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

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-194.035018
Energy at 298.15K-194.043027
HF Energy-194.035018
Nuclear repulsion energy161.366637
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3375 3059 17.40      
2 A' 3365 3050 14.77      
3 A' 3306 2996 6.05      
4 A' 3292 2984 14.39      
5 A' 3286 2978 3.80      
6 A' 3247 2943 25.02      
7 A' 3165 2868 26.24      
8 A' 1855 1681 1.76      
9 A' 1794 1626 42.46      
10 A' 1622 1470 6.38      
11 A' 1581 1433 1.52      
12 A' 1552 1406 2.74      
13 A' 1531 1388 2.75      
14 A' 1433 1299 0.65      
15 A' 1430 1296 0.84      
16 A' 1179 1069 4.21      
17 A' 1094 991 0.09      
18 A' 1031 934 0.48      
19 A' 829 751 0.35      
20 A' 570 516 0.01      
21 A' 459 416 2.11      
22 A' 299 271 1.40      
23 A" 3211 2911 24.61      
24 A" 1601 1451 7.55      
25 A" 1166 1057 0.00      
26 A" 1134 1028 12.99      
27 A" 1066 967 63.54      
28 A" 1053 954 42.03      
29 A" 859 779 0.63      
30 A" 707 641 0.20      
31 A" 443 402 12.01      
32 A" 231 209 0.22      
33 A" 158 144 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 26459.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 23983.0 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 HF/Def2TZVPP
ABC
0.28724 0.14059 0.09605

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.594 1.708 0.000
C2 0.000 0.527 0.000
C3 -0.821 -0.696 0.000
C4 -0.367 -1.935 0.000
C5 1.498 0.393 0.000
H6 -1.664 1.798 0.000
H7 -0.032 2.623 0.000
H8 -1.884 -0.536 0.000
H9 0.680 -2.168 0.000
H10 -1.044 -2.768 0.000
H11 1.970 1.366 0.000
H12 1.838 -0.150 0.874
H13 1.838 -0.150 -0.874

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32182.41543.65032.47051.07401.07332.58894.08044.49862.58603.18283.1828
C21.32181.47332.48951.50392.09372.09582.16352.77993.45642.14072.14512.1451
C32.41541.47331.31892.56182.63343.41171.07562.10182.08333.46952.85142.8514
C43.65032.48951.31892.98343.95214.57022.06351.07291.07304.04432.96872.9687
C52.47051.50392.56182.98343.45982.70383.50752.68904.05641.08071.08411.0841
H61.07402.09372.63343.95213.45981.82852.34474.60734.60793.65914.10164.1016
H71.07332.09583.41174.57022.70381.82853.66194.84365.48482.36353.45683.4568
H82.58892.16351.07562.06353.50752.34473.66193.03952.38464.29753.84283.8428
H94.08042.77992.10181.07292.68904.60734.84363.03951.82533.76192.48552.4855
H104.49863.45642.08331.07304.05644.60795.48482.38461.82535.11543.99023.9902
H112.58602.14073.46954.04431.08073.65912.36354.29753.76195.11541.75491.7549
H123.18282.14512.85142.96871.08414.10163.45683.84282.48553.99021.75491.7485
H133.18282.14512.85142.96871.08414.10163.45683.84282.48553.99021.75491.7485

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 119.473 C1 C2 C5 121.792
C2 C1 H6 121.493 C2 C1 H7 121.753
C2 C3 C4 126.059 C2 C3 H8 115.266
C2 C5 H11 110.771 C2 C5 H12 110.916
C2 C5 H13 110.916 C3 C2 C5 118.734
C3 C4 H9 122.651 C3 C4 H10 120.799
C4 C3 H8 118.676 H6 C1 H7 116.754
H9 C4 H10 116.550 H11 C5 H12 108.312
H11 C5 H13 108.312 H12 C5 H13 107.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.113      
2 C 0.008      
3 C -0.109      
4 C -0.143      
5 C -0.165      
6 H 0.058      
7 H 0.060      
8 H 0.066      
9 H 0.058      
10 H 0.076      
11 H 0.068      
12 H 0.068      
13 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.259 -0.030 0.000 0.261
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.827 -0.005 0.000
y -0.005 -30.309 0.000
z 0.000 0.000 -35.673
Traceless
 xyz
x 3.163 -0.005 0.000
y -0.005 2.441 0.000
z 0.000 0.000 -5.604
Polar
3z2-r2-11.209
x2-y20.482
xy-0.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.390 -1.249 0.000
y -1.249 13.293 0.000
z 0.000 0.000 5.995


<r2> (average value of r2) Å2
<r2> 130.698
(<r2>)1/2 11.432