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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-194.009511
Energy at 298.15K-194.016920
Nuclear repulsion energy153.328869
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/aug-cc-pVTZ
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 3275 2982 11.89      
2 A 3241 2951 6.98      
3 A 3200 2913 30.12      
4 A 3156 2874 9.47      
5 A 1630 1484 4.61      
6 A 1601 1457 4.97      
7 A 1567 1427 0.09      
8 A 1532 1394 1.05      
9 A 1239 1128 0.17      
10 A 1185 1079 3.16      
11 A 1163 1059 2.27      
12 A 995 905 23.95      
13 A 878 799 0.10      
14 A 590 537 7.78      
15 A 323 295 0.93      
16 A 185 168 0.13      
17 A 152 138 2.09      
18 A 3275 2981 27.54      
19 A 3241 2950 20.33      
20 A 3200 2913 30.32      
21 A 3155 2872 97.17      
22 A 2198 2001 33.44      
23 A 1610 1465 8.13      
24 A 1600 1457 5.34      
25 A 1531 1394 9.38      
26 A 1420 1293 31.45      
27 A 1188 1081 3.35      
28 A 1162 1058 3.10      
29 A 1017 926 9.92      
30 A 791 721 16.11      
31 A 623 567 17.29      
32 A 252 229 1.39      
33 A 166 151 1.35      

Unscaled Zero Point Vibrational Energy (zpe) 26170.1 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 23825.2 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 HF/aug-cc-pVTZ
ABC
0.58400 0.07545 0.07293

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.410
C2 0.000 1.294 0.411
C3 0.000 -1.294 0.411
C4 -0.875 2.157 -0.459
C5 0.875 -2.157 -0.459
H6 0.672 1.799 1.085
H7 -0.672 -1.799 1.085
H8 -1.505 2.796 0.150
H9 -0.270 2.802 -1.087
H10 -1.508 1.556 -1.095
H11 1.505 -2.796 0.150
H12 0.270 -2.802 -1.087
H13 1.508 -1.556 -1.095

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.29391.29392.48472.48472.03572.03573.18603.18852.63813.18603.18852.6381
C21.29392.58781.50583.66521.07743.23602.14252.14312.14764.36594.37003.5586
C31.29392.58783.66521.50583.23601.07744.36594.37003.55862.14252.14312.1476
C42.48471.50583.66524.65592.21444.25201.08461.08461.08095.52905.12874.4576
C52.48473.66521.50584.65594.25202.21445.52905.12874.45761.08461.08461.0809
H62.03571.07743.23602.21444.25203.84072.57052.57133.09284.76285.10434.0875
H72.03573.23601.07744.25202.21443.84074.76285.10434.08752.57052.57133.0928
H83.18602.14254.36591.08465.52902.57054.76281.74841.75736.35086.00195.4378
H93.18852.14314.37001.08465.12872.57135.10431.74841.75756.00195.63084.7069
H102.63812.14763.55861.08094.45763.09284.08751.75731.75755.43784.70694.3339
H113.18604.36592.14255.52901.08464.76282.57056.35086.00195.43781.74841.7573
H123.18854.37002.14315.12871.08465.10432.57136.00195.63084.70691.74841.7575
H132.63813.55862.14764.45761.08094.08753.09285.43784.70694.33391.75731.7575

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.950 C1 C2 H6 118.004
C1 C3 C5 124.950 C1 C3 H7 118.004
C2 C1 C3 179.879 C2 C4 H8 110.549
C2 C4 H9 110.596 C2 C4 H10 111.181
C3 C5 H11 110.549 C3 C5 H12 110.596
C3 C5 H13 111.181 C4 C2 H6 117.046
C5 C3 H7 117.046 H8 C4 H9 107.414
H8 C4 H10 108.480 H9 C4 H10 108.504
H11 C5 H12 107.414 H11 C5 H13 108.480
H12 C5 H13 108.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.738      
2 C -0.610      
3 C -0.610      
4 C -0.829      
5 C -0.829      
6 H 0.280      
7 H 0.280      
8 H 0.263      
9 H 0.270      
10 H 0.256      
11 H 0.263      
12 H 0.270      
13 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.221 0.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.646 -0.110 0.000
y -0.110 -28.287 0.000
z 0.000 0.000 -32.833
Traceless
 xyz
x -2.086 -0.110 0.000
y -0.110 4.453 0.000
z 0.000 0.000 -2.366
Polar
3z2-r2-4.733
x2-y2-4.359
xy-0.110
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.417 -1.058 0.000
y -1.058 14.266 0.000
z 0.000 0.000 7.311


<r2> (average value of r2) Å2
<r2> 170.153
(<r2>)1/2 13.044