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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-196.335361
Energy at 298.15K-196.327391
Nuclear repulsion energy 
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 3148 3023 53.92      
2 A 3139 3014 31.86      
3 A 3125 3001 5.03      
4 A 3120 2996 17.43      
5 A 3032 2912 7.13      
6 A 3029 2909 84.13      
7 A 3022 2902 25.84      
8 A 1761 1691 0.87      
9 A 1530 1469 9.64      
10 A 1529 1468 0.98      
11 A 1513 1453 1.24      
12 A 1454 1396 0.61      
13 A 1443 1386 0.29      
14 A 1440 1383 4.35      
15 A 1394 1338 4.58      
16 A 1248 1198 4.90      
17 A 1144 1098 9.32      
18 A 1081 1038 5.98      
19 A 981 942 1.63      
20 A 970 932 1.96      
21 A 776 745 1.64      
22 A 527 506 2.14      
23 A 384 369 0.38      
24 A 302 290 0.23      
25 A 3071 2949 39.67      
26 A 3070 2948 36.22      
27 A 3064 2943 13.26      
28 A 1521 1460 15.93      
29 A 1514 1454 1.35      
30 A 1502 1443 0.75      
31 A 1120 1075 0.47      
32 A 1075 1032 0.64      
33 A 1032 991 1.87      
34 A 838 804 10.56      
35 A 454 436 1.89      
36 A 264 254 1.32      
37 A 187 180 1.10      
38 A 154 148 0.05      
39 A 127 122 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 30041.0 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 28848.4 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
0.26714 0.11655 0.08497

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 -1.509 0.496 0.000
H2 -1.973 -0.493 0.000
H3 -1.880 1.041 0.880
H4 -1.880 1.041 -0.880
C5 0.268 -2.100 0.000
H6 0.650 -2.636 -0.880
H7 0.650 -2.636 0.880
H8 -0.821 -2.198 0.000
C9 0.735 -0.671 0.000
H10 1.820 -0.553 0.000
C11 0.000 0.451 0.000
C12 0.664 1.808 0.000
H13 1.756 1.730 0.000
H14 0.366 2.396 0.880
H15 0.366 2.396 -0.880

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.09241.09921.09923.14583.90453.90452.78052.52943.49041.50932.53793.48942.81032.8103
H21.09241.77021.77022.75733.49933.49932.05762.71373.79332.18683.49934.34023.81953.8195
H31.09921.77021.75913.90534.79754.46323.51913.24734.12402.15792.79903.80352.62333.1587
H41.09921.77021.75913.90534.46324.79753.51913.24734.12402.15792.79903.80353.15872.6233
C53.14582.75733.90533.90531.09891.09891.09331.50322.19152.56513.92834.10834.58264.5826
H63.90453.49934.79754.46321.09891.75961.76912.15452.54613.27534.53074.58865.33885.0405
H73.90453.49934.46324.79751.09891.75961.76912.15452.54613.27534.53074.58865.04055.3388
H82.78052.05763.51913.51911.09331.76911.76912.18003.11162.77344.27264.69724.82604.8260
C92.52942.71373.24733.24731.50322.15452.15452.18001.09151.34172.48062.60863.21263.2126
H103.49043.79334.12404.12402.19152.54612.54613.11161.09152.07892.62942.28353.40433.4043
C111.50932.18682.15792.15792.56513.27533.27532.77341.34172.07891.51082.17172.16612.1661
C122.53793.49932.79902.79903.92834.53074.53074.27262.48062.62941.51081.09471.09941.0994
H133.48944.34023.80353.80354.10834.58864.58864.69722.60862.28352.17171.09471.77501.7750
H142.81033.81952.62333.15874.58265.33885.04054.82603.21263.40432.16611.09941.77501.7597
H152.81033.81953.15872.62334.58265.04055.33884.82603.21263.40432.16611.09941.77501.7597

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 124.938 C1 C11 C12 114.347
H2 C1 H3 107.752 H2 C1 H4 107.752
H2 C1 C11 113.420 H3 C1 H4 106.300
H3 C1 C11 110.653 H4 C1 C11 110.653
C5 C9 H10 114.329 C5 C9 C11 128.661
H6 C5 H7 106.386 H6 C5 H8 107.610
H6 C5 C9 110.833 H7 C5 H8 107.610
H7 C5 C9 110.833 H8 C5 C9 113.257
C9 C11 C12 120.716 H10 C9 C11 117.011
C11 C12 H13 111.930 C11 C12 H14 111.184
C11 C12 H15 111.184 H13 C12 H14 107.994
H13 C12 H15 107.994 H14 C12 H15 106.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.512 -0.159   -0.280
2 H 0.152 0.059   0.086
3 H 0.151 0.050   0.084
4 H 0.151 0.050   0.084
5 C -0.487 0.092   -0.187
6 H 0.153 -0.001   0.070
7 H 0.153 -0.001   0.070
8 H 0.151 -0.004   0.072
9 C -0.154 -0.284   -0.225
10 H 0.111 0.115   0.121
11 C 0.194 0.131   0.205
12 C -0.505 -0.291   -0.515
13 H 0.150 0.087   0.124
14 H 0.148 0.071   0.145
15 H 0.148 0.087   0.145


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.170 0.048 0.000 0.177
CHELPG -0.083 0.194 0.000 0.211
AIM        
ESP -0.223 0.053 0.000 0.230


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 151.586
(<r2>)1/2 12.312