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All results from a given calculation for C5H8 (1,2-Pentadiene)

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-195.018513
Energy at 298.15K-195.025671
Nuclear repulsion energy155.270355
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3132 3114 2.65      
2 A 3061 3044 25.04      
3 A 3056 3038 22.87      
4 A 3052 3034 6.75      
5 A 3049 3031 6.63      
6 A 2976 2959 19.31      
7 A 2969 2952 16.91      
8 A 2942 2925 36.18      
9 A 2019 2008 28.13      
10 A 1429 1420 7.00      
11 A 1419 1410 0.77      
12 A 1414 1406 6.94      
13 A 1396 1388 4.56      
14 A 1350 1343 3.47      
15 A 1309 1301 14.20      
16 A 1292 1284 1.23      
17 A 1232 1225 0.01      
18 A 1122 1116 2.70      
19 A 1054 1048 1.83      
20 A 1049 1043 2.05      
21 A 974 968 0.73      
22 A 969 963 0.02      
23 A 858 853 12.63      
24 A 845 840 7.16      
25 A 812 807 44.70      
26 A 761 757 3.74      
27 A 617 614 1.87      
28 A 502 499 4.68      
29 A 347 345 2.90      
30 A 325 323 5.13      
31 A 246 245 0.09      
32 A 145 144 0.28      
33 A 104 103 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 23913.1 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 23774.4 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/cc-pVDZ
ABC
0.33756 0.10461 0.08380

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.385 0.502 0.000
C2 1.520 -1.020 -0.000
C3 -0.039 1.018 0.000
C4 -1.130 0.273 -0.001
C5 -2.222 -0.466 0.000
H6 1.910 0.934 -0.883
H7 1.910 0.934 0.883
H8 1.036 -1.465 0.892
H9 2.586 -1.323 -0.000
H10 1.036 -1.465 -0.893
H11 -0.166 2.117 0.001
H12 -2.699 -0.786 0.942
H13 -2.700 -0.787 -0.940

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52771.51472.52523.73481.11421.11422.18832.18502.18832.23874.38484.3861
C21.52772.56542.94813.78292.17892.17891.10901.10821.10903.56064.32924.3301
C31.51472.56541.32062.63922.14122.14112.84883.51722.84881.10623.34893.3502
C42.52522.94811.32061.31863.23303.23342.91664.04382.91612.08052.11482.1150
C53.73483.78292.63921.31864.45084.45063.52244.88383.52263.30091.10281.1028
H61.11422.17892.14123.23304.45081.76633.11002.51632.55312.54695.24674.9212
H71.11422.17892.14113.23344.45061.76632.55312.51643.11002.54674.91945.2476
H82.18831.10902.84882.91663.52243.11002.55311.79451.78543.88173.79624.2160
H92.18501.10823.51724.04384.88382.51632.51641.79451.79454.40515.39505.3959
H102.18831.10902.84882.91613.52262.55313.11001.78541.79453.88194.21593.7973
H112.23873.56061.10622.08053.30092.54692.54673.88174.40513.88193.96593.9675
H124.38484.32923.34892.11481.10285.24674.91943.79625.39504.21593.96591.8814
H134.38614.33013.35022.11501.10284.92125.24764.21605.39593.79733.96751.8814

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.193 C1 C2 H9 110.975
C1 C2 H10 111.192 C1 C3 C4 125.767
C1 C3 H11 116.474 C2 C1 C3 114.965
C2 C1 H6 110.143 C2 C1 H7 110.144
C3 C1 H6 108.107 C3 C1 H7 108.102
C3 C4 C5 179.710 C4 C3 H11 117.758
C4 C5 H12 121.451 C4 C5 H13 121.467
H6 C1 H7 104.868 H8 C2 H9 108.059
H8 C2 H10 107.202 H9 C2 H10 108.059
H12 C5 H13 117.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 C -0.055      
3 C -0.207      
4 C 0.094      
5 C -0.112      
6 H 0.041      
7 H 0.041      
8 H 0.041      
9 H 0.028      
10 H 0.041      
11 H 0.025      
12 H 0.056      
13 H 0.055      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.475 0.055 0.001 0.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.218 1.728 -0.001
y 1.728 -31.418 0.001
z -0.001 0.001 -31.920
Traceless
 xyz
x 1.451 1.728 -0.001
y 1.728 -0.349 0.001
z -0.001 0.001 -1.102
Polar
3z2-r2-2.204
x2-y21.200
xy1.728
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.884 2.334 0.000
y 2.334 8.032 0.000
z 0.000 0.000 5.963


<r2> (average value of r2) Å2
<r2> 147.013
(<r2>)1/2 12.125