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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-195.250230
Energy at 298.15K-195.257809
HF Energy-195.250230
Nuclear repulsion energy160.256390
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 B97D3/6-311+G(3df,2p)
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' 3172 3130 16.93      
2 A' 3164 3123 14.41      
3 A' 3092 3052 4.98      
4 A' 3081 3041 15.46      
5 A' 3074 3034 9.85      
6 A' 3062 3022 21.09      
7 A' 2970 2931 24.00      
8 A' 1645 1624 3.07      
9 A' 1612 1591 29.75      
10 A' 1476 1456 6.38      
11 A' 1430 1411 2.04      
12 A' 1400 1382 0.81      
13 A' 1381 1363 4.89      
14 A' 1305 1288 1.72      
15 A' 1300 1283 0.18      
16 A' 1069 1055 2.40      
17 A' 995 982 0.21      
18 A' 945 932 1.35      
19 A' 781 771 0.15      
20 A' 528 521 0.04      
21 A' 425 420 1.49      
22 A' 282 279 0.94      
23 A" 3020 2981 17.30      
24 A" 1455 1436 7.92      
25 A" 1044 1030 0.31      
26 A" 999 986 16.11      
27 A" 900 888 35.20      
28 A" 888 877 43.54      
29 A" 766 756 0.38      
30 A" 625 617 0.06      
31 A" 398 393 9.95      
32 A" 201 198 0.41      
33 A" 157 155 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 24319.1 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 24002.9 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 B97D3/6-311+G(3df,2p)
ABC
0.28490 0.13901 0.09508

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.587 1.735 0.000
C2 0.000 0.523 0.000
C3 -0.825 -0.684 0.000
C4 -0.373 -1.948 0.000
C5 1.499 0.375 0.000
H6 -1.669 1.838 0.000
H7 -0.005 2.652 0.000
H8 -1.902 -0.513 0.000
H9 0.687 -2.184 0.000
H10 -1.059 -2.789 0.000
H11 1.992 1.350 0.000
H12 1.838 -0.183 0.881
H13 1.838 -0.183 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34672.43083.68902.49051.08711.08632.60454.12154.54902.60743.21503.2150
C21.34671.46232.49881.50632.12502.12902.16612.79343.47762.15632.15702.1570
C32.43081.46231.34232.55402.65953.43561.09042.13052.11823.47442.84962.8496
C43.68902.49881.34232.98274.00164.61462.09701.08611.08574.05752.96272.9627
C52.49051.50632.55402.98273.48992.72923.51502.68464.06841.09251.09641.0964
H61.08712.12502.65954.00163.48991.85302.36254.66194.66753.69334.14264.1426
H71.08632.12903.43564.61462.72921.85303.69034.88585.54262.38373.49423.4942
H82.60452.16611.09042.09703.51502.36253.69033.08202.42774.31643.85663.8566
H94.12152.79342.13051.08612.68464.66194.88583.08201.84773.76712.47112.4711
H104.54903.47762.11821.08574.06844.66755.54262.42771.84775.14163.99503.9950
H112.60742.15633.47444.05751.09253.69332.38374.31643.76715.14161.77461.7746
H123.21502.15702.84962.96271.09644.14263.49423.85662.47113.99501.77461.7623
H133.21502.15702.84962.96271.09644.14263.49423.85662.47113.99501.77461.7623

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 119.909 C1 C2 C5 121.922
C2 C1 H6 121.512 C2 C1 H7 121.897
C2 C3 C4 125.880 C2 C3 H8 114.976
C2 C5 H11 110.982 C2 C5 H12 110.912
C2 C5 H13 110.912 C3 C2 C5 118.169
C3 C4 H9 122.511 C3 C4 H10 121.171
C4 C3 H8 119.145 H6 C1 H7 116.591
H9 C4 H10 116.319 H11 C5 H12 108.380
H11 C5 H13 108.380 H12 C5 H13 107.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.576      
2 C 0.685      
3 C 0.004      
4 C -0.435      
5 C -0.633      
6 H 0.116      
7 H 0.112      
8 H 0.092      
9 H 0.122      
10 H 0.126      
11 H 0.098      
12 H 0.144      
13 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.306 0.016 0.000 0.307
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.962 0.070 0.000
y 0.070 -30.644 0.000
z 0.000 0.000 -35.272
Traceless
 xyz
x 2.996 0.070 0.000
y 0.070 1.973 0.000
z 0.000 0.000 -4.969
Polar
3z2-r2-9.939
x2-y20.682
xy0.070
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.534 -0.711 0.000
y -0.711 14.550 0.000
z 0.000 0.000 6.951


<r2> (average value of r2) Å2
<r2> 131.936
(<r2>)1/2 11.486