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: PBEPBEultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-207.721997
Energy at 298.15K 
HF Energy-207.721997
Nuclear repulsion energy104.075641
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 PBEPBEultrafine/cc-pVTZ
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' 3179 3157 0.88 64.51 0.67 0.81
2 A' 3083 3062 2.83 169.06 0.12 0.22
3 A' 3060 3038 10.75 51.54 0.50 0.67
4 A' 1621 1610 1.81 22.63 0.10 0.18
5 A' 1499 1489 109.42 41.69 0.41 0.58
6 A' 1361 1352 25.79 16.56 0.46 0.63
7 A' 1238 1229 2.50 7.52 0.43 0.60
8 A' 1094 1086 70.29 19.76 0.40 0.57
9 A' 852 846 34.18 0.25 0.20 0.34
10 A' 594 590 0.65 9.75 0.22 0.36
11 A' 333 331 1.32 1.15 0.74 0.85
12 A" 975 968 17.13 1.06 0.75 0.86
13 A" 969 962 30.42 1.37 0.75 0.86
14 A" 655 651 0.67 3.99 0.75 0.86
15 A" 174 173 0.09 0.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10343.6 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 10272.2 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 PBEPBEultrafine/cc-pVTZ
ABC
1.75886 0.16818 0.15350

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.214 1.221 0.000
C2 0.000 0.652 0.000
N3 -0.044 -0.777 0.000
O4 -1.183 -1.234 0.000
H5 2.098 0.581 0.000
H6 1.350 2.302 0.000
H7 -0.956 1.186 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.34062.36153.43121.09131.08902.1706
C21.34061.43042.22662.09932.13141.0954
N32.36151.43041.22722.53683.38002.1653
O43.43122.22661.22723.75004.34942.4307
H51.09132.09932.53683.75001.87573.1138
H61.08902.13143.38004.34941.87572.5621
H72.17061.09542.16532.43073.11382.5621

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 116.875 C1 C2 H7 125.718
C2 C1 H5 119.004 C2 C1 H6 122.295
C2 N3 O4 113.602 N3 C2 H7 117.407
H5 C1 H6 118.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
2 C -0.006      
3 N 0.044      
4 O -0.180      
5 H 0.122      
6 H 0.134      
7 H 0.075      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.372 2.843 0.000 3.157
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.747 0.073 0.000
y 0.073 -23.282 0.000
z 0.000 0.000 -23.622
Traceless
 xyz
x 0.706 0.073 0.000
y 0.073 -0.098 0.000
z 0.000 0.000 -0.608
Polar
3z2-r2-1.216
x2-y20.535
xy0.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.089 2.089 0.000
y 2.089 6.803 0.000
z 0.000 0.000 2.963


<r2> (average value of r2) Å2
<r2> 76.649
(<r2>)1/2 8.755