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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-206.654485
Energy at 298.15K 
HF Energy-206.654485
Nuclear repulsion energy103.149938
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 mPW1PW91/3-21G*
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' 3296 3130 0.45 55.20 0.66 0.79
2 A' 3218 3055 3.87 111.40 0.23 0.37
3 A' 3196 3035 0.23 36.31 0.12 0.22
4 A' 1702 1616 2.94 30.92 0.16 0.28
5 A' 1466 1392 15.73 17.95 0.40 0.57
6 A' 1371 1302 41.69 33.60 0.29 0.44
7 A' 1302 1236 1.29 7.93 0.51 0.68
8 A' 1132 1075 37.31 24.24 0.51 0.68
9 A' 868 824 45.54 1.87 0.60 0.75
10 A' 606 576 2.08 6.72 0.30 0.46
11 A' 334 317 0.97 0.35 0.67 0.80
12 A" 1044 991 15.35 3.07 0.75 0.86
13 A" 1036 984 69.36 0.05 0.75 0.86
14 A" 688 654 1.94 9.89 0.75 0.86
15 A" 192 182 0.23 1.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10725.0 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 10184.5 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 mPW1PW91/3-21G*
ABC
1.71272 0.16628 0.15157

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.179 1.265 0.000
C2 0.000 0.647 0.000
N3 0.001 -0.799 0.000
O4 -1.183 -1.254 0.000
H5 2.090 0.677 0.000
H6 1.262 2.344 0.000
H7 -0.968 1.137 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33072.37593.45271.08451.08242.1499
C21.33071.44592.23892.09042.11511.0846
N32.37591.44591.26892.55793.38652.1650
O43.45272.23891.26893.80064.35032.4005
H51.08452.09042.55793.80061.86083.0921
H61.08242.11513.38654.35031.86082.5356
H72.14991.08462.16502.40053.09212.5356

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.614 C1 C2 H7 125.462
C2 C1 H5 119.537 C2 C1 H6 122.115
C2 N3 O4 110.943 N3 C2 H7 116.923
H5 C1 H6 118.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C -0.053      
3 N -0.041      
4 O -0.272      
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
  1.295 2.972 0.000 3.242
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.114 -0.073 0.000
y -0.073 -23.003 0.000
z 0.000 0.000 -23.536
Traceless
 xyz
x 1.156 -0.073 0.000
y -0.073 -0.178 0.000
z 0.000 0.000 -0.977
Polar
3z2-r2-1.955
x2-y20.889
xy-0.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.846 2.168 0.000
y 2.168 5.390 0.000
z 0.000 0.000 1.443


<r2> (average value of r2) Å2
<r2> 77.126
(<r2>)1/2 8.782