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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-195.101096
Energy at 298.15K-195.108618
Nuclear repulsion energy160.070947
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 PBEPBE/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' 3160 3138 13.22      
2 A' 3154 3132 11.13      
3 A' 3078 3057 3.13      
4 A' 3069 3048 10.57      
5 A' 3062 3041 9.12      
6 A' 3054 3033 16.38      
7 A' 2962 2941 18.04      
8 A' 1643 1631 2.51      
9 A' 1609 1598 25.43      
10 A' 1448 1438 6.57      
11 A' 1406 1397 2.87      
12 A' 1383 1373 2.50      
13 A' 1357 1348 8.35      
14 A' 1296 1287 0.91      
15 A' 1279 1270 0.33      
16 A' 1052 1045 3.25      
17 A' 976 969 0.25      
18 A' 936 930 1.32      
19 A' 783 777 0.10      
20 A' 520 516 0.12      
21 A' 413 410 1.47      
22 A' 266 265 0.85      
23 A" 3013 2992 13.35      
24 A" 1427 1418 8.49      
25 A" 1030 1023 0.02      
26 A" 991 984 15.71      
27 A" 892 886 31.94      
28 A" 881 875 42.97      
29 A" 764 759 0.42      
30 A" 623 618 0.02      
31 A" 399 396 8.71      
32 A" 191 190 0.51      
33 A" 162 161 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 24139.5 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 23972.9 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 PBEPBE/cc-pVTZ
ABC
0.28442 0.13883 0.09495

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.592 1.735 0.000
C2 0.000 0.523 0.000
C3 -0.824 -0.686 0.000
C4 -0.369 -1.950 0.000
C5 1.498 0.379 0.000
H6 -1.679 1.832 0.000
H7 -0.010 2.657 0.000
H8 -1.905 -0.514 0.000
H9 0.697 -2.183 0.000
H10 -1.055 -2.796 0.000
H11 1.990 1.359 0.000
H12 1.842 -0.180 0.884
H13 1.842 -0.180 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34832.43133.69112.49121.09141.09072.60424.12414.55442.60913.22053.2205
C21.34831.46282.50041.50482.12872.13382.16932.79453.48322.15832.16072.1607
C32.43131.46281.34352.55402.65873.44021.09482.13402.12333.47812.85352.8535
C43.69112.50041.34352.98444.00214.62082.10241.09081.08984.06352.96652.9665
C52.49121.50482.55402.98443.49352.73223.51822.68414.07421.09681.10081.1008
H61.09142.12872.65874.00213.49351.86182.35704.66504.66983.69934.15054.1505
H71.09072.13383.44024.62082.73221.86183.69444.89145.55252.38433.50163.5016
H82.60422.16931.09482.10243.51822.35703.69443.09092.43494.32213.86433.8643
H94.12412.79452.13401.09082.68414.66504.89143.09091.85623.77072.47052.4705
H104.55443.48322.12331.08984.07424.66985.55252.43491.85625.15164.00234.0023
H112.60912.15833.47814.06351.09683.69932.38434.32213.77075.15161.78101.7810
H123.22052.16072.85352.96651.10084.15053.50163.86432.47054.00231.78101.7675
H133.22052.16072.85352.96651.10084.15053.50163.86432.47054.00231.78101.7675

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 119.680 C1 C2 C5 121.558
C2 C1 H6 121.157 C2 C1 H7 121.707
C2 C3 C4 125.939 C2 C3 H8 115.275
C2 C5 H11 111.144 C2 C5 H12 111.092
C2 C5 H13 111.092 C3 C2 C5 118.762
C3 C4 H9 122.134 C3 C4 H10 121.170
C4 C3 H8 118.786 H6 C1 H7 117.136
H9 C4 H10 116.696 H11 C5 H12 108.278
H11 C5 H13 108.278 H12 C5 H13 106.793
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.270      
2 C 0.102      
3 C -0.064      
4 C -0.264      
5 C -0.280      
6 H 0.094      
7 H 0.096      
8 H 0.089      
9 H 0.099      
10 H 0.110      
11 H 0.090      
12 H 0.100      
13 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.284 0.013 0.000 0.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.872 0.122 0.000
y 0.122 -30.501 0.000
z 0.000 0.000 -35.049
Traceless
 xyz
x 2.904 0.122 0.000
y 0.122 1.959 0.000
z 0.000 0.000 -4.863
Polar
3z2-r2-9.725
x2-y20.630
xy0.122
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.190 -0.727 0.000
y -0.727 13.927 0.000
z 0.000 0.000 5.587


<r2> (average value of r2) Å2
<r2> 132.037
(<r2>)1/2 11.491