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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-169.793692
Energy at 298.15K-169.797404
HF Energy-169.793692
Nuclear repulsion energy70.802979
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 mPW1PW91/6-311G**
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' 3161 3024 11.65      
2 A' 3043 2911 2.39      
3 A' 1730 1655 87.17      
4 A' 1454 1391 25.95      
5 A' 1372 1313 30.22      
6 A' 1164 1114 19.39      
7 A' 867 829 23.93      
8 A' 583 558 1.74      
9 A" 3137 3001 3.32      
10 A" 1453 1390 14.55      
11 A" 972 930 2.29      
12 A" 165 158 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 9550.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9136.7 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 mPW1PW91/6-311G**
ABC
2.07489 0.38707 0.34719

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.938 -0.573 0.000
N2 0.000 0.566 0.000
O3 1.149 0.240 0.000
H4 -0.411 -1.528 0.000
H5 -1.576 -0.456 0.880
H6 -1.576 -0.456 -0.880

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47502.23981.09131.09291.0929
N21.47501.19432.13392.07392.0739
O32.23981.19432.35822.94662.9466
H41.09132.13392.35821.81101.8110
H51.09292.07392.94661.81101.7602
H61.09292.07392.94661.81101.7602

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.671 N2 C1 H4 111.635
N2 C1 H5 106.785 N2 C1 H6 106.785
H4 C1 H5 112.015 H4 C1 H6 112.015
H5 C1 H6 107.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.240      
2 N 0.019      
3 O -0.199      
4 H 0.127      
5 H 0.146      
6 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.990 -1.336 0.000 2.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.206 0.355 0.000
y 0.355 -19.034 0.000
z 0.000 0.000 -16.466
Traceless
 xyz
x -0.456 0.355 0.000
y 0.355 -1.698 0.000
z 0.000 0.000 2.154
Polar
3z2-r24.307
x2-y20.828
xy0.355
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.380 0.340 0.000
y 0.340 3.081 0.000
z 0.000 0.000 2.519


<r2> (average value of r2) Å2
<r2> 41.126
(<r2>)1/2 6.413