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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-195.337809
Energy at 298.15K-195.344888
Nuclear repulsion energy157.197026
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3120 3015 21.95      
2 A1 3103 2998 16.05      
3 A1 3018 2916 71.43      
4 A1 2059 1990 26.32      
5 A1 1530 1478 0.20      
6 A1 1484 1434 5.44      
7 A1 1429 1381 0.99      
8 A1 1321 1277 18.46      
9 A1 1032 997 5.88      
10 A1 735 710 0.03      
11 A1 343 331 0.12      
12 A2 3057 2954 0.00      
13 A2 1492 1442 0.00      
14 A2 1012 978 0.00      
15 A2 616 596 0.00      
16 A2 158 152 0.00      
17 B1 3169 3062 10.27      
18 B1 3059 2956 64.08      
19 B1 1510 1459 18.43      
20 B1 1106 1068 0.08      
21 B1 1035 1000 0.23      
22 B1 460 445 0.41      
23 B1 260 251 5.40      
24 B1 177 171 1.32      
25 B2 3119 3014 23.83      
26 B2 3013 2911 20.75      
27 B2 1500 1450 8.07      
28 B2 1413 1365 4.88      
29 B2 1209 1168 5.56      
30 B2 973 940 0.02      
31 B2 865 836 52.39      
32 B2 607 587 10.66      
33 B2 185 179 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 24582.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 23754.2 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/6-311G*
ABC
0.27510 0.12073 0.08816

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.237
C2 0.000 0.000 0.932
H3 -0.925 0.000 2.809
H4 0.925 0.000 2.809
C5 0.000 0.000 -0.375
C6 0.000 1.287 -1.171
C7 0.000 -1.287 -1.171
H8 0.000 2.165 -0.524
H9 0.000 -2.165 -0.524
H10 0.880 1.340 -1.822
H11 -0.880 1.340 -1.822
H12 -0.880 -1.340 -1.822
H13 0.880 -1.340 -1.822

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.30471.08771.08772.61163.64263.64263.50823.50824.36374.36374.36374.3637
C21.30472.09272.09271.30692.46552.46552.60882.60883.18663.18663.18663.1866
H31.08772.09271.84973.31584.28414.28414.08074.08075.14794.82124.82125.1479
H41.08772.09271.84973.31584.28414.28414.08074.08074.82125.14795.14794.8212
C52.61161.30693.31583.31581.51321.51322.16972.16972.15972.15972.15972.1597
C63.64262.46554.28414.28411.51322.57381.09033.51161.09611.09612.84602.8460
C73.64262.46554.28414.28411.51322.57383.51161.09032.84602.84601.09611.0961
H83.50822.60884.08074.08072.16971.09033.51164.32921.77171.77173.83953.8395
H93.50822.60884.08074.08072.16973.51161.09034.32923.83953.83951.77171.7717
H104.36373.18665.14794.82122.15971.09612.84601.77173.83951.76063.20672.6801
H114.36373.18664.82125.14792.15971.09612.84601.77173.83951.76062.68013.2067
H124.36373.18664.82125.14792.15972.84601.09613.83951.77173.20672.68011.7606
H134.36373.18665.14794.82122.15972.84601.09613.83951.77172.68013.20671.7606

picture of 1,2-Butadiene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 180.000 C2 C1 H3 121.761
C2 C1 H4 121.761 C2 C5 C6 121.739
C2 C5 C7 121.739 H3 C1 H4 116.478
C5 C6 H8 111.869 C5 C6 H10 110.708
C5 C6 H11 110.708 C5 C7 H9 111.869
C5 C7 H12 110.708 C5 C7 H13 110.708
C6 C5 C7 116.521 H8 C6 H10 108.257
H8 C6 H11 108.257 H9 C7 H12 108.257
H9 C7 H13 108.257 H10 C6 H11 106.863
H12 C7 H13 106.863
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.539     -0.477
2 C 0.111     -0.029
3 H 0.216     0.193
4 H 0.216     0.193
5 C -0.014     0.299
6 C -0.643     -0.552
7 C -0.643     -0.552
8 H 0.222     0.153
9 H 0.222     0.153
10 H 0.213     0.156
11 H 0.213     0.154
12 H 0.213     0.154
13 H 0.213     0.156


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.552 0.552
CHELPG        
AIM        
ESP 0.017 0.000 -0.569 0.569


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.163 0.000 0.000
y 0.000 -32.737 0.000
z 0.000 0.000 -29.795
Traceless
 xyz
x -0.897 0.000 0.000
y 0.000 -1.758 0.000
z 0.000 0.000 2.655
Polar
3z2-r25.310
x2-y20.574
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.931 0.000 0.000
y 0.000 6.961 0.000
z 0.000 0.000 13.415


<r2> (average value of r2) Å2
<r2> 143.088
(<r2>)1/2 11.962