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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-157.090762
Energy at 298.15K-157.098427
Nuclear repulsion energy114.496763
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 BLYP/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 3049 3026 0.00      
2 A 3031 3008 0.00      
3 A 2945 2922 0.00      
4 A 1696 1683 0.00      
5 A 1497 1486 0.00      
6 A 1423 1412 0.00      
7 A 1331 1321 0.00      
8 A 1159 1150 0.00      
9 A 867 861 0.00      
10 A 496 492 0.00      
11 A 2989 2966 75.17      
12 A 1489 1478 13.84      
13 A 1073 1064 0.29      
14 A 985 978 30.14      
15 A 241 239 3.56      
16 A 170 168 1.27      
17 A 2989 2966 0.00      
18 A 1489 1478 0.00      
19 A 1064 1056 0.00      
20 A 748 743 0.00      
21 A 221 220 0.00      
22 A 3060 3037 108.89      
23 A 3029 3006 18.64      
24 A 2944 2921 92.17      
25 A 1505 1493 14.56      
26 A 1422 1411 3.22      
27 A 1333 1323 5.01      
28 A 1055 1047 0.80      
29 A 997 990 16.98      
30 A 277 275 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 23285.8 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 23108.8 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 BLYP/6-31G
ABC
1.14063 0.12117 0.11425

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.675 0.000
C2 0.000 -0.675 0.000
C3 -1.237 1.551 0.000
C4 1.237 -1.551 0.000
H5 0.963 1.206 0.000
H6 -0.963 -1.206 0.000
H7 -2.160 0.947 0.000
H8 2.160 -0.947 0.000
H9 -1.264 2.213 0.887
H10 -1.264 2.213 -0.887
H11 1.264 -2.213 0.887
H12 1.264 -2.213 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.35081.51522.54651.09982.11352.17732.70162.17872.17873.27483.2748
C21.35082.54651.51522.11351.09982.70162.17733.27483.27482.17872.1787
C31.51522.54653.96692.22722.76981.10334.21631.10701.10704.60454.6045
C42.54651.51523.96692.76982.22724.21631.10334.60454.60451.10701.1070
H51.09982.11352.22722.76983.08673.13452.46282.60032.60033.54423.5442
H62.11351.09982.76982.22723.08672.46283.13453.54423.54422.60032.6003
H72.17732.70161.10334.21633.13452.46284.71731.78661.78664.74274.7427
H82.70162.17734.21631.10332.46283.13454.71734.74274.74271.78661.7866
H92.17873.27481.10704.60452.60033.54421.78664.74271.77375.09625.3961
H102.17873.27481.10704.60452.60033.54421.78664.74271.77375.39615.0962
H113.27482.17874.60451.10703.54422.60034.74271.78665.09625.39611.7737
H123.27482.17874.60451.10703.54422.60034.74271.78665.39615.09621.7737

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 125.283 C1 C2 H6 118.827
C1 C3 H7 111.538 C1 C3 H9 111.430
C1 C3 H10 111.430 C2 C1 C3 125.283
C2 C1 H5 118.827 C2 C4 H8 111.538
C2 C4 H11 111.430 C2 C4 H12 111.430
C3 C1 H5 115.889 C4 C2 H6 115.889
H7 C3 H9 107.865 H7 C3 H10 107.865
H8 C4 H11 107.865 H8 C4 H12 107.865
H9 C3 H10 106.477 H11 C4 H12 106.477
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.085      
2 C -0.049      
3 H 0.085      
4 C -0.049      
5 H 0.125      
6 H 0.129      
7 H 0.129      
8 C -0.418      
9 H 0.125      
10 H 0.129      
11 H 0.129      
12 C -0.418      


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 -25.739 -0.178 0.000
y -0.178 -25.006 0.000
z 0.000 0.000 -27.791
Traceless
 xyz
x 0.660 -0.178 0.000
y -0.178 1.759 0.000
z 0.000 0.000 -2.419
Polar
3z2-r2-4.837
x2-y2-0.733
xy-0.178
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 114.042
(<r2>)1/2 10.679