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

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-192.914724
Energy at 298.15K-192.921453
Nuclear repulsion energy150.554699
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/STO-3G
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 3485 3110 0.33      
2 A 3446 3075 0.99      
3 A 3391 3026 0.19      
4 A 3297 2942 0.45      
5 A 1683 1502 1.16      
6 A 1669 1490 4.17      
7 A 1572 1403 0.03      
8 A 1562 1394 0.21      
9 A 1241 1107 0.01      
10 A 1171 1045 0.99      
11 A 1143 1020 0.82      
12 A 962 859 12.63      
13 A 882 787 0.17      
14 A 557 497 0.28      
15 A 303 270 0.85      
16 A 157 141 0.10      
17 A 137 123 0.64      
18 A 3485 3110 0.47      
19 A 3446 3075 1.02      
20 A 3392 3027 16.96      
21 A 3297 2942 2.99      
22 A 2212 1974 0.83      
23 A 1677 1497 5.02      
24 A 1669 1489 4.31      
25 A 1556 1389 14.50      
26 A 1412 1260 22.38      
27 A 1174 1047 5.76      
28 A 1140 1017 0.37      
29 A 1030 919 6.57      
30 A 737 658 13.04      
31 A 593 529 3.97      
32 A 221 198 0.40      
33 A 145 129 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 26921.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 24024.9 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 B3LYP/STO-3G
ABC
0.55383 0.07314 0.07062

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.428
C2 0.000 1.316 0.424
C3 0.000 -1.316 0.424
C4 -0.898 2.185 -0.473
C5 0.898 -2.185 -0.473
H6 0.675 1.868 1.100
H7 -0.675 -1.868 1.100
H8 -1.543 2.836 0.142
H9 -0.283 2.836 -1.118
H10 -1.538 1.560 -1.114
H11 1.543 -2.836 0.142
H12 0.283 -2.836 -1.118
H13 1.538 -1.560 -1.114

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31571.31572.52832.52832.09692.09693.24103.24272.67893.24103.24272.6789
C21.31572.63141.53883.72371.10313.32392.18442.18442.18894.43794.43843.6058
C31.31572.63143.72371.53883.32391.10314.43794.43843.60582.18442.18442.1889
C42.52831.53883.72374.72452.24704.35321.10371.10371.09995.61655.19864.5135
C52.52833.72371.53884.72454.35322.24705.61655.19864.51351.10371.10371.0999
H62.09691.10313.32392.24704.35323.97272.60252.60263.14504.87835.21584.1710
H72.09693.32391.10314.35322.24703.97274.87835.21584.17102.60252.60263.1450
H83.24102.18444.43791.10375.61652.60254.87831.78171.78986.45686.09085.5133
H93.24272.18444.43841.10375.19862.60265.21581.78171.78996.09085.70114.7591
H102.67892.18893.60581.09994.51353.14504.17101.78981.78995.51334.75914.3821
H113.24104.43792.18445.61651.10374.87832.60256.45686.09085.51331.78171.7898
H123.24274.43842.18445.19861.10375.21582.60266.09085.70114.75911.78171.7899
H132.67893.60582.18894.51351.09994.17103.14505.51334.75914.38211.78981.7899

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 124.500 C1 C2 H6 119.946
C1 C3 C5 124.500 C1 C3 H7 119.946
C2 C1 C3 179.690 C2 C4 H8 110.426
C2 C4 H9 110.426 C2 C4 H10 111.006
C3 C5 H11 110.426 C3 C5 H12 110.426
C3 C5 H13 111.006 C4 C2 H6 115.553
C5 C3 H7 115.553 H8 C4 H9 107.635
H8 C4 H10 108.624 H9 C4 H10 108.630
H11 C5 H12 107.635 H11 C5 H13 108.624
H12 C5 H13 108.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.016      
2 C -0.102      
3 C -0.102      
4 C -0.218      
5 C -0.218      
6 H 0.082      
7 H 0.082      
8 H 0.081      
9 H 0.081      
10 H 0.083      
11 H 0.081      
12 H 0.081      
13 H 0.083      


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 -0.204 0.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.456 -0.269 0.000
y -0.269 -26.452 0.000
z 0.000 0.000 -29.634
Traceless
 xyz
x -1.413 -0.269 0.000
y -0.269 3.093 0.000
z 0.000 0.000 -1.680
Polar
3z2-r2-3.359
x2-y2-3.004
xy-0.269
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.877 -0.656 0.000
y -0.656 8.750 0.000
z 0.000 0.000 2.818


<r2> (average value of r2) Å2
<r2> 173.520
(<r2>)1/2 13.173