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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-37.977793
Energy at 298.15K 
HF Energy-37.977793
Nuclear repulsion energy56.313462
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 HF/CEP-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' 3457 3104 12.05 57.92 0.69 0.82
2 A' 3401 3054 6.74 94.17 0.36 0.53
3 A' 3362 3019 8.39 57.73 0.21 0.34
4 A' 1903 1709 185.19 98.40 0.34 0.50
5 A' 1843 1655 8.30 146.46 0.22 0.36
6 A' 1525 1370 13.92 33.86 0.42 0.59
7 A' 1379 1239 0.44 8.39 0.39 0.57
8 A' 1267 1137 73.29 44.51 0.53 0.69
9 A' 972 873 18.12 0.82 0.72 0.83
10 A' 651 584 6.13 5.90 0.29 0.45
11 A' 372 334 2.39 0.82 0.74 0.85
12 A" 1106 993 59.37 9.74 0.75 0.86
13 A" 1079 969 21.93 7.68 0.75 0.86
14 A" 737 662 2.05 5.51 0.75 0.86
15 A" 186 167 0.02 1.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11619.7 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 10434.5 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 HF/CEP-31G*
ABC
1.77182 0.16957 0.15476

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.226 1.209 0.000
C2 0.000 0.648 0.000
N3 -0.061 -0.786 0.000
O4 -1.181 -1.211 0.000
H5 2.111 0.588 0.000
H6 1.351 2.283 0.000
H7 -0.941 1.178 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.34872.37473.41361.08081.08102.1677
C21.34871.43492.20202.11162.12121.0807
N32.37471.43491.19772.57043.37842.1527
O43.41362.20201.19773.75154.31492.4013
H51.08082.11162.57043.75151.85743.1087
H61.08102.12123.37844.31491.85742.5444
H72.16771.08072.15272.40133.10872.5444

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.060 C1 C2 H7 125.963
C2 C1 H5 120.318 C2 C1 H6 121.231
C2 N3 O4 113.219 N3 C2 H7 116.977
H5 C1 H6 118.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 C -0.134      
3 N 0.069      
4 O -0.200      
5 H 0.210      
6 H 0.200      
7 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.565 3.040 0.000 3.419
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.412 -0.369 0.000
y -0.369 -23.451 0.000
z 0.000 0.000 -23.983
Traceless
 xyz
x 1.305 -0.369 0.000
y -0.369 -0.253 0.000
z 0.000 0.000 -1.052
Polar
3z2-r2-2.104
x2-y21.039
xy-0.369
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.791 2.516 0.000
y 2.516 5.329 0.000
z 0.000 0.000 2.305


<r2> (average value of r2) Å2
<r2> 62.472
(<r2>)1/2 7.904