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All results from a given calculation for CH3NO (nitrosomethane)

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

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/6-31G
 hartrees
Energy at 0K-169.082204
Energy at 298.15K-169.085842
HF Energy-168.728436
Nuclear repulsion energy68.015852
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/6-31G
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' 3182 3023 10.43      
2 A' 3066 2913 3.18      
3 A' 1535 1459 16.95      
4 A' 1461 1388 8.81      
5 A' 1298 1233 9.57      
6 A' 1152 1094 14.65      
7 A' 851 808 13.23      
8 A' 553 526 1.84      
9 A" 3175 3017 6.32      
10 A" 1533 1456 11.92      
11 A" 1028 977 2.52      
12 A" 137 131 2.43      

Unscaled Zero Point Vibrational Energy (zpe) 9485.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 9012.6 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 MP2=FULL/6-31G
ABC
1.89329 0.36133 0.32198

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.998 -0.540 0.000
N2 0.000 0.594 0.000
O3 1.216 0.178 0.000
H4 -0.491 -1.513 0.000
H5 -1.625 -0.415 0.891
H6 -1.625 -0.415 -0.891

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.51092.32781.09681.09661.0966
N21.51091.28552.16332.11002.1100
O32.32781.28552.40273.03583.0358
H41.09682.16332.40271.81211.8121
H51.09662.11003.03581.81211.7825
H61.09662.11003.03581.81211.7825

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.454 N2 C1 H4 111.122
N2 C1 H5 106.969 N2 C1 H6 106.969
H4 C1 H5 111.419 H4 C1 H6 111.419
H5 C1 H6 108.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability