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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-34.213553
Energy at 298.15K-34.223650
Nuclear repulsion energy95.258971
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3114 3035 48.16      
2 A' 3079 3001 44.99      
3 A' 3071 2993 56.50      
4 A' 3068 2990 24.29      
5 A' 2986 2910 31.41      
6 A' 2970 2894 59.44      
7 A' 2960 2884 55.30      
8 A' 1706 1662 0.03      
9 A' 1530 1491 7.64      
10 A' 1518 1479 12.33      
11 A' 1508 1469 1.99      
12 A' 1436 1400 7.27      
13 A' 1432 1396 3.71      
14 A' 1384 1349 8.19      
15 A' 1338 1304 0.71      
16 A' 1322 1288 0.37      
17 A' 1148 1119 1.61      
18 A' 1089 1062 3.86      
19 A' 1046 1019 1.55      
20 A' 953 929 9.61      
21 A' 850 828 0.03      
22 A' 577 562 0.75      
23 A' 363 354 0.23      
24 A' 202 197 0.33      
25 A" 3071 2993 62.97      
26 A" 3033 2956 43.97      
27 A" 2988 2912 31.44      
28 A" 1525 1486 8.85      
29 A" 1505 1467 9.34      
30 A" 1290 1257 0.40      
31 A" 1115 1087 1.94      
32 A" 1078 1051 0.30      
33 A" 1010 984 41.41      
34 A" 836 815 3.15      
35 A" 723 705 0.57      
36 A" 291 284 2.64      
37 A" 215 210 0.83      
38 A" 197 192 2.58      
39 A" 116 113 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 29821.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 29060.8 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 B3LYP/CEP-121G
ABC
0.43763 0.07957 0.06996

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.757 -1.226 0.000
C2 -1.000 -0.161 0.000
H3 -0.269 1.816 0.000
C4 0.000 0.755 0.000
H5 -2.988 -0.236 0.884
H6 -2.988 -0.236 -0.884
H7 -2.642 1.268 0.000
C8 -2.482 0.182 0.000
H9 1.950 0.968 -0.876
H10 1.950 0.968 0.876
C11 1.501 0.471 0.000
H12 3.000 -1.124 0.000
H13 1.522 -1.543 0.888
H14 1.522 -1.543 -0.888
C15 1.907 -1.024 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09263.08132.12012.59572.59573.12622.22693.59303.59302.82403.75852.46612.46612.6712
C21.09262.10811.35572.17682.17682.17641.52133.27813.27812.57934.11473.01003.01003.0323
H33.08132.10811.09553.51983.51982.43552.75152.53212.53212.22344.39703.90943.90943.5781
C42.12011.35571.09553.26983.26982.69132.54752.14862.14861.52743.53982.89562.89562.6075
H52.59572.17683.51983.26981.76761.77891.10085.37905.08294.62926.11784.69525.01855.0358
H62.59572.17683.51983.26981.76761.77891.10085.08295.37904.62926.11785.01854.69525.0358
H73.12622.17642.43552.69131.77891.77891.09774.68444.68444.21876.12825.10175.10175.0935
C82.22691.52132.75152.54751.10081.10081.09774.58614.58613.99355.63594.44944.44944.5517
H93.59303.27812.53212.14865.37905.08294.68444.58611.75291.10352.49963.09932.54792.1771
H103.59303.27812.53212.14865.08295.37904.68444.58611.75291.10352.49962.54793.09932.1771
C112.82402.57932.22341.52744.62924.62924.21873.99351.10351.10352.18882.20122.20121.5488
H123.75854.11474.39703.53986.11786.11786.12825.63592.49962.49962.18881.77511.77511.0981
H132.46613.01003.90942.89564.69525.01855.10174.44943.09932.54792.20121.77511.77651.0985
H142.46613.01003.90942.89565.01854.69525.10174.44942.54793.09932.20121.77511.77651.0985
C152.67123.03233.57812.60755.03585.03585.09354.55172.17712.17711.54881.09811.09851.0985

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 119.601 H1 C2 C8 115.882
C2 C4 H3 118.253 C2 C4 C11 126.821
C2 C8 H5 111.218 C2 C8 H6 111.218
C2 C8 H7 111.376 H3 C4 C11 114.926
C4 C2 C8 124.518 C4 C11 H9 108.433
C4 C11 H10 108.433 C4 C11 C15 115.910
H5 C8 H6 106.800 H5 C8 H7 108.017
H6 C8 H7 108.017 H9 C11 H10 105.169
H9 C11 C15 109.179 H10 C11 C15 109.179
C11 C15 H12 110.409 C11 C15 H13 111.361
C11 C15 H14 111.361 H12 C15 H13 107.822
H12 C15 H14 107.822 H13 C15 H14 107.914
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.135      
2 C 0.053      
3 H 0.126      
4 C -0.090      
5 H 0.152      
6 H 0.152      
7 H 0.158      
8 C -0.613      
9 H 0.139      
10 H 0.139      
11 C -0.306      
12 H 0.141      
13 H 0.148      
14 H 0.148      
15 C -0.482      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.085 0.001 0.000 0.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.133 0.497 0.000
y 0.497 -32.746 0.000
z 0.000 0.000 -34.974
Traceless
 xyz
x 1.727 0.497 0.000
y 0.497 0.807 0.000
z 0.000 0.000 -2.534
Polar
3z2-r2-5.068
x2-y20.613
xy0.497
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.319 0.794 0.000
y 0.794 8.747 0.000
z 0.000 0.000 6.630


<r2> (average value of r2) Å2
<r2> 146.401
(<r2>)1/2 12.100