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All results from a given calculation for C2H3 (vinyl)

using model chemistry: ROHF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/cc-pVQZ
 hartrees
Energy at 0K-77.417555
Energy at 298.15K-77.419184
HF Energy-77.417555
Nuclear repulsion energy28.718283
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 ROHF/cc-pVQZ
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' 3379 3379 0.68      
2 A' 3334 3334 5.83      
3 A' 3250 3250 5.05      
4 A' 1773 1773 2.81      
5 A' 1509 1509 7.34      
6 A' 1202 1202 7.88      
7 A' 827 827 12.40      
8 A" 1058 1058 70.88      
9 A" 966 966 29.83      

Unscaled Zero Point Vibrational Energy (zpe) 8648.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8648.9 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 ROHF/cc-pVQZ
ABC
7.81870 1.11524 0.97602

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.717 0.000
C2 0.051 -0.582 0.000
H3 -0.704 1.475 0.000
H4 -0.870 -1.140 0.000
H5 0.965 -1.145 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.29821.06972.07282.0744
C21.29822.19051.07731.0743
H31.06972.19052.62073.1066
H42.07281.07732.62071.8354
H52.07441.07433.10661.8354

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.248 C1 C2 H5 121.656
C2 C1 H3 135.150 H4 C2 H5 117.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.166      
2 C -0.212      
3 H 0.139      
4 H 0.120      
5 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.594 -0.254 0.000 0.646
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.320 -1.130 0.001
y -1.130 -11.381 -0.001
z 0.001 -0.001 -15.036
Traceless
 xyz
x 0.888 -1.130 0.001
y -1.130 2.297 -0.001
z 0.001 -0.001 -3.186
Polar
3z2-r2-6.372
x2-y2-0.939
xy-1.130
xz0.001
yz-0.001


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


<r2> (average value of r2) Å2
<r2> 20.178
(<r2>)1/2 4.492