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

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-195.310194
Energy at 298.15K-195.317812
HF Energy-195.310194
Nuclear repulsion energy161.061098
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 wB97X-D/cc-pVTZ
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' 3254 3111 11.73      
2 A' 3243 3101 11.49      
3 A' 3175 3035 5.46      
4 A' 3164 3024 11.12      
5 A' 3158 3019 4.49      
6 A' 3149 3011 17.21      
7 A' 3050 2916 19.18      
8 A' 1745 1668 2.04      
9 A' 1693 1618 30.68      
10 A' 1509 1443 6.93      
11 A' 1466 1401 2.52      
12 A' 1445 1381 3.99      
13 A' 1420 1358 8.07      
14 A' 1347 1288 1.15      
15 A' 1344 1285 0.01      
16 A' 1100 1051 4.17      
17 A' 1020 975 0.22      
18 A' 973 930 0.89      
19 A' 801 766 0.17      
20 A' 542 518 0.10      
21 A' 440 421 1.60      
22 A' 284 271 0.98      
23 A" 3108 2971 14.99      
24 A" 1479 1414 8.90      
25 A" 1075 1028 0.22      
26 A" 1030 985 8.46      
27 A" 954 912 58.99      
28 A" 939 898 35.23      
29 A" 798 763 0.78      
30 A" 645 617 0.01      
31 A" 405 387 9.86      
32 A" 163 156 0.30      
33 A" 134 128 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25025.1 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 23924.0 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 wB97X-D/cc-pVTZ
ABC
0.28714 0.14062 0.09607

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.580 1.726 0.000
C2 0.000 0.528 0.000
C3 -0.828 -0.684 0.000
C4 -0.370 -1.931 0.000
C5 1.492 0.366 0.000
H6 -1.658 1.832 0.000
H7 -0.000 2.640 0.000
H8 -1.900 -0.514 0.000
H9 0.688 -2.159 0.000
H10 -1.048 -2.773 0.000
H11 1.989 1.334 0.000
H12 1.822 -0.191 0.879
H13 1.822 -0.191 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.33162.42323.66342.47951.08301.08242.60014.08744.52382.59893.19683.1968
C21.33161.46782.48661.50122.10962.11242.16682.77393.46362.14592.14682.1468
C32.42321.46781.32822.54672.64973.42591.08532.11532.10063.46502.83502.8350
C43.66342.48661.32822.95693.97744.58612.08511.08271.08154.02792.93352.9335
C52.47951.50122.54672.95693.47512.72073.50442.64984.03841.08811.09151.0915
H61.08302.10962.64973.97743.47511.84422.35864.63004.64543.68074.12024.1202
H71.08242.11243.42594.58612.72071.84423.68214.84865.51392.37973.47983.4798
H82.60012.16681.08532.08513.50442.35863.68213.06672.41404.30533.83773.8377
H94.08742.77392.11531.08272.64984.63004.84863.06671.84233.72742.43562.4356
H104.52383.46362.10061.08154.03844.64545.51392.41401.84235.10833.95993.9599
H112.59892.14593.46504.02791.08813.68072.37974.30533.72745.10831.76811.7681
H123.19682.14682.83502.93351.09154.12023.47983.83772.43563.95991.76811.7585
H133.19682.14682.83502.93351.09154.12023.47983.83772.43563.95991.76811.7585

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 119.829 C1 C2 C5 122.043
C2 C1 H6 121.442 C2 C1 H7 121.762
C2 C3 C4 125.505 C2 C3 H8 115.317
C2 C5 H11 110.933 C2 C5 H12 110.804
C2 C5 H13 110.804 C3 C2 C5 118.128
C3 C4 H9 122.331 C3 C4 H10 120.976
C4 C3 H8 119.178 H6 C1 H7 116.796
H9 C4 H10 116.693 H11 C5 H12 108.426
H11 C5 H13 108.426 H12 C5 H13 107.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.328      
2 C 0.108      
3 C -0.065      
4 C -0.312      
5 C -0.272      
6 H 0.111      
7 H 0.112      
8 H 0.121      
9 H 0.121      
10 H 0.117      
11 H 0.093      
12 H 0.097      
13 H 0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.266 -0.019 0.000 0.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.439 0.090 0.000
y 0.090 -29.998 0.000
z 0.000 0.000 -34.869
Traceless
 xyz
x 2.995 0.090 0.000
y 0.090 2.156 0.000
z 0.000 0.000 -5.151
Polar
3z2-r2-10.302
x2-y20.559
xy0.090
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.709 -0.933 0.000
y -0.933 13.263 0.000
z 0.000 0.000 5.480


<r2> (average value of r2) Å2
<r2> 130.441
(<r2>)1/2 11.421