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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: MP2=FULL/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=FULL/6-311G*
 hartrees
Energy at 0K-169.426506
Energy at 298.15K-169.430188
HF Energy-168.865939
Nuclear repulsion energy70.225773
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/6-311G*
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' 3202 3032 8.93      
2 A' 3078 2915 2.90      
3 A' 1573 1490 17.07      
4 A' 1496 1417 23.12      
5 A' 1416 1341 34.61      
6 A' 1182 1120 15.19      
7 A' 907 859 14.41      
8 A' 593 561 1.57      
9 A" 3187 3018 4.25      
10 A" 1495 1416 14.35      
11 A" 1008 955 3.23      
12 A" 134 127 1.66      

Unscaled Zero Point Vibrational Energy (zpe) 9634.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 9125.2 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/6-311G*
ABC
2.01245 0.38431 0.34338

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.952 -0.555 0.000
N2 0.000 0.575 0.000
O3 1.163 0.212 0.000
H4 -0.426 -1.511 0.000
H5 -1.583 -0.439 0.884
H6 -1.583 -0.439 -0.884

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47802.25031.09121.09201.0920
N21.47801.21872.12932.07742.0774
O32.25031.21872.34402.95762.9576
H41.09122.12932.34401.80821.8082
H51.09202.07742.95761.80821.7674
H61.09202.07742.95761.80821.7674

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.772 N2 C1 H4 111.051
N2 C1 H5 106.903 N2 C1 H6 106.903
H4 C1 H5 111.835 H4 C1 H6 111.835
H5 C1 H6 108.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability