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All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-37.888335
Energy at 298.15K 
HF Energy-37.888335
Nuclear repulsion energy55.910551
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-121G
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' 3421 3122 5.86 61.20 0.67 0.81
2 A' 3354 3060 7.45 97.98 0.27 0.43
3 A' 3303 3014 1.25 57.53 0.15 0.25
4 A' 1792 1636 6.21 137.73 0.19 0.32
5 A' 1745 1593 177.65 127.63 0.35 0.52
6 A' 1542 1407 15.03 35.99 0.37 0.54
7 A' 1400 1277 8.11 25.02 0.36 0.53
8 A' 1271 1160 52.64 41.58 0.53 0.69
9 A' 987 900 20.31 1.49 0.75 0.86
10 A' 645 588 8.08 9.17 0.28 0.44
11 A' 374 341 2.09 0.35 0.73 0.84
12 A" 1157 1056 44.11 9.73 0.75 0.86
13 A" 1088 993 51.94 4.62 0.75 0.86
14 A" 752 686 3.55 9.35 0.75 0.86
15 A" 189 173 0.00 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11510.5 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 10503.3 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 HF/CEP-121G
ABC
1.79889 0.16628 0.15221

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.202 1.243 0.000
C2 0.000 0.657 0.000
N3 -0.041 -0.780 0.000
O4 -1.172 -1.259 0.000
H5 2.098 0.649 0.000
H6 1.302 2.313 0.000
H7 -0.946 1.168 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33702.37483.44871.07551.07442.1490
C21.33701.43782.24582.09832.10651.0754
N32.37481.43781.22752.57333.37232.1483
O43.44872.24581.22753.78604.34482.4377
H51.07552.09832.57333.78601.84443.0883
H61.07442.10653.37234.34481.84442.5226
H72.14901.07542.14832.43773.08832.5226

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.655 C1 C2 H7 125.603
C2 C1 H5 120.475 C2 C1 H6 121.366
C2 N3 O4 114.602 N3 C2 H7 116.742
H5 C1 H6 118.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.262      
2 C -0.129      
3 N 0.131      
4 O -0.273      
5 H 0.172      
6 H 0.171      
7 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.789 3.518 0.000 3.946
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.241 -0.530 0.000
y -0.530 -24.306 0.000
z 0.000 0.000 -24.261
Traceless
 xyz
x 1.042 -0.530 0.000
y -0.530 -0.555 0.000
z 0.000 0.000 -0.487
Polar
3z2-r2-0.975
x2-y21.065
xy-0.530
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.118 2.640 0.000
y 2.640 5.691 0.000
z 0.000 0.000 2.450


<r2> (average value of r2) Å2
<r2> 63.563
(<r2>)1/2 7.973