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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-196.466689
Energy at 298.15K-196.476780
Nuclear repulsion energy170.583202
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 B3PW91/6-31G*
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' 3168 3031 31.61      
2 A' 3139 3003 28.63      
3 A' 3137 3001 33.92      
4 A' 3130 2994 12.78      
5 A' 3059 2926 21.88      
6 A' 3038 2906 39.12      
7 A' 3021 2891 36.37      
8 A' 1769 1692 0.18      
9 A' 1533 1467 5.22      
10 A' 1518 1452 9.34      
11 A' 1502 1437 2.12      
12 A' 1440 1378 7.21      
13 A' 1433 1371 0.60      
14 A' 1392 1332 9.94      
15 A' 1347 1288 0.82      
16 A' 1331 1273 0.03      
17 A' 1159 1108 1.31      
18 A' 1107 1059 5.53      
19 A' 1045 1000 2.68      
20 A' 966 924 8.34      
21 A' 872 834 0.05      
22 A' 584 559 0.94      
23 A' 364 349 0.21      
24 A' 202 194 0.30      
25 A" 3133 2997 34.04      
26 A" 3092 2959 25.47      
27 A" 3046 2914 22.48      
28 A" 1524 1458 6.86      
29 A" 1504 1439 6.77      
30 A" 1302 1246 0.06      
31 A" 1114 1065 1.38      
32 A" 1073 1027 0.00      
33 A" 1016 972 27.09      
34 A" 832 796 3.30      
35 A" 712 682 0.56      
36 A" 302 289 1.95      
37 A" 226 216 0.19      
38 A" 201 193 2.48      
39 A" 126 120 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 30228.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 28919.8 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 B3PW91/6-31G*
ABC
0.44713 0.08187 0.07196

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.726 -1.234 0.000
C2 -0.980 -0.174 0.000
H3 -0.276 1.790 0.000
C4 0.000 0.733 0.000
H5 -2.946 -0.276 0.880
H6 -2.946 -0.276 -0.880
H7 -2.618 1.229 0.000
C8 -2.444 0.148 0.000
H9 1.925 0.967 -0.872
H10 1.925 0.967 0.872
C11 1.479 0.463 0.000
H12 2.980 -1.103 0.000
H13 1.507 -1.526 0.886
H14 1.507 -1.526 -0.886
C15 1.889 -1.006 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09063.05812.09712.57382.57383.10672.20513.55433.55432.78293.70762.41922.41922.6244
C21.09062.08661.33532.15662.15662.15701.49863.24073.24072.54044.06722.96592.96592.9868
H33.05812.08661.09283.48893.48892.40812.71942.50712.50712.20054.35593.86833.86833.5362
C42.09711.33531.09283.23603.23602.66462.51262.12652.12651.50373.50012.85652.85652.5673
H52.57382.15663.48893.23601.76041.77421.09865.32405.02744.57226.04774.62514.95074.9682
H62.57382.15663.48893.23601.76041.77421.09865.02745.32404.57226.04774.95074.62514.9682
H73.10672.15702.40812.66461.77421.77421.09544.63384.63384.16826.06435.03905.03905.0305
C82.20511.49862.71942.51261.09861.09861.09544.52974.52973.93555.56574.38084.38084.4833
H93.55433.24072.50712.12655.32405.02744.63384.52971.74391.10112.48123.07892.52802.1568
H103.55433.24072.50712.12655.02745.32404.63384.52971.74391.10112.48122.52803.07892.1568
C112.78292.54042.20051.50374.57224.57224.16823.93551.10111.10112.16932.17822.17821.5251
H123.70764.06724.35593.50016.04776.04776.06435.56572.48122.48122.16931.77001.77001.0953
H132.41922.96593.86832.85654.62514.95075.03904.38083.07892.52802.17821.77001.77111.0961
H142.41922.96593.86832.85654.95074.62515.03904.38082.52803.07892.17821.77001.77111.0961
C152.62442.98683.53622.56734.96824.96825.03054.48332.15682.15681.52511.09531.09611.0961

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 119.307 H1 C2 C8 115.887
C2 C4 H3 118.153 C2 C4 C11 126.878
C2 C8 H5 111.344 C2 C8 H6 111.344
C2 C8 H7 111.568 H3 C4 C11 114.969
C4 C2 C8 124.806 C4 C11 H9 108.459
C4 C11 H10 108.459 C4 C11 C15 115.907
H5 C8 H6 106.500 H5 C8 H7 107.930
H6 C8 H7 107.930 H9 C11 H10 104.716
H9 C11 C15 109.355 H10 C11 C15 109.355
C11 C15 H12 110.686 C11 C15 H13 111.348
C11 C15 H14 111.348 H12 C15 H13 107.752
H12 C15 H14 107.752 H13 C15 H14 107.791
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.148     0.100
2 C -0.116     -0.009
3 H 0.141     0.127
4 C -0.128     -0.262
5 H 0.175     0.116
6 H 0.175     0.116
7 H 0.173     0.119
8 C -0.556     -0.391
9 H 0.170     0.033
10 H 0.170     0.033
11 C -0.346     0.068
12 H 0.168     0.067
13 H 0.172     0.068
14 H 0.172     0.068
15 C -0.518     -0.254


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.087 0.008 0.000 0.087
CHELPG        
AIM        
ESP 0.077 0.032 0.000 0.083


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.294 0.482 0.000
y 0.482 -31.815 0.000
z 0.000 0.000 -33.898
Traceless
 xyz
x 1.563 0.482 0.000
y 0.482 0.781 0.000
z 0.000 0.000 -2.344
Polar
3z2-r2-4.687
x2-y20.521
xy0.482
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 171.637
(<r2>)1/2 13.101