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All results from a given calculation for C5H8 (1,3-Butadiene, 2-methyl-)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-195.028711
Energy at 298.15K-195.036209
HF Energy-195.028711
Nuclear repulsion energy159.437473
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 PBEPBEultrafine/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' 3184 3131 16.06      
2 A' 3176 3124 13.36      
3 A' 3104 3052 3.64      
4 A' 3093 3042 9.06      
5 A' 3081 3031 13.08      
6 A' 3077 3026 17.02      
7 A' 2978 2929 18.29      
8 A' 1668 1640 2.11      
9 A' 1632 1605 17.10      
10 A' 1482 1457 6.70      
11 A' 1434 1410 1.40      
12 A' 1407 1383 2.34      
13 A' 1386 1363 6.49      
14 A' 1311 1290 1.19      
15 A' 1297 1275 0.28      
16 A' 1065 1047 4.30      
17 A' 986 970 0.30      
18 A' 948 932 0.78      
19 A' 789 776 0.11      
20 A' 521 512 0.24      
21 A' 412 405 1.35      
22 A' 272 267 0.80      
23 A" 3035 2985 16.80      
24 A" 1461 1437 7.99      
25 A" 1048 1031 0.58      
26 A" 995 979 16.24      
27 A" 878 864 6.63      
28 A" 873 859 74.00      
29 A" 764 752 0.31      
30 A" 621 611 0.01      
31 A" 395 389 6.21      
32 A" 201 198 0.52      
33 A" 166 164 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 24368.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 23966.2 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 PBEPBEultrafine/6-31G*
ABC
0.28238 0.13770 0.09420

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.591 1.744 0.000
C2 0.000 0.525 0.000
C3 -0.828 -0.686 0.000
C4 -0.373 -1.957 0.000
C5 1.503 0.377 0.000
H6 -1.681 1.850 0.000
H7 -0.005 2.668 0.000
H8 -1.913 -0.513 0.000
H9 0.696 -2.196 0.000
H10 -1.062 -2.807 0.000
H11 2.002 1.358 0.000
H12 1.849 -0.185 0.887
H13 1.849 -0.185 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35442.44123.70702.50071.09551.09462.61544.14404.57452.62193.23393.2339
C21.35441.46692.50971.51032.14072.14362.17652.80813.49662.16902.16982.1698
C32.44121.46691.35002.56182.67573.45391.09872.14492.13343.49152.86382.8638
C43.70702.50971.35002.99414.02554.64002.11111.09491.09394.07842.97682.9768
C52.50071.51032.56182.99413.50862.74373.52992.69604.08801.10141.10531.1053
H61.09552.14072.67574.02553.50861.86512.37444.69224.69753.71654.16994.1699
H71.09462.14363.45394.64002.74371.86513.70964.91445.57612.39763.51673.5167
H82.61542.17651.09872.11113.52992.37443.70963.10422.44634.33973.87863.8786
H94.14402.80812.14491.09492.69604.69224.91443.10421.86083.78652.48162.4816
H104.57453.49662.13341.09394.08804.69755.57612.44631.86085.17074.01624.0162
H112.62192.16903.49154.07841.10143.71652.39764.33973.78655.17071.78671.7867
H123.23392.16982.86382.97681.10534.16993.51673.87862.48164.01621.78671.7741
H133.23392.16982.86382.97681.10534.16993.51673.87862.48164.01621.78671.7741

picture of 1,3-Butadiene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.768 C1 C2 C5 121.504
C2 C1 H6 121.441 C2 C1 H7 121.795
C2 C3 C4 125.937 C2 C3 H8 115.305
C2 C5 H11 111.336 C2 C5 H12 111.160
C2 C5 H13 111.160 C3 C2 C5 118.729
C3 C4 H9 122.291 C3 C4 H10 121.254
C4 C3 H8 118.758 H6 C1 H7 116.764
H9 C4 H10 116.455 H11 C5 H12 108.129
H11 C5 H13 108.129 H12 C5 H13 106.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.424      
2 C 0.234      
3 C -0.109      
4 C -0.372      
5 C -0.575      
6 H 0.149      
7 H 0.147      
8 H 0.132      
9 H 0.148      
10 H 0.152      
11 H 0.167      
12 H 0.175      
13 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.262 -0.007 0.000 0.263
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.142 0.106 0.006
y 0.106 -29.696 -0.001
z 0.006 -0.001 -34.256
Traceless
 xyz
x 2.834 0.106 0.006
y 0.106 2.003 -0.001
z 0.006 -0.001 -4.837
Polar
3z2-r2-9.675
x2-y20.554
xy0.106
xz0.006
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.069 -0.729 0.003
y -0.729 12.757 -0.001
z 0.003 -0.001 3.833


<r2> (average value of r2) Å2
<r2> 132.459
(<r2>)1/2 11.509