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All results from a given calculation for C5H8 (1,2-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-194.006092
Energy at 298.15K-194.013798
Nuclear repulsion energy157.345719
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 3349 3049 3.07      
2 A 3276 2982 7.49      
3 A 3273 2980 7.47      
4 A 3227 2938 46.25      
5 A 3221 2932 52.42      
6 A 3165 2882 18.91      
7 A 3164 2881 24.11      
8 A 3148 2866 48.40      
9 A 2183 1987 68.28      
10 A 1619 1474 3.98      
11 A 1611 1467 7.00      
12 A 1611 1467 2.62      
13 A 1600 1457 3.07      
14 A 1543 1405 3.58      
15 A 1495 1361 23.85      
16 A 1461 1330 0.70      
17 A 1399 1273 0.40      
18 A 1227 1117 1.28      
19 A 1207 1099 3.93      
20 A 1175 1070 4.01      
21 A 1117 1017 2.41      
22 A 1061 966 0.14      
23 A 1000 911 58.51      
24 A 994 905 16.84      
25 A 893 813 1.77      
26 A 850 774 2.18      
27 A 686 624 7.64      
28 A 579 527 2.58      
29 A 393 358 3.97      
30 A 371 338 9.69      
31 A 274 250 0.00      
32 A 165 151 0.50      
33 A 113 103 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 26225.4 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 23875.6 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
0.34864 0.10610 0.08527

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.362 0.515 -0.000
C2 1.539 -0.996 -0.000
C3 -0.070 0.997 0.000
C4 -1.128 0.255 -0.000
C5 -2.196 -0.476 0.000
H6 1.859 0.942 -0.866
H7 1.859 0.942 0.866
H8 1.086 -1.445 0.875
H9 2.593 -1.249 -0.000
H10 1.086 -1.445 -0.875
H11 -0.215 2.064 0.000
H12 -2.654 -0.789 0.921
H13 -2.655 -0.789 -0.919

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52191.51012.50333.69291.08621.08622.16462.15162.16462.21054.32104.3217
C21.52192.56162.94643.77132.14712.14711.08311.08351.08313.52794.29804.2986
C31.51012.56161.29272.58652.11472.11472.83983.48342.83991.07743.27313.2738
C42.50332.94641.29271.29383.18503.18512.92554.01362.92532.02672.06502.0651
C53.69293.77132.58651.29384.38204.38183.53184.85073.53203.22111.07431.0743
H61.08622.14712.11473.18504.38201.73253.05452.46812.50952.51225.15284.8345
H71.08622.14712.11473.18514.38181.73252.50952.46813.05452.51214.83345.1533
H82.16461.08312.83982.92553.53183.05452.50951.75381.75013.84393.79704.2000
H92.15161.08353.48344.01364.85072.46812.46811.75381.75384.34345.34675.3473
H102.16461.08312.83992.92533.53202.50953.05451.75011.75383.84404.19993.7978
H112.21053.52791.07742.02673.22112.51222.51213.84394.34343.84403.86443.8652
H124.32104.29803.27312.06501.07435.15284.83343.79705.34674.19993.86441.8394
H134.32174.29863.27382.06511.07434.83455.15334.20005.34733.79783.86521.8394

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 111.272 C1 C2 H9 110.207
C1 C2 H10 111.272 C1 C3 C4 126.373
C1 C3 H11 116.368 C2 C1 C3 115.308
C2 C1 H6 109.689 C2 C1 H7 109.689
C3 C1 H6 107.966 C3 C1 H7 107.962
C3 C4 C5 179.363 C4 C3 H11 117.259
C4 C5 H12 121.111 C4 C5 H13 121.120
H6 C1 H7 105.785 H8 C2 H9 108.087
H8 C2 H10 107.787 H9 C2 H10 108.087
H12 C5 H13 117.769
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 -0.324      
2 C -0.994      
3 C -0.756      
4 C 1.058      
5 C -1.314      
6 H 0.263      
7 H 0.263      
8 H 0.304      
9 H 0.228      
10 H 0.304      
11 H 0.292      
12 H 0.338      
13 H 0.338      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.518 0.064 0.001 0.522
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.832 2.087 -0.001
y 2.087 -31.995 0.000
z -0.001 0.000 -32.440
Traceless
 xyz
x 1.386 2.087 -0.001
y 2.087 -0.359 0.000
z -0.001 0.000 -1.027
Polar
3z2-r2-2.054
x2-y21.163
xy2.087
xz-0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.204 1.976 -0.001
y 1.976 8.911 -0.000
z -0.001 -0.000 6.936


<r2> (average value of r2) Å2
<r2> 144.902
(<r2>)1/2 12.038