return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-169.782830
Energy at 298.15K-169.786458
HF Energy-169.782830
Nuclear repulsion energy70.732256
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 wB97X-D/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' 3158 3021 11.32      
2 A' 3042 2910 2.96      
3 A' 1737 1661 82.39      
4 A' 1457 1394 23.28      
5 A' 1379 1319 29.21      
6 A' 1169 1118 18.53      
7 A' 877 839 20.46      
8 A' 590 564 2.10      
9 A" 3139 3003 4.43      
10 A" 1456 1392 14.82      
11 A" 973 930 2.48      
12 A" 110 105 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 9542.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 9127.7 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 wB97X-D/6-311G**
ABC
2.06586 0.38654 0.34661

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.939 -0.573 0.000
N2 0.000 0.567 0.000
O3 1.150 0.239 0.000
H4 -0.410 -1.529 0.000
H5 -1.575 -0.459 0.882
H6 -1.575 -0.459 -0.882

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47772.24141.09231.09331.0933
N21.47771.19542.13552.07662.0766
O32.24141.19542.35722.94782.9478
H41.09232.13552.35721.81121.8112
H51.09332.07662.94781.81121.7639
H61.09332.07662.94781.81121.7639

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.549 N2 C1 H4 111.514
N2 C1 H5 106.798 N2 C1 H6 106.798
H4 C1 H5 111.935 H4 C1 H6 111.935
H5 C1 H6 107.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.241      
2 N 0.023      
3 O -0.198      
4 H 0.127      
5 H 0.145      
6 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.020 -1.363 0.000 2.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.233 0.368 0.000
y 0.368 -19.022 0.000
z 0.000 0.000 -16.461
Traceless
 xyz
x -0.492 0.368 0.000
y 0.368 -1.675 0.000
z 0.000 0.000 2.167
Polar
3z2-r24.334
x2-y20.789
xy0.368
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.340 0.300 0.000
y 0.300 3.035 0.000
z 0.000 0.000 2.524


<r2> (average value of r2) Å2
<r2> 41.177
(<r2>)1/2 6.417