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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-196.507084
Energy at 298.15K-196.517217
Nuclear repulsion energy171.129696
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 mPW1PW91/6-31G(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' 3176 3032 26.20      
2 A' 3148 3006 22.21      
3 A' 3145 3003 29.25      
4 A' 3139 2997 11.76      
5 A' 3062 2923 19.94      
6 A' 3044 2906 34.89      
7 A' 3030 2893 31.71      
8 A' 1771 1690 0.13      
9 A' 1510 1441 4.42      
10 A' 1494 1426 8.99      
11 A' 1476 1409 2.43      
12 A' 1417 1353 7.22      
13 A' 1409 1345 0.22      
14 A' 1378 1316 8.67      
15 A' 1340 1279 0.68      
16 A' 1319 1259 0.11      
17 A' 1154 1101 0.77      
18 A' 1108 1058 6.73      
19 A' 1035 988 2.81      
20 A' 963 919 8.40      
21 A' 870 831 0.07      
22 A' 585 558 0.86      
23 A' 363 347 0.20      
24 A' 202 193 0.31      
25 A" 3140 2998 27.74      
26 A" 3103 2962 19.83      
27 A" 3056 2918 17.27      
28 A" 1499 1431 6.13      
29 A" 1480 1413 5.62      
30 A" 1293 1234 0.11      
31 A" 1107 1057 1.73      
32 A" 1068 1020 0.38      
33 A" 1025 978 21.84      
34 A" 833 795 2.49      
35 A" 715 682 0.65      
36 A" 301 288 1.76      
37 A" 230 220 0.08      
38 A" 204 195 2.23      
39 A" 131 125 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 30160.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 28794.1 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 mPW1PW91/6-31G(2df,p)
ABC
0.44891 0.08251 0.07249

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.720 -1.230 0.000
C2 -0.974 -0.172 0.000
H3 -0.276 1.786 0.000
C4 0.000 0.732 0.000
H5 -2.935 -0.277 0.878
H6 -2.935 -0.277 -0.878
H7 -2.609 1.226 0.000
C8 -2.435 0.147 0.000
H9 1.920 0.966 -0.869
H10 1.920 0.966 0.869
C11 1.475 0.463 0.000
H12 2.968 -1.105 0.000
H13 1.497 -1.522 0.883
H14 1.497 -1.522 -0.883
C15 1.880 -1.004 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.08793.04872.08962.56652.56653.09832.19953.54203.54202.77163.68952.40362.40362.6094
C21.08792.07941.32932.15072.15072.15071.49473.22953.22952.53044.05092.95102.95102.9730
H33.04872.07941.09003.47813.47812.39892.71032.50052.50052.19474.34503.85593.85593.5260
C42.08961.32931.09003.22543.22542.65502.50392.12072.12071.49913.48992.84612.84612.5585
H52.56652.15073.47813.22541.75521.77071.09575.30755.01194.55696.02484.60344.92874.9480
H62.56652.15073.47813.22541.75521.77071.09575.01195.30754.55696.02484.92874.60344.9480
H73.09832.15072.39892.65501.77071.77071.09264.61884.61884.15416.04385.01855.01855.0118
C82.19951.49472.71032.50391.09571.09571.09264.51554.51553.92225.54554.36144.36144.4654
H93.54203.22952.50052.12075.30755.01194.61884.51551.73841.09852.47773.07252.52372.1531
H103.54203.22952.50052.12075.01195.30754.61884.51551.73841.09852.47772.52373.07252.1531
C112.77162.53042.19471.49914.55694.55694.15413.92221.09851.09852.16472.17292.17291.5216
H123.68954.05094.34503.48996.02486.02486.04385.54552.47772.47772.16471.76601.76601.0925
H132.40362.95103.85592.84614.60344.92875.01854.36143.07252.52372.17291.76601.76661.0935
H142.40362.95103.85592.84614.92874.60345.01854.36142.52373.07252.17291.76601.76661.0935
C152.60942.97303.52602.55854.94804.94805.01184.46542.15312.15311.52161.09251.09351.0935

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 119.309 H1 C2 C8 115.890
C2 C4 H3 118.180 C2 C4 C11 126.814
C2 C8 H5 111.314 C2 C8 H6 111.314
C2 C8 H7 111.508 H3 C4 C11 115.005
C4 C2 C8 124.801 C4 C11 H9 108.469
C4 C11 H10 108.469 C4 C11 C15 115.769
H5 C8 H6 106.437 H5 C8 H7 108.025
H6 C8 H7 108.025 H9 C11 H10 104.613
H9 C11 C15 109.466 H10 C11 C15 109.466
C11 C15 H12 110.734 C11 C15 H13 111.324
C11 C15 H14 111.324 H12 C15 H13 107.771
H12 C15 H14 107.771 H13 C15 H14 107.752
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.111      
2 C -0.067      
3 H 0.107      
4 C -0.076      
5 H 0.148      
6 H 0.148      
7 H 0.143      
8 C -0.493      
9 H 0.136      
10 H 0.136      
11 C -0.269      
12 H 0.139      
13 H 0.147      
14 H 0.147      
15 C -0.457      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.095 0.014 0.000 0.096
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.286 0.518 0.000
y 0.518 -31.785 0.000
z 0.000 0.000 -33.630
Traceless
 xyz
x 1.421 0.518 0.000
y 0.518 0.673 0.000
z 0.000 0.000 -2.095
Polar
3z2-r2-4.190
x2-y20.499
xy0.518
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.700 0.566 0.000
y 0.566 8.021 0.000
z 0.000 0.000 6.045


<r2> (average value of r2) Å2
<r2> 170.483
(<r2>)1/2 13.057