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

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-195.331793
Energy at 298.15K-195.339431
Nuclear repulsion energy159.932271
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 B3LYPultrafine/6-31+G**
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' 3245 3124 15.33      
2 A' 3237 3116 13.70      
3 A' 3164 3046 3.19      
4 A' 3153 3036 14.16      
5 A' 3148 3031 7.90      
6 A' 3126 3010 19.41      
7 A' 3034 2921 22.66      
8 A' 1702 1638 3.08      
9 A' 1662 1600 31.71      
10 A' 1507 1451 7.79      
11 A' 1464 1410 2.04      
12 A' 1436 1382 1.32      
13 A' 1416 1363 6.33      
14 A' 1332 1283 1.47      
15 A' 1328 1278 0.32      
16 A' 1090 1050 3.71      
17 A' 1012 974 0.21      
18 A' 964 928 0.91      
19 A' 793 764 0.19      
20 A' 535 515 0.12      
21 A' 427 411 1.47      
22 A' 280 269 0.95      
23 A" 3087 2972 16.97      
24 A" 1486 1431 9.30      
25 A" 1069 1029 0.06      
26 A" 1024 986 18.61      
27 A" 931 896 39.92      
28 A" 922 887 57.15      
29 A" 780 751 0.58      
30 A" 640 617 0.10      
31 A" 407 391 11.65      
32 A" 201 193 0.48      
33 A" 161 155 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 24880.4 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 23952.3 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 B3LYPultrafine/6-31+G**
ABC
0.28350 0.13822 0.09455

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.595 1.734 0.000
C2 0.000 0.526 0.000
C3 -0.824 -0.691 0.000
C4 -0.371 -1.955 0.000
C5 1.503 0.385 0.000
H6 -1.678 1.832 0.000
H7 -0.019 2.655 0.000
H8 -1.901 -0.523 0.000
H9 0.689 -2.194 0.000
H10 -1.057 -2.795 0.000
H11 1.990 1.364 0.000
H12 1.848 -0.168 0.882
H13 1.848 -0.168 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34722.43593.69612.49491.08671.08592.60784.13274.55312.61153.21993.2199
C21.34721.46952.50831.50992.12642.12912.17102.80553.48542.15902.16232.1623
C32.43591.46951.34312.56412.66373.44111.08962.13262.11743.48422.86242.8624
C43.69612.50831.34312.99794.00664.62322.09561.08591.08544.07252.98252.9825
C52.49491.50992.56412.99793.49472.73313.52322.70464.08321.09291.09661.0966
H61.08672.12642.66374.00663.49471.85102.36624.67024.66903.69724.14874.1487
H71.08592.12913.44114.62322.73311.85103.69324.90015.54812.38813.49763.4976
H82.60782.17101.08962.09563.52322.36623.69323.08172.42354.32403.86783.8678
H94.13272.80552.13261.08592.70464.67024.90013.08171.84703.78812.49542.4954
H104.55313.48542.11741.08544.08324.66905.54812.42351.84705.15594.01564.0156
H112.61152.15903.48424.07251.09293.69722.38814.32403.78815.15591.77311.7731
H123.21992.16232.86242.98251.09664.14873.49763.86782.49544.01561.77311.7637
H133.21992.16232.86242.98251.09664.14873.49763.86782.49544.01561.77311.7637

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 119.659 C1 C2 C5 121.571
C2 C1 H6 121.407 C2 C1 H7 121.739
C2 C3 C4 126.147 C2 C3 H8 115.267
C2 C5 H11 111.083 C2 C5 H12 111.117
C2 C5 H13 111.117 C3 C2 C5 118.769
C3 C4 H9 122.446 C3 C4 H10 120.992
C4 C3 H8 118.587 H6 C1 H7 116.854
H9 C4 H10 116.562 H11 C5 H12 108.152
H11 C5 H13 108.152 H12 C5 H13 107.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.478      
2 C 0.497      
3 C -0.023      
4 C -0.349      
5 C -0.773      
6 H 0.131      
7 H 0.131      
8 H 0.119      
9 H 0.132      
10 H 0.136      
11 H 0.150      
12 H 0.163      
13 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.301 0.006 0.000 0.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.015 0.080 0.007
y 0.080 -30.805 -0.001
z 0.007 -0.001 -35.811
Traceless
 xyz
x 3.293 0.080 0.007
y 0.080 2.109 -0.001
z 0.007 -0.001 -5.401
Polar
3z2-r2-10.803
x2-y20.790
xy0.080
xz0.007
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.641 -1.054 0.001
y -1.054 14.088 -0.001
z 0.001 -0.001 6.260


<r2> (average value of r2) Å2
<r2> 132.684
(<r2>)1/2 11.519