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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-207.811172
Energy at 298.15K 
HF Energy-207.811172
Nuclear repulsion energy104.795124
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 B3PW91/6-31G(2df,p)
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' 3271 3144 0.54 56.71 0.69 0.81
2 A' 3178 3055 4.21 149.87 0.15 0.26
3 A' 3160 3038 3.94 16.50 0.69 0.82
4 A' 1694 1629 5.05 13.09 0.11 0.20
5 A' 1624 1562 114.26 66.56 0.28 0.43
6 A' 1407 1353 21.72 18.56 0.40 0.57
7 A' 1275 1226 1.74 6.73 0.51 0.67
8 A' 1147 1103 67.97 20.82 0.50 0.66
9 A' 890 856 27.84 0.15 0.11 0.20
10 A' 614 590 1.43 7.15 0.23 0.37
11 A' 338 325 1.22 0.76 0.64 0.78
12 A" 1015 976 23.15 0.25 0.75 0.86
13 A" 1005 966 22.13 1.19 0.75 0.86
14 A" 684 657 0.33 5.29 0.75 0.86
15 A" 181 174 0.08 1.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10740.7 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 10326.1 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 B3PW91/6-31G(2df,p)
ABC
1.77992 0.17033 0.15546

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.204 1.217 0.000
C2 0.000 0.647 0.000
N3 -0.045 -0.779 0.000
O4 -1.173 -1.224 0.000
H5 2.091 0.590 0.000
H6 1.335 2.293 0.000
H7 -0.953 1.173 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33272.35473.40721.08591.08422.1582
C21.33271.42592.20752.09172.12021.0890
N32.35471.42591.21242.53713.36802.1524
O43.40722.20751.21243.73414.31982.4063
H51.08592.09172.53713.73411.86323.0996
H61.08422.12023.36804.31981.86322.5484
H72.15821.08902.15242.40633.09962.5484

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.168 C1 C2 H7 125.755
C2 C1 H5 119.386 C2 C1 H6 122.294
C2 N3 O4 113.346 N3 C2 H7 117.077
H5 C1 H6 118.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.334      
2 C 0.067      
3 N 0.030      
4 O -0.254      
5 H 0.175      
6 H 0.173      
7 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.301 2.776 0.000 3.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.927 -0.038 0.000
y -0.038 -22.683 0.000
z 0.000 0.000 -23.025
Traceless
 xyz
x 0.927 -0.038 0.000
y -0.038 -0.207 0.000
z 0.000 0.000 -0.720
Polar
3z2-r2-1.441
x2-y20.756
xy-0.038
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.383 2.036 0.000
y 2.036 6.112 0.000
z 0.000 0.000 2.498


<r2> (average value of r2) Å2
<r2> 75.471
(<r2>)1/2 8.687