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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: PBE1PBE/3-21G*

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/3-21G*
 hartrees
Energy at 0K-206.474191
Energy at 298.15K 
HF Energy-206.474191
Nuclear repulsion energy103.115182
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/3-21G*
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' 3291 3158 0.36 54.95 0.65 0.79
2 A' 3211 3082 3.73 111.50 0.23 0.37
3 A' 3189 3061 0.17 35.65 0.12 0.22
4 A' 1700 1632 2.97 30.96 0.16 0.28
5 A' 1461 1402 15.71 17.20 0.41 0.58
6 A' 1373 1318 42.25 34.44 0.29 0.45
7 A' 1297 1245 1.04 7.48 0.53 0.69
8 A' 1130 1084 37.23 23.95 0.51 0.68
9 A' 867 832 44.80 1.68 0.61 0.76
10 A' 606 582 2.12 6.72 0.30 0.46
11 A' 333 319 0.97 0.35 0.67 0.80
12 A" 1041 999 12.11 2.98 0.75 0.86
13 A" 1034 992 72.46 0.01 0.75 0.86
14 A" 687 660 1.98 9.93 0.75 0.86
15 A" 191 184 0.24 1.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10704.9 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 10274.5 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 PBE1PBE/3-21G*
ABC
1.70904 0.16626 0.15152

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.180 1.264 0.000
C2 0.000 0.647 0.000
N3 0.001 -0.800 0.000
O4 -1.184 -1.253 0.000
H5 2.091 0.674 0.000
H6 1.266 2.344 0.000
H7 -0.969 1.137 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33142.37643.45301.08591.08372.1524
C21.33141.44642.23862.09132.11731.0861
N32.37641.44641.26912.55703.38862.1664
O43.45302.23861.26913.79994.35222.4000
H51.08592.09132.55703.79991.86353.0950
H61.08372.11733.38864.35221.86352.5396
H72.15241.08612.16642.40003.09502.5396

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.570 C1 C2 H7 125.531
C2 C1 H5 119.449 C2 C1 H6 122.159
C2 N3 O4 110.880 N3 C2 H7 116.899
H5 C1 H6 118.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.398      
2 C -0.054      
3 N -0.041      
4 O -0.270      
5 H 0.260      
6 H 0.247      
7 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.285 2.951 0.000 3.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.157 -0.065 0.000
y -0.065 -23.040 0.000
z 0.000 0.000 -23.586
Traceless
 xyz
x 1.156 -0.065 0.000
y -0.065 -0.169 0.000
z 0.000 0.000 -0.987
Polar
3z2-r2-1.974
x2-y20.883
xy-0.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.856 2.160 0.000
y 2.160 5.396 0.000
z 0.000 0.000 1.446


<r2> (average value of r2) Å2
<r2> 77.176
(<r2>)1/2 8.785