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: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-207.756383
Energy at 298.15K 
HF Energy-207.756383
Nuclear repulsion energy103.716846
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 B97D3/6-31G*
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' 3218 3155 3.79 66.13 0.69 0.82
2 A' 3126 3065 4.59 144.80 0.13 0.22
3 A' 3100 3039 15.59 45.24 0.50 0.67
4 A' 1645 1612 0.93 17.20 0.13 0.24
5 A' 1523 1494 103.34 35.44 0.31 0.47
6 A' 1399 1372 20.76 20.81 0.37 0.54
7 A' 1267 1242 0.73 8.12 0.52 0.68
8 A' 1116 1094 67.73 19.08 0.51 0.68
9 A' 865 848 36.65 0.09 0.22 0.37
10 A' 597 585 0.74 8.67 0.27 0.42
11 A' 337 331 1.23 0.88 0.67 0.80
12 A" 986 967 31.63 0.12 0.75 0.86
13 A" 961 942 17.23 0.94 0.75 0.86
14 A" 650 638 0.29 7.53 0.75 0.86
15 A" 178 175 0.12 1.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10483.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 10278.0 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 B97D3/6-31G*
ABC
1.74417 0.16710 0.15249

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.217 1.227 0.000
C2 0.000 0.651 0.000
N3 -0.041 -0.784 0.000
O4 -1.189 -1.234 0.000
H5 2.108 0.598 0.000
H6 1.348 2.309 0.000
H7 -0.955 1.187 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.34672.37223.44261.09101.08952.1724
C21.34671.43522.22922.10902.13661.0951
N32.37221.43521.23342.55523.39012.1723
O43.44262.22921.23343.77254.35802.4331
H51.09102.10902.55523.77251.87253.1194
H61.08952.13663.39014.35801.87252.5612
H72.17241.09512.17232.43313.11942.5612

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 116.979 C1 C2 H7 125.346
C2 C1 H5 119.433 C2 C1 H6 122.219
C2 N3 O4 113.088 N3 C2 H7 117.674
H5 C1 H6 118.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C 0.060      
3 N -0.008      
4 O -0.273      
5 H 0.189      
6 H 0.182      
7 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.410 2.905 0.000 3.229
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.047 -0.027 0.000
y -0.027 -22.845 0.000
z 0.000 0.000 -23.065
Traceless
 xyz
x 0.909 -0.027 0.000
y -0.027 -0.289 0.000
z 0.000 0.000 -0.620
Polar
3z2-r2-1.239
x2-y20.799
xy-0.027
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.408 2.167 0.000
y 2.167 6.163 0.000
z 0.000 0.000 1.994


<r2> (average value of r2) Å2
<r2> 76.705
(<r2>)1/2 8.758