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All results from a given calculation for C2H3 (vinyl)

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-77.835509
Energy at 298.15K-77.837021
HF Energy-77.425391
Nuclear repulsion energy28.468493
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 QCISD(T)=FULL/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' 3269 3269        
2 A' 3183 3183        
3 A' 3080 3080        
4 A' 1649 1649        
5 A' 1408 1408        
6 A' 1070 1070        
7 A' 731 731        
8 A" 928 928        
9 A" 820 820        

Unscaled Zero Point Vibrational Energy (zpe) 8068.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8068.9 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 QCISD(T)=FULL/aug-cc-pVQZ
ABC
7.87271 1.08994 0.95739

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.721 0.000
C2 0.050 -0.587 0.000
H3 -0.679 1.514 0.000
H4 -0.881 -1.153 0.000
H5 0.965 -1.166 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5
C11.30851.07622.09242.0980
C21.30852.22351.08881.0832
H31.07622.22352.67433.1440
H42.09241.08882.67431.8455
H52.09801.08323.14401.8455

picture of vinyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.311 C1 C2 H5 122.330
C2 C1 H3 137.415 H4 C2 H5 116.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability