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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-195.070799
Energy at 298.15K-195.080930
Nuclear repulsion energy174.771953
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 HF/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 3311 2990 78.40      
2 A 3302 2982 12.69      
3 A 3279 2960 9.97      
4 A 3267 2949 26.38      
5 A 3180 2871 7.96      
6 A 3176 2868 108.21      
7 A 3170 2862 27.34      
8 A 1912 1726 1.67      
9 A 1659 1498 8.81      
10 A 1657 1496 8.44      
11 A 1643 1484 2.36      
12 A 1595 1441 1.72      
13 A 1584 1431 3.87      
14 A 1576 1423 5.80      
15 A 1533 1384 3.89      
16 A 1356 1225 3.92      
17 A 1246 1125 7.82      
18 A 1180 1065 4.46      
19 A 1070 967 1.44      
20 A 1050 948 2.65      
21 A 824 744 1.54      
22 A 575 519 1.83      
23 A 420 380 0.32      
24 A 325 293 0.16      
25 A 3224 2911 91.35      
26 A 3221 2909 21.49      
27 A 3217 2905 3.78      
28 A 1653 1492 23.78      
29 A 1646 1486 0.99      
30 A 1634 1476 1.34      
31 A 1245 1124 0.74      
32 A 1203 1086 2.28      
33 A 1140 1029 3.29      
34 A 945 853 17.30      
35 A 508 459 4.37      
36 A 284 257 2.26      
37 A 190 172 1.05      
38 A 129 116 0.26      
39 A 103 93 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 32114.8 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 28996.4 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 HF/6-31G
ABC
0.26944 0.11731 0.08555

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.509 0.489 0.000
H2 -1.966 -0.489 0.000
H3 -1.871 1.025 0.873
H4 -1.871 1.025 -0.873
C5 0.279 -2.094 0.000
H6 0.660 -2.617 -0.873
H7 0.660 -2.617 0.873
H8 -0.797 -2.200 0.000
C9 0.736 -0.662 0.000
H10 1.808 -0.544 0.000
C11 0.000 0.445 0.000
C12 0.651 1.809 0.000
H13 1.731 1.739 0.000
H14 0.351 2.381 0.873
H15 0.351 2.381 -0.873

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.07961.08671.08673.14103.88733.88732.78162.52263.47341.50912.53093.47272.79322.7932
H21.07961.75021.75022.75933.49073.49072.07222.70743.77382.17653.48244.31673.79073.7907
H31.08671.75021.74563.88764.76654.43543.50973.22614.09392.14482.78183.77522.60363.1349
H41.08671.75021.74563.88764.43544.76653.50973.22614.09392.14482.78183.77523.13492.6036
C53.14102.75933.88763.88761.08641.08641.08071.50312.17712.55453.92044.09924.56064.5606
H63.88733.49074.76654.43541.08641.74511.74872.14202.52483.25184.51084.57005.30375.0081
H73.88733.49074.43544.76651.08641.74511.74872.14202.52483.25184.51084.57005.00815.3037
H82.78162.07223.50973.50971.08071.74871.74872.17133.08632.76264.26224.68074.80324.8032
C92.52262.70743.22613.22611.50312.14202.14202.17131.07801.32972.47232.59943.18993.1899
H103.47343.77384.09394.09392.17712.52482.52483.08631.07802.06072.62182.28463.38313.3831
C111.50912.17652.14482.14482.55453.25183.25182.76261.32972.06071.51092.16152.15302.1530
C122.53093.48242.78182.78183.92044.51084.51084.26222.47232.62181.51091.08261.08671.0867
H133.47274.31673.77523.77524.09924.57004.57004.68072.59942.28462.16151.08261.75541.7554
H142.79323.79072.60363.13494.56065.30375.00814.80323.18993.38312.15301.08671.75541.7466
H152.79323.79073.13492.60364.56065.00815.30374.80323.18993.38312.15301.08671.75541.7466

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 125.274 C1 C11 C12 113.861
H2 C1 H3 107.784 H2 C1 H4 107.784
H2 C1 C11 113.398 H3 C1 H4 106.870
H3 C1 C11 110.373 H4 C1 C11 110.373
C5 C9 H10 114.000 C5 C9 C11 128.672
H6 C5 H7 106.861 H6 C5 H8 107.590
H6 C5 C9 110.590 H7 C5 H8 107.590
H7 C5 C9 110.590 H8 C5 C9 113.345
C9 C11 C12 120.865 H10 C9 C11 117.328
C11 C12 H13 111.839 C11 C12 H14 110.898
C11 C12 H15 110.898 H13 C12 H14 108.031
H13 C12 H15 108.031 H14 C12 H15 106.950
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.484 -0.113    
2 H 0.164 0.054    
3 H 0.161 0.039    
4 H 0.161 0.039    
5 C -0.488 0.171    
6 H 0.161 -0.019    
7 H 0.161 -0.019    
8 H 0.160 -0.020    
9 C -0.196 -0.350    
10 H 0.157 0.140    
11 C 0.049 0.110    
12 C -0.483 -0.271    
13 H 0.162 0.084    
14 H 0.157 0.071    
15 H 0.157 0.084    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.184 0.090 0.000 0.205
CHELPG -0.128 0.201 0.000 0.238
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.653 -0.244 0.000
y -0.244 -32.531 0.000
z 0.000 0.000 -34.949
Traceless
 xyz
x 1.087 -0.244 0.000
y -0.244 1.270 0.000
z 0.000 0.000 -2.357
Polar
3z2-r2-4.713
x2-y2-0.122
xy-0.244
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.091 -1.088 -0.000
y -1.088 7.527 0.000
z -0.000 0.000 5.493


<r2> (average value of r2) Å2
<r2> 150.953
(<r2>)1/2 12.286