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

using model chemistry: B3LYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-195.293864
Energy at 298.15K-195.300935
Nuclear repulsion energy151.876193
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/6-31G*
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 3140 3015 20.72      
2 A 3122 2998 3.41      
3 A 3086 2963 26.87      
4 A 3037 2916 7.91      
5 A 1539 1478 2.52      
6 A 1514 1454 4.77      
7 A 1470 1411 0.09      
8 A 1432 1376 0.88      
9 A 1178 1131 0.01      
10 A 1106 1062 1.25      
11 A 1070 1027 0.02      
12 A 908 872 19.45      
13 A 832 799 0.00      
14 A 551 529 2.59      
15 A 295 283 1.23      
16 A 180 172 0.00      
17 A 141 136 1.29      
18 A 3140 3015 43.97      
19 A 3121 2997 3.49      
20 A 3086 2963 26.92      
21 A 3036 2915 80.10      
22 A 2081 1998 10.18      
23 A 1523 1462 5.52      
24 A 1513 1453 5.12      
25 A 1429 1372 6.91      
26 A 1333 1280 23.79      
27 A 1110 1066 3.44      
28 A 1067 1024 0.38      
29 A 968 930 12.73      
30 A 713 685 15.66      
31 A 580 557 10.51      
32 A 233 223 0.50      
33 A 162 156 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 24846.2 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 23859.8 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/6-31G*
ABC
0.57575 0.07402 0.07157

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.415
C2 0.000 1.310 0.413
C3 0.000 -1.310 0.413
C4 -0.876 2.177 -0.461
C5 0.876 -2.177 -0.461
H6 0.678 1.833 1.091
H7 -0.678 -1.833 1.091
H8 -1.515 2.828 0.151
H9 -0.267 2.832 -1.098
H10 -1.519 1.571 -1.104
H11 1.515 -2.828 0.151
H12 0.267 -2.832 -1.098
H13 1.519 -1.571 -1.104

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.30981.30982.50482.50482.06832.06833.21943.22162.66113.21943.22162.6611
C21.30982.61961.51123.70011.09243.28592.16102.16142.16314.41464.41683.5927
C31.30982.61963.70011.51123.28591.09244.41464.41683.59272.16102.16142.1631
C42.50481.51123.70014.69392.22304.30481.09791.09791.09365.58095.17734.4942
C52.50483.70011.51124.69394.30482.22305.58095.17734.49421.09791.09791.0936
H62.06831.09243.28592.22304.30483.90902.58542.58523.11724.82865.16954.1369
H72.06833.28591.09244.30482.22303.90904.82865.16954.13692.58542.58523.1172
H83.21942.16104.41461.09795.58092.58544.82861.76501.77686.41706.06405.4891
H93.22162.16144.41681.09795.17732.58525.16951.76501.77706.06405.68884.7510
H102.66112.16313.59271.09364.49423.11724.13691.77681.77705.48914.75104.3700
H113.21944.41462.16105.58091.09794.82862.58546.41706.06405.48911.76501.7768
H123.22164.41682.16145.17731.09795.16952.58526.06405.68884.75101.76501.7770
H132.66113.59272.16314.49421.09364.13693.11725.48914.75104.37001.77681.7770

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 125.075 C1 C2 H6 118.583
C1 C3 C5 125.075 C1 C3 H7 118.583
C2 C1 C3 179.883 C2 C4 H8 110.845
C2 C4 H9 110.883 C2 C4 H10 111.272
C3 C5 H11 110.845 C3 C5 H12 110.883
C3 C5 H13 111.272 C4 C2 H6 116.342
C5 C3 H7 116.342 H8 C4 H9 106.993
H8 C4 H10 108.340 H9 C4 H10 108.358
H11 C5 H12 106.993 H11 C5 H13 108.340
H12 C5 H13 108.358
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306 -0.051   -0.181
2 C -0.306 -0.150   -0.032
3 C -0.306 -0.150   -0.023
4 C -0.464 0.060   -0.157
5 C -0.464 0.060   -0.174
6 H 0.147 0.093   0.090
7 H 0.147 0.093   0.087
8 H 0.156 0.002   0.052
9 H 0.155 0.010   0.060
10 H 0.159 0.009   0.077
11 H 0.156 0.002   0.057
12 H 0.155 0.010   0.063
13 H 0.159 0.009   0.081


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 -0.180 0.180
CHELPG 0.000 0.000 -0.184 0.184
AIM        
ESP 0.002 0.007 -0.211 0.211


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.639 -0.163 0.000
y -0.163 -27.907 0.000
z 0.000 0.000 -31.800
Traceless
 xyz
x -1.786 -0.163 0.000
y -0.163 3.813 0.000
z 0.000 0.000 -2.027
Polar
3z2-r2-4.054
x2-y2-3.733
xy-0.163
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.775 -1.006 0.000
y -1.006 13.299 0.000
z 0.000 0.000 5.671


<r2> (average value of r2) Å2
<r2> 172.565
(<r2>)1/2 13.136