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All results from a given calculation for C5H10 (2-Butene, 2-methyl-)

using model chemistry: B3LYP/6-31G**

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/6-31G**
 hartrees
Energy at 0K-196.557775
Energy at 298.15K-196.567611
Nuclear repulsion energy174.015406
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/6-31G**
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 3146 3022 51.30      
2 A 3137 3014 30.63      
3 A 3124 3002 4.91      
4 A 3120 2998 16.39      
5 A 3029 2910 7.88      
6 A 3026 2907 79.28      
7 A 3018 2900 26.75      
8 A 1758 1689 1.01      
9 A 1513 1453 8.89      
10 A 1512 1452 1.02      
11 A 1496 1437 1.19      
12 A 1437 1381 0.60      
13 A 1429 1373 0.56      
14 A 1425 1369 4.56      
15 A 1380 1326 4.09      
16 A 1241 1192 4.94      
17 A 1137 1092 9.65      
18 A 1074 1031 6.05      
19 A 974 936 2.06      
20 A 964 926 1.62      
21 A 774 744 1.62      
22 A 527 506 2.17      
23 A 383 368 0.41      
24 A 300 288 0.24      
25 A 3071 2950 41.18      
26 A 3070 2949 30.02      
27 A 3064 2944 14.32      
28 A 1504 1445 14.78      
29 A 1497 1438 1.46      
30 A 1486 1427 0.62      
31 A 1109 1066 0.42      
32 A 1066 1024 0.66      
33 A 1023 983 1.90      
34 A 834 801 9.99      
35 A 453 435 1.98      
36 A 264 254 1.29      
37 A 187 180 1.14      
38 A 152 146 0.07      
39 A 127 122 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 29913.0 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 28740.4 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/6-31G**
ABC
0.26745 0.11669 0.08507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.508 0.493 0.000
H2 -1.969 -0.496 0.000
H3 -1.880 1.037 0.879
H4 -1.880 1.037 -0.879
C5 0.269 -2.098 0.000
H6 0.651 -2.634 -0.879
H7 0.651 -2.634 0.879
H8 -0.819 -2.195 0.000
C9 0.737 -0.670 0.000
H10 1.821 -0.550 0.000
C11 0.000 0.451 0.000
C12 0.661 1.809 0.000
H13 1.752 1.732 0.000
H14 0.362 2.396 0.879
H15 0.362 2.396 -0.879

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.09131.09801.09803.14193.90003.90002.77542.52813.48841.50882.53733.48772.80882.8088
H21.09131.76881.76882.75263.49383.49382.05222.71143.79042.18533.49764.33743.81693.8169
H31.09801.76881.75733.90074.79214.45823.51333.24514.12122.15622.79763.80092.62163.1563
H41.09801.76881.75733.90074.45824.79213.51333.24514.12122.15622.79763.80093.15632.6216
C53.14192.75263.90073.90071.09771.09771.09221.50242.19192.56343.92664.10724.57974.5797
H63.90003.49384.79214.45821.09771.75761.76742.15322.54653.27324.52904.58785.33575.0379
H73.90003.49384.45824.79211.09771.75761.76742.15322.54653.27324.52904.58785.03795.3357
H82.77542.05223.51333.51331.09221.76741.76742.17843.11042.77044.26914.69414.82124.8212
C92.52812.71143.24513.24511.50242.15322.15322.17841.09081.34162.48032.60803.21123.2112
H103.48843.79044.12124.12122.19192.54652.54653.11041.09082.07782.62842.28303.40253.4025
C111.50882.18532.15622.15622.56343.27323.27322.77041.34162.07781.51022.17022.16432.1643
C122.53733.49762.79762.79763.92664.52904.52904.26912.48032.62841.51021.09351.09831.0983
H133.48774.33743.80093.80094.10724.58784.58784.69412.60802.28302.17021.09351.77351.7735
H142.80883.81692.62163.15634.57975.33575.03794.82123.21123.40252.16431.09831.77351.7579
H152.80883.81693.15632.62164.57975.03795.33574.82123.21123.40252.16431.09831.77351.7579

picture of 2-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C11 C9 124.881 C1 C11 C12 114.379
H2 C1 H3 107.787 H2 C1 H4 107.787
H2 C1 C11 113.413 H3 C1 H4 106.300
H3 C1 C11 110.623 H4 C1 C11 110.623
C5 C9 H10 114.456 C5 C9 C11 128.577
H6 C5 H7 106.368 H6 C5 H8 107.611
H6 C5 C9 110.847 H7 C5 H8 107.611
H7 C5 C9 110.847 H8 C5 C9 113.244
C9 C11 C12 120.740 H10 C9 C11 116.967
C11 C12 H13 111.934 C11 C12 H14 111.153
C11 C12 H15 111.153 H13 C12 H14 108.028
H13 C12 H15 108.028 H14 C12 H15 106.305
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.365      
2 H 0.106      
3 H 0.111      
4 H 0.111      
5 C -0.351      
6 H 0.113      
7 H 0.113      
8 H 0.105      
9 C -0.107      
10 H 0.068      
11 C 0.138      
12 C -0.360      
13 H 0.105      
14 H 0.107      
15 H 0.107      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.185 0.055 0.000 0.193
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.196 -0.306 0.000
y -0.306 -31.842 0.000
z 0.000 0.000 -33.961
Traceless
 xyz
x 0.706 -0.306 0.000
y -0.306 1.236 0.000
z 0.000 0.000 -1.942
Polar
3z2-r2-3.884
x2-y2-0.353
xy-0.306
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.693 -0.854 0.001
y -0.854 8.102 0.001
z 0.001 0.001 5.793


<r2> (average value of r2) Å2
<r2> 151.395
(<r2>)1/2 12.304