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

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-194.369656
Energy at 298.15K-194.379827
Nuclear repulsion energy171.490281
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 LSDA/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' 3081 3026 19.30      
2 A' 3072 3017 19.10      
3 A' 3056 3001 9.77      
4 A' 3052 2997 8.49      
5 A' 2984 2930 12.32      
6 A' 2966 2912 20.79      
7 A' 2953 2900 15.93      
8 A' 1731 1700 0.12      
9 A' 1506 1479 12.06      
10 A' 1490 1464 17.00      
11 A' 1467 1441 8.11      
12 A' 1396 1371 14.22      
13 A' 1395 1370 13.73      
14 A' 1351 1327 2.19      
15 A' 1322 1298 1.29      
16 A' 1296 1272 2.42      
17 A' 1145 1124 1.86      
18 A' 1100 1081 5.95      
19 A' 1036 1017 5.73      
20 A' 963 946 15.40      
21 A' 871 855 0.25      
22 A' 588 578 2.67      
23 A' 373 366 0.33      
24 A' 220 216 0.45      
25 A" 3060 3005 16.60      
26 A" 3024 2970 11.62      
27 A" 2980 2926 8.88      
28 A" 1497 1470 12.66      
29 A" 1480 1453 12.71      
30 A" 1283 1260 0.12      
31 A" 1098 1079 0.72      
32 A" 1062 1043 2.97      
33 A" 975 957 38.88      
34 A" 829 814 7.97      
35 A" 706 693 1.26      
36 A" 312 306 2.69      
37 A" 240 236 0.27      
38 A" 204 200 4.44      
39 A" 139 137 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 29651.1 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 29117.3 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 LSDA/3-21G*
ABC
0.43594 0.08489 0.07404

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.652 -1.246 0.000
C2 -0.947 -0.186 0.000
H3 -0.305 1.810 0.000
C4 0.000 0.752 0.000
H5 -2.905 -0.339 0.889
H6 -2.905 -0.339 -0.889
H7 -2.600 1.186 0.000
C8 -2.410 0.098 0.000
H9 1.926 0.989 -0.884
H10 1.926 0.989 0.884
C11 1.473 0.493 0.000
H12 2.934 -1.121 0.000
H13 1.426 -1.485 0.894
H14 1.426 -1.485 -0.894
C15 1.839 -0.983 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.10003.07562.10142.58652.58653.11582.21303.52453.52452.74573.58772.27432.27432.5046
C21.10002.09701.33292.15602.15602.14821.49073.22753.22752.51353.99172.84852.84852.8975
H33.07562.09701.10133.48843.48842.37802.71382.53662.53662.21294.36843.82753.82753.5211
C42.10141.33291.10133.22793.22792.63562.49752.13262.13261.49583.48082.79892.79892.5282
H52.58652.15603.48843.22791.77851.79141.10725.31495.01024.54435.95774.47964.82154.8693
H62.58652.15603.48843.22791.77851.79141.10725.01025.31494.54435.95774.82154.47964.8693
H73.11582.14822.37802.63561.79141.79141.10474.61564.61564.13145.99524.91274.91274.9402
C82.21301.49072.71382.49751.10721.10721.10474.51454.51453.90355.48134.24464.24464.3845
H93.52453.22752.53662.13265.31495.01024.61564.51451.76871.11052.50013.08732.52362.1629
H103.52453.22752.53662.13265.01025.31494.61564.51451.76871.11052.50012.52363.08732.1629
C112.74572.51352.21291.49584.54434.54434.13143.90351.11051.11052.17692.17082.17081.5206
H123.58773.99174.36843.48085.95775.95775.99525.48132.50012.50012.17691.79051.79051.1035
H132.27432.84853.82752.79894.47964.82154.91274.24463.08732.52362.17081.79051.78841.1054
H142.27432.84853.82752.79894.82154.47964.91274.24462.52363.08732.17081.79051.78841.1054
C152.50462.89753.52112.52824.86934.86934.94024.38452.16292.16291.52061.10351.10541.1054

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 119.177 H1 C2 C8 116.533
C2 C4 H3 118.657 C2 C4 C11 125.293
C2 C8 H5 111.319 C2 C8 H6 111.319
C2 C8 H7 110.845 H3 C4 C11 116.050
C4 C2 C8 124.290 C4 C11 H9 108.926
C4 C11 H10 108.926 C4 C11 C15 113.892
H5 C8 H6 106.853 H5 C8 H7 108.168
H6 C8 H7 108.168 H9 C11 H10 105.569
H9 C11 C15 109.596 H10 C11 C15 109.596
C11 C15 H12 111.119 C11 C15 H13 110.515
C11 C15 H14 110.515 H12 C15 H13 108.307
H12 C15 H14 108.307 H13 C15 H14 107.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.189      
2 C -0.178      
3 H 0.186      
4 C -0.155      
5 H 0.225      
6 H 0.225      
7 H 0.216      
8 C -0.685      
9 H 0.225      
10 H 0.225      
11 C -0.488      
12 H 0.213      
13 H 0.217      
14 H 0.217      
15 C -0.635      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.078 -0.007 0.000 0.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.969 0.442 0.000
y 0.442 -31.854 0.000
z 0.000 0.000 -34.475
Traceless
 xyz
x 2.195 0.442 0.000
y 0.442 0.868 0.000
z 0.000 0.000 -3.064
Polar
3z2-r2-6.127
x2-y20.885
xy0.442
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.112 0.680 0.000
y 0.680 7.546 0.000
z 0.000 0.000 5.355


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000