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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-194.013993
Energy at 298.15K-194.021482
HF Energy-194.013993
Nuclear repulsion energy158.349288
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 HF/Def2TZVPP
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 3269 2963 10.63      
2 A1 3255 2950 21.08      
3 A1 3156 2861 80.31      
4 A1 2195 1990 51.56      
5 A1 1632 1479 1.23      
6 A1 1595 1446 5.53      
7 A1 1541 1397 3.84      
8 A1 1413 1281 30.27      
9 A1 1107 1004 3.85      
10 A1 774 701 0.00      
11 A1 364 330 0.06      
12 A2 3195 2896 0.00      
13 A2 1593 1444 0.00      
14 A2 1087 986 0.00      
15 A2 664 602 0.00      
16 A2 181 164 0.00      
17 B1 3344 3031 5.55      
18 B1 3199 2899 64.13      
19 B1 1609 1459 13.93      
20 B1 1201 1089 0.38      
21 B1 1120 1016 3.07      
22 B1 516 468 0.09      
23 B1 289 262 6.86      
24 B1 201 182 1.23      
25 B2 3253 2949 24.81      
26 B2 3151 2856 19.97      
27 B2 1601 1451 5.52      
28 B2 1527 1384 2.83      
29 B2 1304 1182 5.40      
30 B2 1044 946 0.00      
31 B2 1001 907 56.58      
32 B2 660 598 16.59      
33 B2 206 187 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 26123.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 23678.6 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 HF/Def2TZVPP
ABC
0.27693 0.12291 0.08945

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.217
C2 0.000 0.000 0.923
H3 -0.919 0.000 2.774
H4 0.919 0.000 2.774
C5 0.000 0.000 -0.370
C6 0.000 1.284 -1.161
C7 0.000 -1.284 -1.161
H8 0.000 2.150 -0.514
H9 0.000 -2.150 -0.514
H10 0.874 1.332 -1.802
H11 -0.874 1.332 -1.802
H12 -0.874 -1.332 -1.802
H13 0.874 -1.332 -1.802

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.29401.07461.07462.58713.61353.61353.47543.47544.32284.32284.32284.3228
C21.29402.06702.06701.29302.44752.44752.58562.58563.15613.15613.15613.1561
H31.07462.06701.83723.27614.24014.24014.03474.03475.09214.76624.76625.0921
H41.07462.06701.83723.27614.24014.24014.03474.03474.76625.09215.09214.7662
C52.58711.29303.27613.27611.50811.50812.15432.15432.14182.14182.14182.1418
C63.61352.44754.24014.24011.50812.56861.08013.49421.08521.08522.83182.8318
C73.61352.44754.24014.24011.50812.56863.49421.08012.83182.83181.08521.0852
H83.47542.58564.03474.03472.15431.08013.49424.29901.75811.75813.81333.8133
H93.47542.58564.03474.03472.15433.49421.08014.29903.81333.81331.75811.7581
H104.32283.15615.09214.76622.14181.08522.83181.75813.81331.74883.18632.6635
H114.32283.15614.76625.09212.14181.08522.83181.75813.81331.74882.66353.1863
H124.32283.15614.76625.09212.14182.83181.08523.81331.75813.18632.66351.7488
H134.32283.15615.09214.76622.14182.83181.08523.81331.75812.66353.18631.7488

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 121.260
C2 C1 H4 121.260 C2 C5 C6 121.611
C2 C5 C7 121.611 H3 C1 H4 117.480
C5 C6 H8 111.619 C5 C6 H10 110.293
C5 C6 H11 110.293 C5 C7 H9 111.619
C5 C7 H12 110.293 C5 C7 H13 110.293
C6 C5 C7 116.779 H8 C6 H10 108.576
H8 C6 H11 108.576 H9 C7 H12 108.576
H9 C7 H13 108.576 H10 C6 H11 107.361
H12 C7 H13 107.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.140      
2 C 0.116      
3 H 0.077      
4 H 0.077      
5 C -0.175      
6 C -0.173      
7 C -0.173      
8 H 0.078      
9 H 0.078      
10 H 0.059      
11 H 0.059      
12 H 0.059      
13 H 0.059      


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 -0.681 0.681
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.268 0.000 0.000
y 0.000 -32.872 0.000
z 0.000 0.000 -29.938
Traceless
 xyz
x -0.863 0.000 0.000
y 0.000 -1.769 0.000
z 0.000 0.000 2.632
Polar
3z2-r25.264
x2-y20.604
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.468 0.000 0.000
y 0.000 7.497 0.000
z 0.000 0.000 13.652


<r2> (average value of r2) Å2
<r2> 141.293
(<r2>)1/2 11.887