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All results from a given calculation for C2H3 (vinyl)

using model chemistry: CCSD(T)/aug-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 CCSD(T)/aug-cc-pVQZ
 hartrees
Energy at 0K-77.775697
Energy at 298.15K-77.777192
HF Energy-77.425372
Nuclear repulsion energy28.412960
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 CCSD(T)/aug-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' 3246 3120        
2 A' 3168 3046        
3 A' 3067 2949        
4 A' 1641 1578        
5 A' 1395 1341        
6 A' 1063 1022        
7 A' 718 691        
8 A" 916 880        
9 A" 799 768        

Unscaled Zero Point Vibrational Energy (zpe) 8006.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 7697.2 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 CCSD(T)/aug-cc-pVQZ
ABC
7.80238 1.08696 0.95405

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.723 0.000
C2 0.050 -0.588 0.000
H3 -0.687 1.511 0.000
H4 -0.882 -1.155 0.000
H5 0.968 -1.167 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.31121.07882.09672.1010
C21.31122.22461.09081.0852
H31.07882.22462.67313.1479
H42.09671.09082.67311.8500
H52.10101.08523.14791.8500

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.322 C1 C2 H5 122.219
C2 C1 H3 136.903 H4 C2 H5 116.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability