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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-195.401153
Energy at 298.15K-195.411276
Nuclear repulsion energy171.080542
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 B3PW91/3-21G
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 3165 3043 52.91      
2 A 3146 3024 10.28      
3 A 3140 3019 28.61      
4 A 3133 3012 14.59      
5 A 3127 3005 16.17      
6 A 3108 2987 2.14      
7 A 3089 2969 18.12      
8 A 3054 2935 26.40      
9 A 3047 2929 20.25      
10 A 3042 2924 23.87      
11 A 1741 1673 0.90      
12 A 1565 1504 9.69      
13 A 1559 1498 9.09      
14 A 1555 1495 8.08      
15 A 1549 1488 8.25      
16 A 1536 1477 2.98      
17 A 1468 1411 8.66      
18 A 1457 1400 7.81      
19 A 1447 1391 3.34      
20 A 1363 1310 0.97      
21 A 1338 1286 1.00      
22 A 1317 1266 0.68      
23 A 1194 1148 2.71      
24 A 1119 1076 5.55      
25 A 1098 1056 0.01      
26 A 1079 1038 0.61      
27 A 1031 991 1.03      
28 A 1022 982 3.47      
29 A 945 909 13.99      
30 A 874 840 2.35      
31 A 814 782 5.36      
32 A 736 707 47.06      
33 A 583 560 8.49      
34 A 486 467 2.33      
35 A 314 302 0.04      
36 A 261 250 0.07      
37 A 224 215 0.02      
38 A 135 130 0.42      
39 A 59 56 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 30459.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 29277.6 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 B3PW91/3-21G
ABC
0.35785 0.08712 0.07957

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.154 -0.315 -0.430
H2 2.633 0.652 -0.626
H3 2.919 -1.010 -0.063
H4 1.755 -0.698 -1.376
C5 1.014 -0.154 0.603
H6 0.553 -1.129 0.795
H7 1.443 0.196 1.554
C8 -2.036 -0.693 -0.066
H9 -2.446 -0.980 -1.045
H10 -1.397 -1.507 0.288
H11 -2.886 -0.600 0.625
C12 -0.011 0.843 0.125
H13 0.374 1.855 -0.009
C14 -1.295 0.615 -0.169
H15 -1.896 1.453 -0.522

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.09691.09661.09561.54662.17372.16814.22314.68883.81395.15662.51722.83813.58154.4198
H21.09691.77811.77572.18683.08502.52534.89115.35134.66215.79522.75522.63263.95424.5997
H31.09661.77811.78192.19192.51922.49914.96555.45454.35885.85953.47183.83244.51735.4275
H41.09561.77571.78192.18172.51843.07854.01164.22433.65525.05492.78323.20833.53314.3227
C51.54662.18682.19192.18171.09521.10033.16883.92032.78223.92471.50772.19562.55293.5092
H62.17373.08502.51922.51841.09521.76722.76363.52172.05023.48342.15783.09572.71773.7948
H72.16812.52532.49913.07851.10031.76723.93924.82273.54484.49752.13862.51733.26154.1272
C84.22314.89114.96554.01163.16882.76363.93921.09901.09351.09902.54873.50751.50672.1988
H94.68885.35135.45454.22433.92033.52174.82271.09901.77551.76803.25894.13082.15322.5494
H103.81394.66214.35883.65522.78222.05023.54481.09351.77551.77532.73243.81092.17233.1089
H115.15665.79525.85955.05493.92473.48344.49751.09901.76801.77533.25454.12902.15312.5517
C122.51722.75523.47182.78321.50772.15782.13862.54873.25892.73243.25451.09111.33642.0838
H132.83812.63263.83243.20832.19563.09572.51733.50754.13083.81094.12901.09112.08512.3609
C143.58153.95424.51733.53312.55292.71773.26151.50672.15322.17232.15311.33642.08511.0904
H154.41984.59975.42754.32273.50923.79484.12722.19882.54943.10892.55172.08382.36091.0904

picture of 2-Pentene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.545 C1 C5 H7 108.820
C1 C5 C12 110.999 H2 C1 H3 108.317
H2 C1 H4 108.171 H2 C1 C5 110.478
H3 C1 H4 108.750 H3 C1 C5 110.896
H4 C1 C5 110.153 C5 C12 H13 114.357
C5 C12 C14 127.584 H6 C5 H7 107.206
H6 C5 C12 110.994 H7 C5 C12 109.175
C8 C14 C12 127.278 C8 C14 H15 114.745
H9 C8 H10 108.157 H9 C8 H11 107.098
H9 C8 C14 110.466 H10 C8 H11 108.132
H10 C8 C14 112.345 H11 C8 C14 110.459
C12 C14 H15 117.976 H13 C12 C14 118.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.606      
2 H 0.208      
3 H 0.207      
4 H 0.218      
5 C -0.502      
6 H 0.220      
7 H 0.224      
8 C -0.675      
9 H 0.223      
10 H 0.220      
11 H 0.223      
12 C -0.167      
13 H 0.201      
14 C -0.197      
15 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.014 -0.203 -0.006 0.203
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.371 0.440 0.922
y 0.440 -32.058 -0.518
z 0.922 -0.518 -34.291
Traceless
 xyz
x 1.804 0.440 0.922
y 0.440 0.773 -0.518
z 0.922 -0.518 -2.577
Polar
3z2-r2-5.154
x2-y20.687
xy0.440
xz0.922
yz-0.518


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> 163.495
(<r2>)1/2 12.787