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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-195.283660
Energy at 298.15K-195.291350
Nuclear repulsion energy159.022044
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 B3LYP/SDD
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' 3268 3142 30.50      
2 A' 3260 3133 20.39      
3 A' 3172 3050 5.43      
4 A' 3159 3037 17.45      
5 A' 3156 3034 5.24      
6 A' 3145 3024 27.99      
7 A' 3036 2918 24.72      
8 A' 1702 1636 2.32      
9 A' 1658 1594 36.81      
10 A' 1529 1470 10.59      
11 A' 1484 1426 3.02      
12 A' 1455 1398 4.40      
13 A' 1443 1387 18.02      
14 A' 1356 1303 1.63      
15 A' 1334 1282 1.48      
16 A' 1102 1060 9.65      
17 A' 1027 987 1.17      
18 A' 977 940 0.75      
19 A' 792 761 0.42      
20 A' 538 517 0.51      
21 A' 429 412 0.77      
22 A' 280 269 0.86      
23 A" 3108 2987 29.77      
24 A" 1512 1453 14.17      
25 A" 1089 1047 9.17      
26 A" 1046 1006 29.27      
27 A" 995 956 82.92      
28 A" 980 942 71.03      
29 A" 794 764 0.87      
30 A" 653 628 0.05      
31 A" 421 405 12.48      
32 A" 193 185 0.97      
33 A" 167 160 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25129.0 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 24156.5 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 B3LYP/SDD
ABC
0.28039 0.13647 0.09340

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.600 1.748 0.000
C2 0.000 0.529 0.000
C3 -0.830 -0.694 0.000
C4 -0.369 -1.969 0.000
C5 1.511 0.385 0.000
H6 -1.685 1.848 0.000
H7 -0.027 2.672 0.000
H8 -1.909 -0.527 0.000
H9 0.693 -2.202 0.000
H10 -1.051 -2.816 0.000
H11 2.000 1.365 0.000
H12 1.854 -0.169 0.885
H13 1.854 -0.169 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35862.45293.72392.51281.08881.08742.62404.15674.58582.62863.23743.2374
C21.35861.47832.52501.51772.13952.14302.18132.81813.50612.16782.16962.1696
C32.45291.47831.35532.57772.68223.46061.09192.14342.13303.50002.87442.8744
C43.72392.52501.35533.01254.03734.65332.10971.08761.08724.08992.99402.9940
C52.51281.51772.57773.01253.51432.75583.53912.71384.09971.09521.09881.0988
H61.08882.13952.68224.03733.51431.85082.38534.69684.70683.71624.16804.1680
H71.08742.14303.46064.65332.75581.85083.71104.92735.58242.41213.52023.5202
H82.62402.18131.09192.10973.53912.38533.71103.09502.44484.34263.88203.8820
H94.15672.81812.14341.08762.71384.69684.92733.09501.84853.79932.50312.5031
H104.58583.50612.13301.08724.09974.70685.58242.44481.84855.17564.02814.0281
H112.62862.16783.50004.08991.09523.71622.41214.34263.79935.17561.77671.7767
H123.23742.16962.87442.99401.09884.16803.52023.88202.50314.02811.77671.7692
H133.23742.16962.87442.99401.09884.16803.52023.88202.50314.02811.77671.7692

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 119.621 C1 C2 C5 121.666
C2 C1 H6 121.510 C2 C1 H7 121.963
C2 C3 C4 125.966 C2 C3 H8 115.320
C2 C5 H11 111.099 C2 C5 H12 111.024
C2 C5 H13 111.024 C3 C2 C5 118.712
C3 C4 H9 122.285 C3 C4 H10 121.294
C4 C3 H8 118.713 H6 C1 H7 116.528
H9 C4 H10 116.421 H11 C5 H12 108.156
H11 C5 H13 108.156 H12 C5 H13 107.231
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.700      
2 C 0.511      
3 C -0.176      
4 C -0.552      
5 C -0.752      
6 H 0.210      
7 H 0.211      
8 H 0.206      
9 H 0.211      
10 H 0.200      
11 H 0.209      
12 H 0.211      
13 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.295 -0.036 0.000 0.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.774 0.065 0.000
y 0.065 -29.779 0.000
z 0.000 0.000 -35.278
Traceless
 xyz
x 3.754 0.065 0.000
y 0.065 2.247 0.000
z 0.000 0.000 -6.002
Polar
3z2-r2-12.003
x2-y21.005
xy0.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.425 -1.111 0.000
y -1.111 12.854 0.000
z 0.000 0.000 4.116


<r2> (average value of r2) Å2
<r2> 133.431
(<r2>)1/2 11.551