0887
N21.47541.23472.12742.07072.0707
O32.26001.23472.35042.96442.9644
H41.08782.12742.35041.80321.8032
H51.08872.07072.96441.80321.7616
H61.08872.07072.96441.80321.7616

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.704 N2 C1 H4 111.293
N2 C1 H5 106.746 N2 C1 H6 106.746
H4 C1 H5 111.882 H4 C1 H6 111.882
H5 C1 H6 108.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability