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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-195.023930
Energy at 298.15K-195.030854
Nuclear repulsion energy151.260296
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 PBEPBE/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 3086 3044 12.42      
2 A 3054 3012 7.47      
3 A 3031 2989 20.42      
4 A 2972 2931 7.55      
5 A 1479 1459 2.58      
6 A 1447 1428 5.26      
7 A 1411 1392 0.22      
8 A 1362 1344 1.30      
9 A 1142 1127 0.13      
10 A 1060 1046 1.10      
11 A 1018 1004 0.08      
12 A 870 858 20.43      
13 A 811 800 0.02      
14 A 531 523 2.32      
15 A 284 280 1.39      
16 A 177 175 0.01      
17 A 135 133 1.55      
18 A 3086 3044 28.12      
19 A 3053 3011 8.17      
20 A 3031 2989 20.44      
21 A 2971 2930 71.65      
22 A 2028 2001 8.83      
23 A 1455 1435 6.34      
24 A 1447 1427 5.67      
25 A 1359 1341 4.66      
26 A 1273 1256 22.77      
27 A 1073 1059 2.08      
28 A 1014 1000 0.11      
29 A 945 932 17.85      
30 A 681 671 17.23      
31 A 559 552 10.94      
32 A 223 220 0.54      
33 A 158 156 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 24113.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 23782.9 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 PBEPBE/6-31G**
ABC
0.57445 0.07336 0.07097

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.413
C2 0.000 1.318 0.412
C3 0.000 -1.318 0.412
C4 -0.875 2.187 -0.460
C5 0.875 -2.187 -0.460
H6 0.684 1.841 1.097
H7 -0.684 -1.841 1.097
H8 -1.517 2.844 0.155
H9 -0.263 2.848 -1.100
H10 -1.523 1.580 -1.109
H11 1.517 -2.844 0.155
H12 0.263 -2.848 -1.100
H13 1.523 -1.580 -1.109

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31791.31792.51242.51242.07942.07943.23313.23562.67063.23313.23562.6706
C21.31792.63581.51063.71661.10003.30372.16662.16712.16834.43674.43963.6098
C31.31792.63583.71661.51063.30371.10004.43674.43963.60982.16662.16712.1683
C42.51241.51063.71664.71172.23034.32261.10461.10451.09985.60435.20194.5127
C52.51243.71661.51064.71174.32262.23035.60435.20194.51271.10461.10451.0998
H62.07941.10003.30372.23034.32263.92772.59542.59553.13114.85025.19494.1557
H72.07943.30371.10004.32262.23033.92774.85025.19494.15572.59542.59553.1311
H83.23312.16664.43671.10465.60432.59544.85021.77321.78706.44556.09405.5139
H93.23562.16714.43961.10455.20192.59555.19491.77321.78726.09405.72044.7748
H102.67062.16833.60981.09984.51273.13114.15571.78701.78725.51394.77484.3889
H113.23314.43672.16665.60431.10464.85022.59546.44556.09405.51391.77321.7870
H123.23564.43962.16715.20191.10455.19492.59556.09405.72044.77481.77321.7872
H132.67063.60982.16834.51271.09984.15573.13115.51394.77484.38891.78701.7872

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 125.164 C1 C2 H6 118.354
C1 C3 C5 125.164 C1 C3 H7 118.354
C2 C1 C3 179.922 C2 C4 H8 110.926
C2 C4 H9 110.972 C2 C4 H10 111.349
C3 C5 H11 110.926 C3 C5 H12 110.972
C3 C5 H13 111.349 C4 C2 H6 116.482
C5 C3 H7 116.482 H8 C4 H9 106.771
H8 C4 H10 108.316 H9 C4 H10 108.340
H11 C5 H12 106.771 H11 C5 H13 108.316
H12 C5 H13 108.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.298      
2 C -0.284      
3 C -0.284      
4 C -0.384      
5 C -0.384      
6 H 0.120      
7 H 0.120      
8 H 0.134      
9 H 0.133      
10 H 0.132      
11 H 0.134      
12 H 0.133      
13 H 0.132      


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 -0.220 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.513 -0.308 0.000
y -0.308 -27.476 0.000
z 0.000 0.000 -31.707
Traceless
 xyz
x -1.921 -0.308 0.000
y -0.308 4.134 0.000
z 0.000 0.000 -2.213
Polar
3z2-r2-4.426
x2-y2-4.037
xy-0.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.033 -1.119 0.000
y -1.119 13.762 0.000
z 0.000 0.000 5.916


<r2> (average value of r2) Å2
<r2> 173.735
(<r2>)1/2 13.181