return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H10 (2-Butene, 2-methyl-)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-196.412912
Energy at 298.15K-196.422589
HF Energy-196.412912
Nuclear repulsion energy 
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 B97D3/6-31G*
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' 3092 3031 51.83      
2 A' 3084 3023 47.16      
3 A' 3069 3009 23.83      
4 A' 3065 3005 4.37      
5 A' 2972 2914 14.35      
6 A' 2969 2911 95.22      
7 A' 2961 2903 36.07      
8 A' 1719 1685 0.89      
9 A' 1501 1472 8.39      
10 A' 1499 1470 1.33      
11 A' 1484 1455 1.12      
12 A' 1422 1394 0.48      
13 A' 1412 1385 0.27      
14 A' 1407 1379 3.82      
15 A' 1366 1339 5.17      
16 A' 1222 1198 5.51      
17 A' 1122 1100 9.98      
18 A' 1060 1040 6.40      
19 A' 961 942 2.01      
20 A' 954 935 1.64      
21 A' 764 749 1.80      
22 A' 519 509 2.16      
23 A' 381 373 0.39      
24 A' 296 290 0.24      
25 A" 3015 2956 70.60      
26 A" 3014 2955 11.16      
27 A" 3009 2950 20.97      
28 A" 1492 1463 15.14      
29 A" 1484 1455 1.49      
30 A" 1473 1444 0.68      
31 A" 1094 1073 0.50      
32 A" 1046 1025 0.33      
33 A" 1009 989 1.86      
34 A" 808 792 11.38      
35 A" 438 430 2.02      
36 A" 256 251 1.32      
37 A" 178 175 1.23      
38 A" 138 135 0.07      
39 A" 111 109 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 29432.7 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 28855.8 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 B97D3/6-31G*
ABC
0.26642 0.11602 0.08465

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.510 0.497 0.000
H2 -1.976 -0.495 0.000
H3 -1.882 1.045 0.883
H4 -1.882 1.045 -0.883
C5 0.268 -2.103 0.000
H6 0.650 -2.643 -0.883
H7 0.650 -2.643 0.883
H8 -0.825 -2.198 0.000
C9 0.739 -0.675 0.000
H10 1.829 -0.556 0.000
C11 0.000 0.453 0.000
C12 0.662 1.812 0.000
H13 1.758 1.736 0.000
H14 0.360 2.401 0.883
H15 0.360 2.401 -0.883

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.09641.10341.10343.15013.91223.91222.78072.53623.50091.51052.53923.49512.81082.8108
H21.09641.77771.77772.76063.50543.50542.05502.72113.80522.19163.50504.35003.82423.8242
H31.10341.77771.76553.91294.80914.47313.52293.25664.13642.16102.79983.80862.61983.1593
H41.10341.77771.76553.91294.47314.80913.52293.25664.13642.16102.79983.80863.15932.6198
C53.15012.76063.91293.91291.10321.10321.09731.50432.19772.57023.93554.11854.59134.5913
H63.91223.50544.80914.47311.10321.76641.77612.15902.55423.28424.54194.60255.35235.0524
H73.91223.50544.47314.80911.10321.76641.77612.15902.55423.28424.54194.60255.05245.3523
H82.78072.05503.52293.52291.09731.77611.77612.18353.12092.77634.27734.70654.83084.8308
C92.53622.72113.25663.25661.50432.15902.15902.18351.09601.34842.48842.61743.22273.2227
H103.50093.80524.13644.13642.19772.55422.55423.12091.09602.08872.64022.29333.41823.4182
C111.51052.19162.16102.16102.57023.28423.28422.77631.34842.08871.51222.17682.16922.1692
C122.53923.50502.79982.79983.93554.54194.54194.27732.48842.64021.51221.09871.10371.1037
H133.49514.35003.80863.80864.11854.60254.60254.70652.61742.29332.17681.09871.78281.7828
H142.81083.82422.61983.15934.59135.35235.05244.83083.22273.41822.16921.10371.78281.7662
H152.81083.82423.15932.61984.59135.05245.35234.83083.22273.41822.16921.10371.78281.7662

picture of 2-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C11 C9 124.937 C1 C11 C12 114.303
H2 C1 H3 107.812 H2 C1 H4 107.812
H2 C1 C11 113.516 H3 C1 H4 106.324
H3 C1 C11 110.535 H4 C1 C11 110.535
C5 C9 H10 114.471 C5 C9 C11 128.537
H6 C5 H7 106.425 H6 C5 H8 107.625
H6 C5 C9 110.844 H7 C5 H8 107.625
H7 C5 C9 110.844 H8 C5 C9 113.174
C9 C11 C12 120.760 H10 C9 C11 116.992
C11 C12 H13 112.012 C11 C12 H14 111.091
C11 C12 H15 111.091 H13 C12 H14 108.049
H13 C12 H15 108.049 H14 C12 H15 106.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.524      
2 H 0.157      
3 H 0.155      
4 H 0.155      
5 C -0.500      
6 H 0.157      
7 H 0.157      
8 H 0.156      
9 C -0.158      
10 H 0.115      
11 C 0.188      
12 C -0.517      
13 H 0.154      
14 H 0.152      
15 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.177 0.046 0.000 0.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.043 -0.321 0.000
y -0.321 -31.709 0.000
z 0.000 0.000 -33.828
Traceless
 xyz
x 0.726 -0.321 0.000
y -0.321 1.226 0.000
z 0.000 0.000 -1.952
Polar
3z2-r2-3.904
x2-y2-0.334
xy-0.321
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.374 -1.060 0.000
y -1.060 10.715 0.000
z 0.000 0.000 5.802


<r2> (average value of r2) Å2
<r2> 152.003
(<r2>)1/2 12.329