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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-157.050515
Energy at 298.15K-157.058166
Nuclear repulsion energy115.530545
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 PBEPBE/cc-pVTZ
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 3044 3023 0.00      
2 A 3028 3007 0.00      
3 A 2949 2929 0.00      
4 A 1692 1680 0.00      
5 A 1436 1426 0.00      
6 A 1359 1350 0.00      
7 A 1288 1279 0.00      
8 A 1134 1126 0.00      
9 A 854 848 0.00      
10 A 489 486 0.00      
11 A 2994 2973 39.29      
12 A 1425 1415 13.25      
13 A 1028 1021 0.48      
14 A 966 959 32.66      
15 A 239 237 3.72      
16 A 179 177 1.22      
17 A 2995 2974 0.00      
18 A 1425 1415 0.00      
19 A 1025 1018 0.00      
20 A 731 726 0.00      
21 A 232 230 0.00      
22 A 3051 3029 80.67      
23 A 3029 3008 8.07      
24 A 2949 2929 67.12      
25 A 1445 1435 19.52      
26 A 1358 1349 4.64      
27 A 1281 1272 5.39      
28 A 1062 1054 5.06      
29 A 953 947 16.17      
30 A 273 271 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 22955.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 22796.9 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 PBEPBE/cc-pVTZ
ABC
1.15539 0.12380 0.11667

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.585 0.000
C2 -0.325 -0.585 0.000
C3 -0.325 1.934 0.000
C4 0.325 -1.934 0.000
H5 1.421 0.572 0.000
H6 -1.421 -0.572 0.000
H7 -1.420 1.854 0.000
H8 1.420 -1.854 0.000
H9 -0.026 2.524 0.882
H10 -0.026 2.524 -0.882
H11 0.026 -2.524 0.882
H12 0.026 -2.524 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33781.49752.51941.09692.09452.15742.67362.15872.15873.24533.2453
C21.33782.51941.49752.09451.09692.67362.15743.24533.24532.15872.1587
C31.49752.51943.92302.21442.73611.09874.17081.10201.10204.55824.5582
C42.51941.49753.92302.73612.21444.17081.09874.55824.55821.10201.1020
H51.09692.09452.21442.73613.06433.11722.42602.58462.58463.50883.5088
H62.09451.09692.73612.21443.06432.42603.11723.50883.50882.58462.5846
H72.15742.67361.09874.17083.11722.42604.67061.78101.78104.69394.6939
H82.67362.15744.17081.09872.42603.11724.67064.69394.69391.78101.7810
H92.15873.24531.10204.55822.58463.50881.78104.69391.76375.04815.3473
H102.15873.24531.10204.55822.58463.50881.78104.69391.76375.34735.0481
H113.24532.15874.55821.10203.50882.58464.69391.78105.04815.34731.7637
H123.24532.15874.55821.10203.50882.58464.69391.78105.34735.04811.7637

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 125.295 C1 C2 H6 118.359
C1 C3 H7 111.471 C1 C3 H9 111.374
C1 C3 H10 111.374 C2 C1 C3 125.295
C2 C1 H5 118.359 C2 C4 H8 111.471
C2 C4 H11 111.374 C2 C4 H12 111.374
C3 C1 H5 116.346 C4 C2 H6 116.346
H7 C3 H9 108.049 H7 C3 H10 108.049
H8 C4 H11 108.049 H8 C4 H12 108.049
H9 C3 H10 106.300 H11 C4 H12 106.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 C -0.103      
3 C -0.267      
4 C -0.267      
5 H 0.083      
6 H 0.083      
7 H 0.091      
8 H 0.091      
9 H 0.098      
10 H 0.098      
11 H 0.098      
12 H 0.098      


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 -25.986 0.310 0.000
y 0.310 -25.512 0.000
z 0.000 0.000 -28.166
Traceless
 xyz
x 0.853 0.310 0.000
y 0.310 1.564 0.000
z 0.000 0.000 -2.417
Polar
3z2-r2-4.835
x2-y2-0.474
xy0.310
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.067 0.200 0.000
y 0.200 10.605 0.000
z 0.000 0.000 5.577


<r2> (average value of r2) Å2
<r2> 112.321
(<r2>)1/2 10.598