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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-195.313941
Energy at 298.15K-195.320992
Nuclear repulsion energy151.728140
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 B3LYP/6-31+G**
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 3133 3020 19.03      
2 A 3118 3006 0.44      
3 A 3080 2970 21.64      
4 A 3029 2920 8.63      
5 A 1516 1462 4.65      
6 A 1488 1435 6.68      
7 A 1450 1398 0.01      
8 A 1411 1360 2.05      
9 A 1167 1125 0.04      
10 A 1093 1054 1.98      
11 A 1058 1020 0.32      
12 A 901 868 25.49      
13 A 826 796 0.05      
14 A 543 524 5.95      
15 A 296 285 1.01      
16 A 175 169 0.03      
17 A 140 135 2.60      
18 A 3133 3021 40.36      
19 A 3116 3004 0.31      
20 A 3080 2970 21.00      
21 A 3028 2919 81.99      
22 A 2060 1986 14.12      
23 A 1497 1443 10.90      
24 A 1488 1434 6.97      
25 A 1408 1357 4.51      
26 A 1315 1268 22.90      
27 A 1099 1060 2.45      
28 A 1055 1017 1.17      
29 A 960 926 14.60      
30 A 712 686 18.18      
31 A 575 554 16.28      
32 A 229 221 1.29      
33 A 159 153 1.85      

Unscaled Zero Point Vibrational Energy (zpe) 24666.1 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 23783.0 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 B3LYP/6-31+G**
ABC
0.58066 0.07360 0.07122

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.408
C2 0.000 1.312 0.411
C3 0.000 -1.312 0.411
C4 -0.873 2.187 -0.458
C5 0.873 -2.187 -0.458
H6 0.681 1.826 1.092
H7 -0.681 -1.826 1.092
H8 -1.508 2.836 0.159
H9 -0.262 2.842 -1.091
H10 -1.519 1.588 -1.104
H11 1.508 -2.836 0.159
H12 0.262 -2.842 -1.091
H13 1.519 -1.588 -1.104

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31201.31202.50922.50922.06602.06603.22173.22332.66733.22173.22332.6673
C21.31202.62391.51153.70991.09183.28282.15892.15992.16374.42094.42493.6074
C31.31202.62393.70991.51153.28281.09184.42094.42493.60742.15892.15992.1637
C42.50921.51153.70994.71072.22474.30701.09701.09691.09315.59345.19464.5160
C52.50923.70991.51154.71074.30702.22475.59345.19464.51601.09701.09691.0931
H62.06601.09183.28282.22474.30703.89852.58512.58543.11824.82645.17064.1454
H72.06603.28281.09184.30702.22473.89854.82645.17064.14542.58512.58543.1182
H83.22172.15894.42091.09705.59342.58514.82641.76471.77586.42416.07725.5072
H93.22332.15994.42491.09695.19462.58545.17061.76471.77636.07725.70814.7743
H102.66732.16373.60741.09314.51603.11824.14541.77581.77635.50724.77434.3950
H113.22174.42092.15895.59341.09704.82642.58516.42416.07725.50721.76471.7758
H123.22334.42492.15995.19461.09695.17062.58546.07725.70814.77431.76471.7763
H132.66733.60742.16374.51601.09314.14543.11825.50724.77434.39501.77581.7763

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 125.274 C1 C2 H6 118.230
C1 C3 C5 125.274 C1 C3 H7 118.230
C2 C1 C3 179.665 C2 C4 H8 110.711
C2 C4 H9 110.793 C2 C4 H10 111.334
C3 C5 H11 110.711 C3 C5 H12 110.793
C3 C5 H13 111.334 C4 C2 H6 116.496
C5 C3 H7 116.496 H8 C4 H9 107.092
H8 C4 H10 108.358 H9 C4 H10 108.409
H11 C5 H12 107.092 H11 C5 H13 108.358
H12 C5 H13 108.409
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.735     -0.173
2 C -0.336     -0.068
3 C -0.336     -0.056
4 C -0.650     -0.061
5 C -0.650     -0.090
6 H 0.147     0.095
7 H 0.147     0.092
8 H 0.157     0.029
9 H 0.157     0.038
10 H 0.157     0.053
11 H 0.157     0.037
12 H 0.157     0.043
13 H 0.157     0.061


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 -0.237 0.237
CHELPG        
AIM        
ESP 0.008 0.009 -0.251 0.252


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.695 -0.254 0.000
y -0.254 -28.452 0.000
z 0.000 0.000 -32.906
Traceless
 xyz
x -2.016 -0.254 0.000
y -0.254 4.348 0.000
z 0.000 0.000 -2.332
Polar
3z2-r2-4.664
x2-y2-4.243
xy-0.254
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.166 -1.062 0.000
y -1.062 14.644 0.000
z 0.000 0.000 7.053


<r2> (average value of r2) Å2
<r2> 173.785
(<r2>)1/2 13.183