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

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-195.181977
Energy at 298.15K-195.188905
HF Energy-195.181977
Nuclear repulsion energy156.331452
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 B97D3/6-31+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 A1 3089 3035 20.74      
2 A1 3067 3014 18.03      
3 A1 2972 2921 81.02      
4 A1 2011 1977 28.30      
5 A1 1487 1462 0.32      
6 A1 1445 1420 5.26      
7 A1 1386 1363 1.88      
8 A1 1290 1268 20.50      
9 A1 1008 991 5.42      
10 A1 722 710 0.02      
11 A1 339 333 0.13      
12 A2 3025 2973 0.00      
13 A2 1450 1425 0.00      
14 A2 982 965 0.00      
15 A2 595 584 0.00      
16 A2 150 148 0.00      
17 B1 3136 3082 8.24      
18 B1 3026 2974 54.47      
19 B1 1468 1442 17.02      
20 B1 1071 1053 0.05      
21 B1 1001 984 0.37      
22 B1 443 435 0.48      
23 B1 253 248 6.60      
24 B1 169 166 1.97      
25 B2 3088 3034 24.08      
26 B2 2967 2916 28.16      
27 B2 1457 1432 7.44      
28 B2 1370 1346 3.13      
29 B2 1180 1159 7.20      
30 B2 948 932 0.01      
31 B2 831 817 58.27      
32 B2 589 579 11.12      
33 B2 175 172 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 24093.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 23679.3 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 B97D3/6-31+G**
ABC
0.27383 0.11892 0.08712

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.255
C2 0.000 0.000 0.939
H3 -0.931 0.000 2.829
H4 0.931 0.000 2.829
C5 0.000 0.000 -0.380
C6 0.000 1.290 -1.180
C7 0.000 -1.290 -1.180
H8 0.000 2.171 -0.528
H9 0.000 -2.171 -0.528
H10 0.886 1.336 -1.832
H11 -0.886 1.336 -1.832
H12 -0.886 -1.336 -1.832
H13 0.886 -1.336 -1.832

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.31661.09301.09302.63553.66913.66913.52983.52984.39084.39084.39084.3908
C21.31662.10662.10661.31882.48022.48022.62002.62003.20133.20133.20133.2013
H31.09302.10661.86113.34104.31224.31224.10434.10435.17774.84894.84895.1777
H41.09302.10661.86113.34104.31224.31224.10434.10434.84895.17775.17774.8489
C52.63551.31883.34103.34101.51781.51782.17622.17622.16312.16312.16312.1631
C63.66912.48024.31224.31221.51782.58051.09593.52231.10141.10142.84772.8477
C73.66912.48024.31224.31221.51782.58053.52231.09592.84772.84771.10141.1014
H83.52982.62004.10434.10432.17621.09593.52234.34251.78441.78443.84573.8457
H93.52982.62004.10434.10432.17623.52231.09594.34253.84573.84571.78441.7844
H104.39083.20135.17774.84892.16311.10142.84771.78443.84571.77183.20652.6725
H114.39083.20134.84895.17772.16311.10142.84771.78443.84571.77182.67253.2065
H124.39083.20134.84895.17772.16312.84771.10143.84571.78443.20652.67251.7718
H134.39083.20135.17774.84892.16312.84771.10143.84571.78442.67253.20651.7718

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 121.652
C2 C1 H4 121.652 C2 C5 C6 121.815
C2 C5 C7 121.815 H3 C1 H4 116.696
C5 C6 H8 111.659 C5 C6 H10 110.400
C5 C6 H11 110.400 C5 C7 H9 111.659
C5 C7 H12 110.400 C5 C7 H13 110.400
C6 C5 C7 116.369 H8 C6 H10 108.556
H8 C6 H11 108.556 H9 C7 H12 108.556
H9 C7 H13 108.556 H10 C6 H11 107.134
H12 C7 H13 107.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.504      
2 C 0.624      
3 H 0.156      
4 H 0.156      
5 C -0.223      
6 C -0.592      
7 C -0.592      
8 H 0.168      
9 H 0.168      
10 H 0.160      
11 H 0.160      
12 H 0.160      
13 H 0.160      


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 -0.674 0.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.246 0.000 0.000
y 0.000 -32.772 0.000
z 0.000 0.000 -30.027
Traceless
 xyz
x -0.846 0.000 0.000
y 0.000 -1.635 0.000
z 0.000 0.000 2.481
Polar
3z2-r24.963
x2-y20.526
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.691 0.000 0.000
y 0.000 7.944 0.000
z 0.000 0.000 14.490


<r2> (average value of r2) Å2
<r2> 144.560
(<r2>)1/2 12.023