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All results from a given calculation for C5H10 (2-Pentene, (E)-)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-195.472923
Energy at 298.15K-195.483076
Nuclear repulsion energy170.144865
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/3-21G
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' 3165 3054 26.05      
2 A' 3127 3017 20.56      
3 A' 3117 3008 31.57      
4 A' 3110 3001 12.67      
5 A' 3053 2946 17.12      
6 A' 3033 2926 30.81      
7 A' 3022 2916 25.88      
8 A' 1745 1684 0.18      
9 A' 1572 1517 6.47      
10 A' 1560 1505 10.71      
11 A' 1539 1485 2.61      
12 A' 1464 1412 2.66      
13 A' 1460 1409 7.87      
14 A' 1410 1361 6.61      
15 A' 1380 1332 0.55      
16 A' 1349 1301 1.69      
17 A' 1160 1120 3.01      
18 A' 1081 1043 4.18      
19 A' 1062 1025 1.06      
20 A' 961 927 8.81      
21 A' 853 823 0.01      
22 A' 590 569 1.11      
23 A' 374 361 0.24      
24 A' 211 203 0.34      
25 A" 3118 3009 32.16      
26 A" 3074 2966 24.08      
27 A" 3039 2933 16.82      
28 A" 1567 1512 7.12      
29 A" 1550 1496 8.01      
30 A" 1338 1291 0.00      
31 A" 1143 1102 1.05      
32 A" 1107 1068 0.61      
33 A" 1021 986 34.65      
34 A" 856 826 5.05      
35 A" 731 705 0.68      
36 A" 298 288 2.15      
37 A" 220 212 0.65      
38 A" 199 192 2.46      
39 A" 117 113 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 30388.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 29321.3 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/3-21G
ABC
0.44009 0.08177 0.07173

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.725 -1.230 0.000
C2 -0.973 -0.170 0.000
H3 -0.271 1.797 0.000
C4 0.000 0.741 0.000
H5 -2.945 -0.265 0.884
H6 -2.945 -0.265 -0.884
H7 -2.610 1.241 0.000
C8 -2.449 0.158 0.000
H9 1.938 0.955 -0.878
H10 1.938 0.955 0.878
C11 1.491 0.466 0.000
H12 2.969 -1.136 0.000
H13 1.484 -1.530 0.888
H14 1.484 -1.530 -0.888
C15 1.879 -1.026 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.08783.06052.09932.57692.57693.10752.21263.55473.55472.79043.69532.39982.39982.6123
C21.08782.08911.33322.16292.16292.16131.51143.24243.24242.54524.05882.94552.94552.9782
H33.06052.08911.09073.49053.49052.40452.72582.52152.52152.20824.37023.86523.86523.5489
C42.09931.33321.09073.23523.23522.65792.51722.13822.13821.51593.51212.85432.85432.5793
H52.57692.16293.49053.23521.76751.77761.09825.33255.03304.58206.04294.60614.93534.9635
H62.57692.16293.49053.23521.76751.77761.09825.03305.33254.58206.04294.93534.60614.9635
H73.10752.16132.40452.65791.77761.77761.09504.64074.64074.17386.06435.02285.02285.0295
C82.21261.51142.72582.51721.09821.09821.09504.54404.54403.95185.57004.37074.37074.4870
H93.55473.24242.52152.13825.33255.03304.64074.54401.75671.10022.49163.08332.52682.1684
H103.55473.24242.52152.13825.03305.33254.64074.54401.75671.10022.49162.52683.08332.1684
C112.79042.54522.20821.51594.58204.58204.17383.95181.10021.10022.17952.18512.18511.5420
H123.69534.05884.37023.51216.04296.04296.06435.57002.49162.49162.17951.77511.77511.0952
H132.39982.94553.86522.85434.60614.93535.02284.37073.08332.52682.18511.77511.77701.0954
H142.39982.94553.86522.85434.93534.60615.02284.37072.52683.08332.18511.77511.77701.0954
C152.61232.97823.54892.57934.96354.96355.02954.48702.16842.16841.54201.09521.09541.0954

picture of 2-Pentene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 119.911 H1 C2 C8 115.732
C2 C4 H3 118.712 C2 C4 C11 126.466
C2 C8 H5 110.961 C2 C8 H6 110.961
C2 C8 H7 111.024 H3 C4 C11 114.821
C4 C2 C8 124.357 C4 C11 H9 108.586
C4 C11 H10 108.586 C4 C11 C15 115.017
H5 C8 H6 107.170 H5 C8 H7 108.292
H6 C8 H7 108.292 H9 C11 H10 105.945
H9 C11 C15 109.160 H10 C11 C15 109.160
C11 C15 H12 110.322 C11 C15 H13 110.755
C11 C15 H14 110.755 H12 C15 H13 108.258
H12 C15 H14 108.258 H13 C15 H14 108.406
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.177     0.117
2 C -0.176     -0.039
3 H 0.169     0.138
4 C -0.144     -0.258
5 H 0.198     0.125
6 H 0.198     0.125
7 H 0.193     0.128
8 C -0.598     -0.411
9 H 0.199     0.049
10 H 0.199     0.049
11 C -0.428     0.015
12 H 0.187     0.077
13 H 0.192     0.077
14 H 0.192     0.077
15 C -0.557     -0.269


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.071 -0.009 0.000 0.071
CHELPG        
AIM        
ESP 0.060 0.010 0.000 0.061


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.536 0.413 0.000
y 0.413 -32.090 0.000
z 0.000 0.000 -34.548
Traceless
 xyz
x 1.784 0.413 0.000
y 0.413 0.951 0.000
z 0.000 0.000 -2.735
Polar
3z2-r2-5.470
x2-y20.555
xy0.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.819 0.668 0.000
y 0.668 7.383 0.000
z 0.000 0.000 5.241


<r2> (average value of r2) Å2
<r2> 172.257
(<r2>)1/2 13.125