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

using model chemistry: B3LYP/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-34.196871
Energy at 298.15K-34.206931
Nuclear repulsion energy94.913244
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/CEP-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' 3158 3058 44.70      
2 A' 3121 3023 57.92      
3 A' 3115 3016 60.49      
4 A' 3111 3013 31.00      
5 A' 3031 2936 34.98      
6 A' 3015 2920 58.66      
7 A' 3005 2910 59.59      
8 A' 1727 1673 0.04      
9 A' 1520 1472 7.57      
10 A' 1507 1459 14.88      
11 A' 1495 1448 2.90      
12 A' 1433 1388 7.61      
13 A' 1427 1382 5.57      
14 A' 1381 1337 7.28      
15 A' 1346 1303 0.52      
16 A' 1321 1279 0.27      
17 A' 1153 1116 2.38      
18 A' 1099 1064 4.25      
19 A' 1045 1012 2.77      
20 A' 957 927 11.48      
21 A' 859 831 0.01      
22 A' 573 555 1.09      
23 A' 363 351 0.24      
24 A' 205 199 0.45      
25 A" 3119 3021 82.66      
26 A" 3078 2981 55.57      
27 A" 3038 2942 40.11      
28 A" 1513 1465 8.60      
29 A" 1495 1448 12.98      
30 A" 1283 1243 0.11      
31 A" 1110 1075 4.26      
32 A" 1081 1046 1.33      
33 A" 1031 999 66.05      
34 A" 847 820 5.59      
35 A" 729 706 1.58      
36 A" 292 282 3.37      
37 A" 217 210 1.22      
38 A" 198 191 3.21      
39 A" 118 114 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 30057.8 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 29108.0 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/CEP-31G
ABC
0.43088 0.07946 0.06974

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.742 -1.239 0.000
C2 -0.998 -0.173 0.000
H3 -0.283 1.826 0.000
C4 0.000 0.764 0.000
H5 -2.994 -0.254 0.889
H6 -2.994 -0.254 -0.889
H7 -2.649 1.258 0.000
C8 -2.487 0.167 0.000
H9 1.958 0.983 -0.882
H10 1.958 0.983 0.882
C11 1.506 0.484 0.000
H12 3.006 -1.124 0.000
H13 1.515 -1.536 0.893
H14 1.515 -1.536 -0.893
C15 1.907 -1.018 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09623.09942.13592.61372.61373.14182.24053.60603.60602.83293.75022.44562.44562.6584
C21.09622.12341.36902.18662.18662.18461.52673.29413.29412.58944.11582.99502.99503.0253
H33.09942.12341.09933.53153.53152.43312.75862.55102.55102.23644.41803.91523.91523.5887
C42.13591.36901.09933.28533.28532.69452.55732.15822.15821.53203.54962.89452.89452.6092
H52.61372.18663.53153.28531.77821.78841.10725.40265.10414.64676.12804.68775.01515.0392
H62.61372.18663.53153.28531.77821.78841.10725.10415.40264.64676.12805.01514.68775.0392
H73.14182.18462.43312.69451.78841.78841.10324.69804.69804.22656.13615.09295.09295.0922
C82.24051.52672.75862.55731.10721.10721.10324.60384.60384.00555.64254.43954.43954.5503
H93.60603.29412.55102.15825.40265.10414.69804.60381.76371.10902.51303.11242.55672.1864
H103.60603.29412.55102.15825.10415.40264.69804.60381.76371.10902.51302.55673.11242.1864
C112.83292.58942.23641.53204.64674.64674.22654.00551.10901.10902.19892.20812.20811.5539
H123.75024.11584.41803.54966.12806.12806.13615.64252.51302.51302.19891.78621.78621.1045
H132.44562.99503.91522.89454.68775.01515.09294.43953.11242.55672.20811.78621.78641.1044
H142.44562.99503.91522.89455.01514.68775.09294.43952.55673.11242.20811.78621.78641.1044
C152.65843.02533.58872.60925.03925.03925.09224.55032.18642.18641.55391.10451.10441.1044

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 119.676 H1 C2 C8 116.375
C2 C4 H3 118.275 C2 C4 C11 126.305
C2 C8 H5 111.235 C2 C8 H6 111.235
C2 C8 H7 111.315 H3 C4 C11 115.419
C4 C2 C8 123.949 C4 C11 H9 108.543
C4 C11 H10 108.543 C4 C11 C15 115.452
H5 C8 H6 106.842 H5 C8 H7 108.012
H6 C8 H7 108.012 H9 C11 H10 105.337
H9 C11 C15 109.242 H10 C11 C15 109.242
C11 C15 H12 110.478 C11 C15 H13 111.209
C11 C15 H14 111.209 H12 C15 H13 107.928
H12 C15 H14 107.928 H13 C15 H14 107.953
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.279      
2 C -0.131      
3 H 0.267      
4 C -0.301      
5 H 0.140      
6 H 0.140      
7 H 0.174      
8 C -0.556      
9 H 0.117      
10 H 0.117      
11 C -0.269      
12 H 0.164      
13 H 0.131      
14 H 0.131      
15 C -0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.096 0.013 0.000 0.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.273 0.581 0.000
y 0.581 -31.733 0.000
z 0.000 0.000 -34.299
Traceless
 xyz
x 1.742 0.581 0.000
y 0.581 1.053 0.000
z 0.000 0.000 -2.795
Polar
3z2-r2-5.591
x2-y20.460
xy0.581
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.519 0.781 0.000
y 0.781 7.816 0.000
z 0.000 0.000 5.790


<r2> (average value of r2) Å2
<r2> 146.333
(<r2>)1/2 12.097