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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBEPBE/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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-169.620180
Energy at 298.15K-169.623826
HF Energy-169.620180
Nuclear repulsion energy69.709978
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 PBEPBE/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' 3085 3049 11.74      
2 A' 2958 2924 1.52      
3 A' 1596 1578 94.47      
4 A' 1401 1385 31.14      
5 A' 1309 1295 41.11      
6 A' 1111 1098 20.77      
7 A' 808 798 42.17      
8 A' 554 548 0.53      
9 A" 3052 3017 0.70      
10 A" 1396 1380 16.32      
11 A" 919 908 1.65      
12 A" 169 167 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 9178.1 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 9073.5 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 PBEPBE/6-31+G**
ABC
2.01351 0.37604 0.33693

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.956 -0.571 0.000
N2 0.000 0.573 0.000
O3 1.172 0.230 0.000
H4 -0.440 -1.545 0.000
H5 -1.601 -0.440 0.887
H6 -1.601 -0.440 -0.887

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49022.27391.10211.10441.1044
N21.49021.22132.16262.09162.0916
O32.27391.22132.39812.98792.9879
H41.10212.16262.39811.83171.8317
H51.10442.09162.98791.83171.7731
H61.10442.09162.98791.83171.7731

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.618 N2 C1 H4 112.211
N2 C1 H5 106.488 N2 C1 H6 106.488
H4 C1 H5 112.226 H4 C1 H6 112.226
H5 C1 H6 106.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.483      
2 N -0.046      
3 O -0.057      
4 H 0.190      
5 H 0.197      
6 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.083 -1.426 0.000 2.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.606 0.463 0.000
y 0.463 -19.755 0.000
z 0.000 0.000 -16.975
Traceless
 xyz
x -0.241 0.463 0.000
y 0.463 -1.964 0.000
z 0.000 0.000 2.205
Polar
3z2-r24.410
x2-y21.149
xy0.463
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.348 0.441 0.000
y 0.441 3.995 0.000
z 0.000 0.000 3.041


<r2> (average value of r2) Å2
<r2> 42.337
(<r2>)1/2 6.507