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All results from a given calculation for CH3CHCHCH3 (2-Butene, (E)-)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-157.092365
Energy at 298.15K-157.100154
Nuclear repulsion energy115.753206
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 B1B95/6-31G
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 3160 3014 0.00      
2 A 3141 2995 0.00      
3 A 3047 2906 0.00      
4 A 1780 1698 0.00      
5 A 1534 1463 0.00      
6 A 1460 1393 0.00      
7 A 1365 1302 0.00      
8 A 1200 1144 0.00      
9 A 903 862 0.00      
10 A 515 491 0.00      
11 A 3110 2966 56.02      
12 A 1523 1453 19.63      
13 A 1100 1049 0.15      
14 A 1022 974 40.59      
15 A 248 237 4.45      
16 A 175 167 1.28      
17 A 3110 2966 0.00      
18 A 1524 1453 0.00      
19 A 1103 1052 0.00      
20 A 783 747 0.00      
21 A 228 217 0.00      
22 A 3167 3021 89.29      
23 A 3141 2995 14.65      
24 A 3046 2905 74.45      
25 A 1540 1469 20.80      
26 A 1460 1393 8.45      
27 A 1365 1302 2.90      
28 A 1114 1062 1.51      
29 A 1023 976 18.62      
30 A 289 276 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 24086.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 22971.1 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 B1B95/6-31G
ABC
1.15971 0.12414 0.11699

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.584 0.000
C2 -0.326 -0.584 0.000
C3 -0.326 1.932 0.000
C4 0.326 -1.932 0.000
H5 1.416 0.576 0.000
H6 -1.416 -0.576 0.000
H7 -1.416 1.848 0.000
H8 1.416 -1.848 0.000
H9 -0.033 2.518 0.880
H10 -0.033 2.518 -0.880
H11 0.033 -2.518 0.880
H12 0.033 -2.518 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33711.49762.51621.09032.09262.15202.66502.15482.15483.23743.2374
C21.33712.51621.49762.09261.09032.66502.15203.23743.23742.15482.1548
C31.49762.51623.91932.20742.73521.09364.16221.09651.09654.55064.5506
C42.51621.49763.91932.73522.20744.16221.09364.55064.55061.09651.0965
H51.09032.09262.20742.73523.05743.10442.42412.57772.57773.50133.5013
H62.09261.09032.73522.20743.05742.42413.10443.50133.50132.57772.5777
H72.15202.66501.09364.16223.10442.42414.65611.77061.77064.68354.6835
H82.66502.15204.16221.09362.42413.10444.65614.68354.68351.77061.7706
H92.15483.23741.09654.55062.57773.50131.77064.68351.75935.03645.3348
H102.15483.23741.09654.55062.57773.50131.77064.68351.75935.33485.0364
H113.23742.15484.55061.09653.50132.57774.68351.77065.03645.33481.7593
H123.23742.15484.55061.09653.50132.57774.68351.77065.33485.03641.7593

picture of 2-Butene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.066 C1 C2 H6 118.747
C1 C3 H7 111.353 C1 C3 H9 111.399
C1 C3 H10 111.399 C2 C1 C3 125.066
C2 C1 H5 118.747 C2 C4 H8 111.353
C2 C4 H11 111.399 C2 C4 H12 111.399
C3 C1 H5 116.186 C4 C2 H6 116.186
H7 C3 H9 107.894 H7 C3 H10 107.894
H8 C4 H11 107.894 H8 C4 H12 107.894
H9 C3 H10 106.688 H11 C4 H12 106.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.108      
2 C -0.108      
3 C -0.509      
4 C -0.509      
5 H 0.133      
6 H 0.133      
7 H 0.158      
8 H 0.158      
9 H 0.163      
10 H 0.163      
11 H 0.163      
12 H 0.163      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.310 0.237 0.000
y 0.237 -24.667 0.000
z 0.000 0.000 -27.689
Traceless
 xyz
x 0.868 0.237 0.000
y 0.237 1.832 0.000
z 0.000 0.000 -2.701
Polar
3z2-r2-5.401
x2-y2-0.643
xy0.237
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.923 0.480 0.000
y 0.480 8.837 0.000
z 0.000 0.000 4.206


<r2> (average value of r2) Å2
<r2> 111.588
(<r2>)1/2 10.564