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

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-195.168155
Energy at 298.15K-195.178502
Nuclear repulsion energy171.652322
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 HF/6-31G(2df,p)
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 3296 2985 66.07      
2 A 3270 2961 18.02      
3 A 3264 2956 23.57      
4 A 3239 2933 48.10      
5 A 3233 2928 47.09      
6 A 3217 2913 6.87      
7 A 3205 2902 34.17      
8 A 3164 2865 22.04      
9 A 3161 2863 48.23      
10 A 3156 2858 40.51      
11 A 1891 1712 1.68      
12 A 1626 1472 4.29      
13 A 1615 1462 4.29      
14 A 1613 1461 1.68      
15 A 1604 1453 3.16      
16 A 1601 1450 2.24      
17 A 1561 1414 3.06      
18 A 1533 1388 0.85      
19 A 1528 1384 2.13      
20 A 1455 1318 12.90      
21 A 1404 1271 0.05      
22 A 1381 1251 0.04      
23 A 1263 1144 0.13      
24 A 1187 1074 4.36      
25 A 1170 1060 2.86      
26 A 1129 1023 0.02      
27 A 1122 1016 0.48      
28 A 1087 984 2.26      
29 A 991 897 7.51      
30 A 912 826 1.23      
31 A 852 771 5.17      
32 A 789 715 23.18      
33 A 604 547 5.28      
34 A 511 463 1.06      
35 A 323 293 0.04      
36 A 282 255 0.03      
37 A 234 212 0.01      
38 A 141 127 0.21      
39 A 59 54 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 31837.3 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 28828.7 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 HF/6-31G(2df,p)
ABC
0.37462 0.08566 0.07849

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.184 -0.291 -0.414
H2 2.658 0.674 -0.571
H3 2.941 -0.978 -0.047
H4 1.838 -0.651 -1.378
C5 1.020 -0.178 0.577
H6 0.582 -1.156 0.735
H7 1.411 0.143 1.542
C8 -2.069 -0.675 -0.078
H9 -2.509 -0.904 -1.046
H10 -1.465 -1.521 0.223
H11 -2.892 -0.583 0.627
C12 -0.018 0.815 0.125
H13 0.355 1.823 0.008
C14 -1.291 0.610 -0.149
H15 -1.871 1.464 -0.465

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.08671.08601.08591.53262.15202.14674.28344.77433.90285.18952.52212.82693.59984.4187
H21.08671.75601.75472.17433.06002.51024.94075.42324.73815.81542.76882.63863.97274.5991
H31.08601.75601.75942.17232.49052.47365.01915.54064.44735.88463.46373.81234.52135.4122
H41.08591.75471.75942.17132.50853.05544.11734.36603.77175.13732.80213.20003.59044.3658
C51.53262.17432.17232.17131.08361.08913.19703.95162.84723.93321.50562.18332.54753.4843
H62.15203.06002.49052.50851.08361.73982.81513.57642.14203.52322.14913.07472.72243.7849
H72.14672.51022.47363.05541.08911.73983.92544.81273.57544.45892.12132.50763.22184.0679
C84.28344.94075.01914.11733.19702.81513.92541.08761.08211.08772.54383.48161.50362.1822
H94.77435.42325.54064.36603.95163.57644.81271.08761.75471.74693.24574.09252.14032.5203
H103.90284.73814.44733.77172.84722.14203.57541.08211.75471.75482.74993.81272.16983.0895
H115.18955.81545.88465.13733.93323.52324.45891.08771.74691.75483.23524.08772.14142.5342
C122.52212.76883.46372.80211.50562.14912.12132.54383.24572.74993.23521.08041.31892.0506
H132.82692.63863.81233.20002.18333.07472.50763.48164.09253.81274.08771.08042.05072.3041
C143.59983.97274.52133.59042.54752.72243.22181.50362.14032.16982.14141.31892.05071.0795
H154.41874.59915.41224.36583.48433.78494.06792.18222.52033.08952.53422.05062.30411.0795

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 109.488 C1 C5 H7 108.749
C1 C5 C12 112.223 H2 C1 H3 107.847
H2 C1 H4 107.739 H2 C1 C5 111.079
H3 C1 H4 108.203 H3 C1 C5 110.953
H4 C1 C5 110.885 C5 C12 H13 114.185
C5 C12 C14 128.708 H6 C5 H7 106.403
H6 C5 C12 111.158 H7 C5 C12 108.619
C8 C14 C12 128.530 C8 C14 H15 114.301
H9 C8 H10 107.943 H9 C8 H11 106.849
H9 C8 C14 110.349 H10 C8 H11 107.941
H10 C8 C14 113.089 H11 C8 C14 110.432
C12 C14 H15 117.169 H13 C12 C14 117.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 H 0.131      
3 H 0.131      
4 H 0.136      
5 C -0.254      
6 H 0.127      
7 H 0.128      
8 C -0.440      
9 H 0.140      
10 H 0.140      
11 H 0.141      
12 C -0.108      
13 H 0.123      
14 C -0.114      
15 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.015 -0.170 0.041 0.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.142 0.279 0.863
y 0.279 -32.524 -0.342
z 0.863 -0.342 -34.311
Traceless
 xyz
x 1.275 0.279 0.863
y 0.279 0.703 -0.342
z 0.863 -0.342 -1.978
Polar
3z2-r2-3.957
x2-y20.382
xy0.279
xz0.863
yz-0.342


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.604 0.337 0.612
y 0.337 7.225 -0.119
z 0.612 -0.119 6.204


<r2> (average value of r2) Å2
<r2> 164.977
(<r2>)1/2 12.844