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: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-207.720664
Energy at 298.15K 
HF Energy-207.720664
Nuclear repulsion energy105.202079
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 PBE1PBE/aug-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' 3267 3141 0.17 57.75 0.67 0.80
2 A' 3175 3053 4.06 175.02 0.12 0.22
3 A' 3159 3037 2.64 17.75 0.62 0.76
4 A' 1699 1634 8.44 27.70 0.04 0.08
5 A' 1630 1567 140.75 96.91 0.37 0.54
6 A' 1411 1356 26.20 20.62 0.38 0.55
7 A' 1283 1234 2.73 7.84 0.25 0.40
8 A' 1154 1109 78.36 26.70 0.39 0.56
9 A' 899 865 28.73 0.32 0.60 0.75
10 A' 620 596 1.51 9.67 0.10 0.19
11 A' 349 336 1.03 0.77 0.67 0.80
12 A" 1016 977 9.78 3.69 0.75 0.86
13 A" 1005 967 46.67 0.23 0.75 0.86
14 A" 687 661 1.09 0.64 0.75 0.86
15 A" 178 171 0.10 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10765.5 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 10351.1 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 PBE1PBE/aug-cc-pVTZ
ABC
1.79551 0.17153 0.15657

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.205 1.207 0.000
C2 0.000 0.648 0.000
N3 -0.051 -0.771 0.000
O4 -1.169 -1.220 0.000
H5 2.085 0.574 0.000
H6 1.339 2.280 0.000
H7 -0.947 1.180 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.32872.34303.39531.08371.08182.1531
C21.32871.41982.20382.08672.11101.0868
N32.34301.41981.20512.52453.35272.1474
O43.39532.20381.20513.71644.30602.4107
H51.08372.08672.52453.71641.86243.0928
H61.08182.11103.35274.30601.86242.5369
H72.15311.08682.14742.41073.09282.5369

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 116.926 C1 C2 H7 125.797
C2 C1 H5 119.419 C2 C1 H6 121.941
C2 N3 O4 113.942 N3 C2 H7 117.277
H5 C1 H6 118.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.710      
2 C -0.154      
3 N -0.046      
4 O -0.389      
5 H 0.408      
6 H 0.344      
7 H 0.546      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.422 2.932 0.000 3.259
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.695 0.013 0.000
y 0.013 -23.382 0.000
z 0.000 0.000 -23.827
Traceless
 xyz
x 0.910 0.013 0.000
y 0.013 -0.121 0.000
z 0.000 0.000 -0.789
Polar
3z2-r2-1.578
x2-y20.687
xy0.013
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.370 2.029 0.000
y 2.029 7.047 0.000
z 0.000 0.000 3.854


<r2> (average value of r2) Å2
<r2> 75.513
(<r2>)1/2 8.690