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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-195.182461
Energy at 298.15K-195.192475
Nuclear repulsion energy170.146106
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 PBEPBE/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 3087 3058 54.51      
2 A 3068 3040 25.62      
3 A 3066 3038 14.02      
4 A 3058 3030 25.73      
5 A 3050 3023 5.19      
6 A 3029 3002 2.61      
7 A 3014 2987 18.25      
8 A 2981 2954 27.45      
9 A 2969 2942 18.57      
10 A 2968 2941 25.85      
11 A 1682 1667 1.11      
12 A 1525 1511 8.01      
13 A 1518 1504 8.60      
14 A 1513 1500 7.21      
15 A 1507 1493 7.56      
16 A 1493 1480 2.61      
17 A 1424 1411 8.25      
18 A 1411 1398 7.26      
19 A 1402 1390 2.76      
20 A 1319 1307 1.12      
21 A 1298 1287 1.22      
22 A 1279 1267 0.78      
23 A 1160 1150 2.97      
24 A 1084 1074 4.66      
25 A 1061 1051 0.03      
26 A 1047 1038 0.61      
27 A 999 990 4.22      
28 A 982 973 0.53      
29 A 923 915 14.53      
30 A 853 845 2.18      
31 A 791 784 4.46      
32 A 709 702 44.65      
33 A 569 563 8.66      
34 A 471 466 2.30      
35 A 309 306 0.05      
36 A 252 250 0.06      
37 A 221 219 0.02      
38 A 142 141 0.46      
39 A 60 59 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 29646.5 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 29376.7 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 PBEPBE/3-21G
ABC
0.35363 0.08635 0.07884

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.164 -0.315 -0.432
H2 2.645 0.660 -0.626
H3 2.933 -1.017 -0.065
H4 1.761 -0.696 -1.387
C5 1.017 -0.158 0.605
H6 0.549 -1.140 0.791
H7 1.449 0.189 1.565
C8 -2.044 -0.697 -0.067
H9 -2.453 -0.990 -1.053
H10 -1.396 -1.512 0.293
H11 -2.902 -0.605 0.626
C12 -0.010 0.848 0.128
H13 0.381 1.867 -0.006
C14 -1.303 0.619 -0.170
H15 -1.909 1.463 -0.525

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.10491.10451.10341.55422.18712.18044.24044.70673.82525.18332.52812.85003.59974.4451
H21.10491.79191.78862.19843.10472.53984.91285.37504.67915.82542.76592.63913.97404.6252
H31.10451.79191.79572.20442.53632.51244.98755.47654.37275.89083.48963.85164.54235.4601
H41.10341.78861.79572.19332.53163.09744.02754.23773.66865.08012.79573.22203.54934.3447
C51.55422.19842.20442.19331.10381.10863.17973.93482.78503.94471.51422.20822.56613.5309
H62.18713.10472.53632.53161.10381.78202.76693.52652.04233.49632.16873.11512.72873.8146
H72.18042.53982.51243.09741.10861.78203.95624.84503.55104.52212.15152.53493.28204.1563
C84.24044.91284.98754.02753.17972.76693.95621.10711.10181.10712.56153.52911.51322.2119
H94.70675.37505.47654.23773.93483.52654.84501.10711.78951.78033.27744.15782.16542.5670
H103.82524.67914.37273.66862.78502.04233.55101.10181.78951.78912.74223.82962.18253.1280
H115.18335.82545.89085.08013.94473.49634.52211.10711.78031.78913.27494.15792.16542.5668
C122.52812.76593.48962.79571.51422.16872.15152.56153.27742.74223.27491.09951.34672.1008
H132.85002.63913.85163.22202.20823.11512.53493.52914.15783.82964.15791.09952.10242.3828
C143.59973.97404.54233.54932.56612.72873.28201.51322.16542.18252.16541.34672.10241.0986
H154.44514.62525.46014.34473.53093.81464.15632.21192.56703.12802.56682.10082.38281.0986

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 109.569 C1 C5 H7 108.783
C1 C5 C12 110.952 H2 C1 H3 108.395
H2 C1 H4 108.180 H2 C1 C5 110.389
H3 C1 H4 108.842 H3 C1 C5 110.886
H4 C1 C5 110.078 C5 C12 H13 114.385
C5 C12 C14 127.426 H6 C5 H7 107.304
H6 C5 C12 110.888 H7 C5 C12 109.249
C8 C14 C12 127.094 C8 C14 H15 114.824
H9 C8 H10 108.219 H9 C8 H11 107.037
H9 C8 C14 110.507 H10 C8 H11 108.190
H10 C8 C14 112.200 H11 C8 C14 110.508
C12 C14 H15 118.081 H13 C12 C14 118.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.585      
2 H 0.201      
3 H 0.200      
4 H 0.210      
5 C -0.483      
6 H 0.210      
7 H 0.215      
8 C -0.656      
9 H 0.215      
10 H 0.213      
11 H 0.216      
12 C -0.149      
13 H 0.185      
14 C -0.180      
15 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.019 -0.219 -0.007 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.435 0.457 0.909
y 0.457 -32.203 -0.498
z 0.909 -0.498 -34.362
Traceless
 xyz
x 1.848 0.457 0.909
y 0.457 0.695 -0.498
z 0.909 -0.498 -2.543
Polar
3z2-r2-5.086
x2-y20.768
xy0.457
xz0.909
yz-0.498


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.440 0.365 0.740
y 0.365 7.070 -0.209
z 0.740 -0.209 5.664


<r2> (average value of r2) Å2
<r2> 164.918
(<r2>)1/2 12.842