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: B97D3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/Def2TZVPP
 hartrees
Energy at 0K-207.845065
Energy at 298.15K 
HF Energy-207.845065
Nuclear repulsion energy104.244306
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 B97D3/Def2TZVPP
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' 3199 3155 1.90 63.54 0.68 0.81
2 A' 3104 3062 4.30 171.69 0.12 0.21
3 A' 3082 3039 13.43 49.06 0.50 0.67
4 A' 1627 1605 1.87 26.42 0.08 0.15
5 A' 1507 1486 121.24 46.34 0.39 0.56
6 A' 1385 1366 24.33 20.75 0.39 0.56
7 A' 1258 1240 1.23 8.66 0.34 0.51
8 A' 1101 1086 75.56 21.34 0.43 0.60
9 A' 857 845 42.59 0.24 0.29 0.45
10 A' 598 590 0.34 10.05 0.19 0.32
11 A' 343 338 1.25 1.12 0.68 0.81
12 A" 982 968 12.65 1.23 0.75 0.86
13 A" 980 967 35.53 1.63 0.75 0.86
14 A" 656 647 0.60 2.48 0.75 0.86
15 A" 176 173 0.09 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10426.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 10283.7 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 B97D3/Def2TZVPP
ABC
1.77145 0.16829 0.15369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.213 1.221 0.000
C2 0.000 0.652 0.000
N3 -0.047 -0.777 0.000
O4 -1.180 -1.235 0.000
H5 2.098 0.591 0.000
H6 1.343 2.299 0.000
H7 -0.950 1.190 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33952.36293.42901.08701.08512.1624
C21.33951.43072.22582.09932.12471.0911
N32.36291.43071.22132.54523.37582.1644
O43.42902.22581.22133.75264.34192.4359
H51.08702.09932.54523.75261.86683.1062
H61.08512.12473.37584.34191.86682.5468
H72.16241.09112.16442.43593.10622.5468

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.033 C1 C2 H7 125.349
C2 C1 H5 119.438 C2 C1 H6 122.049
C2 N3 O4 113.899 N3 C2 H7 117.618
H5 C1 H6 118.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 C -0.014      
3 N 0.067      
4 O -0.228      
5 H 0.094      
6 H 0.106      
7 H 0.069      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.428 2.956 0.000 3.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.735 0.002 0.000
y 0.002 -23.366 0.000
z 0.000 0.000 -23.561
Traceless
 xyz
x 0.728 0.002 0.000
y 0.002 -0.218 0.000
z 0.000 0.000 -0.510
Polar
3z2-r2-1.021
x2-y20.631
xy0.002
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.184 2.199 0.000
y 2.199 6.963 0.000
z 0.000 0.000 3.309


<r2> (average value of r2) Å2
<r2> 76.574
(<r2>)1/2 8.751