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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-206.632402
Energy at 298.15K 
HF Energy-206.632402
Nuclear repulsion energy102.881544
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 B3PW91/3-21G*
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' 3277 3144 0.68      
2 A' 3197 3067 4.37      
3 A' 3177 3048 0.48      
4 A' 1686 1617 2.92      
5 A' 1457 1398 15.66      
6 A' 1346 1292 38.00      
7 A' 1293 1241 1.62      
8 A' 1121 1075 37.39      
9 A' 857 822 47.22      
10 A' 600 575 1.70      
11 A' 331 318 0.95      
12 A" 1033 991 5.60      
13 A" 1028 986 77.09      
14 A" 680 653 1.81      
15 A" 191 183 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 10636.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10204.3 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 B3PW91/3-21G*
ABC
1.70393 0.16547 0.15082

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.180 1.269 0.000
C2 0.000 0.648 0.000
N3 0.004 -0.801 0.000
O4 -1.186 -1.258 0.000
H5 2.094 0.683 0.000
H6 1.262 2.350 0.000
H7 -0.970 1.138 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33322.38073.46151.08601.08412.1532
C21.33321.44882.24462.09422.11901.0864
N32.38071.44881.27462.56333.39302.1695
O43.46152.24461.27463.81124.36012.4055
H51.08602.09422.56333.81121.86323.0970
H61.08412.11903.39304.36011.86322.5394
H72.15321.08642.16952.40553.09702.5394

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.629 C1 C2 H7 125.405
C2 C1 H5 119.559 C2 C1 H6 122.131
C2 N3 O4 110.852 N3 C2 H7 116.966
H5 C1 H6 118.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 C -0.049      
3 N -0.044      
4 O -0.267      
5 H 0.257      
6 H 0.243      
7 H 0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.287 2.968 0.000 3.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.105 -0.059 0.000
y -0.059 -22.988 0.000
z 0.000 0.000 -23.512
Traceless
 xyz
x 1.145 -0.059 0.000
y -0.059 -0.179 0.000
z 0.000 0.000 -0.965
Polar
3z2-r2-1.930
x2-y20.883
xy-0.059
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.864 2.175 0.000
y 2.175 5.463 0.000
z 0.000 0.000 1.449


<r2> (average value of r2) Å2
<r2> 77.419
(<r2>)1/2 8.799