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 C2H3NO (Nitrosoethylene)

using model chemistry: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-207.804904
Energy at 298.15K 
HF Energy-207.804904
Nuclear repulsion energy104.691450
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/6-31G*
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' 3298 3129 1.15 60.08 0.69 0.81
2 A' 3215 3049 5.65 137.79 0.19 0.32
3 A' 3195 3031 2.41 22.67 0.22 0.36
4 A' 1735 1646 2.55 20.27 0.14 0.25
5 A' 1680 1593 122.23 74.36 0.29 0.45
6 A' 1441 1367 20.78 22.14 0.40 0.57
7 A' 1305 1238 1.19 7.39 0.52 0.68
8 A' 1175 1115 67.21 24.46 0.50 0.67
9 A' 914 867 28.75 0.17 0.74 0.85
10 A' 623 590 1.77 6.31 0.27 0.42
11 A' 350 332 1.45 0.53 0.68 0.81
12 A" 1023 970 57.57 0.54 0.75 0.86
13 A" 1020 967 2.55 1.49 0.75 0.86
14 A" 689 653 0.85 8.69 0.75 0.86
15 A" 175 166 0.07 1.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10918.7 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 10356.4 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/6-31G*
ABC
1.76720 0.17022 0.15527

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.204 1.218 0.000
C2 0.000 0.648 0.000
N3 -0.043 -0.782 0.000
O4 -1.174 -1.223 0.000
H5 2.095 0.596 0.000
H6 1.329 2.295 0.000
H7 -0.953 1.174 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33192.35663.40761.08611.08462.1574
C21.33191.43072.20892.09542.11631.0886
N32.35661.43071.21412.54343.36902.1575
O43.40762.20891.21413.74094.31762.4072
H51.08612.09542.54343.74091.86343.1020
H61.08462.11633.36904.31761.86342.5425
H72.15741.08862.15752.40723.10202.5425

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.039 C1 C2 H7 125.780
C2 C1 H5 119.776 C2 C1 H6 121.943
C2 N3 O4 113.011 N3 C2 H7 117.180
H5 C1 H6 118.281
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.357      
2 C 0.019      
3 N 0.015      
4 O -0.283      
5 H 0.211      
6 H 0.202      
7 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.371 2.853 0.000 3.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.972 -0.097 0.000
y -0.097 -22.870 0.000
z 0.000 0.000 -23.200
Traceless
 xyz
x 1.063 -0.097 0.000
y -0.097 -0.283 0.000
z 0.000 0.000 -0.779
Polar
3z2-r2-1.558
x2-y20.897
xy-0.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.281 2.096 0.000
y 2.096 5.747 0.000
z 0.000 0.000 1.974


<r2> (average value of r2) Å2
<r2> 75.629
(<r2>)1/2 8.696