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

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-157.285104
Energy at 298.15K-157.292860
Nuclear repulsion energy115.970365
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 B3LYP/6-311+G(3df,2p)
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 3104 3002 0.00      
2 A 3084 2982 0.00      
3 A 3008 2908 0.00      
4 A 1735 1677 0.00      
5 A 1491 1442 0.00      
6 A 1416 1369 0.00      
7 A 1336 1292 0.00      
8 A 1167 1128 0.00      
9 A 874 846 0.00      
10 A 502 486 0.00      
11 A 3047 2946 40.81      
12 A 1481 1432 13.30      
13 A 1069 1034 2.67      
14 A 1003 970 37.11      
15 A 246 238 3.79      
16 A 180 174 1.23      
17 A 3048 2947 0.00      
18 A 1482 1433 0.00      
19 A 1073 1038 0.00      
20 A 767 742 0.00      
21 A 234 226 0.00      
22 A 3113 3010 68.23      
23 A 3082 2980 18.95      
24 A 3007 2908 69.89      
25 A 1499 1450 20.37      
26 A 1414 1368 3.94      
27 A 1332 1288 5.04      
28 A 1071 1036 3.49      
29 A 989 957 14.53      
30 A 284 274 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 23568.6 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 22790.8 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 B3LYP/6-311+G(3df,2p)
ABC
1.16942 0.12436 0.11725

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.580 0.000
C2 -0.323 -0.580 0.000
C3 -0.323 1.932 0.000
C4 0.323 -1.932 0.000
H5 1.411 0.571 0.000
H6 -1.411 -0.571 0.000
H7 -1.411 1.854 0.000
H8 1.411 -1.854 0.000
H9 -0.025 2.513 0.877
H10 -0.025 2.513 -0.877
H11 0.025 -2.513 0.877
H12 0.025 -2.513 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.32881.49852.51231.08792.08192.15222.66652.15102.15103.22933.2293
C21.32882.51231.49852.08191.08792.66652.15223.22933.22932.15102.1510
C31.49852.51233.91772.20522.72881.09044.16471.09341.09344.54434.5443
C42.51231.49853.91772.72882.20524.16471.09044.54434.54431.09341.0934
H51.08792.08192.20522.72883.04463.10072.42492.57032.57033.49293.4929
H62.08191.08792.72882.20523.04462.42493.10073.49293.49292.57032.5703
H72.15222.66651.09044.16473.10072.42494.66041.76731.76734.68064.6806
H82.66652.15224.16471.09042.42493.10074.66044.68064.68061.76731.7673
H92.15103.22931.09344.54432.57033.49291.76734.68061.75335.02695.3239
H102.15103.22931.09344.54432.57033.49291.76734.68061.75335.32395.0269
H113.22932.15104.54431.09343.49292.57034.68061.76735.02695.32391.7533
H123.22932.15104.54431.09343.49292.57034.68061.76735.32395.02691.7533

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 125.285 C1 C2 H6 118.626
C1 C3 H7 111.494 C1 C3 H9 111.213
C1 C3 H10 111.213 C2 C1 C3 125.285
C2 C1 H5 118.626 C2 C4 H8 111.494
C2 C4 H11 111.213 C2 C4 H12 111.213
C3 C1 H5 116.089 C4 C2 H6 116.089
H7 C3 H9 108.056 H7 C3 H10 108.056
H8 C4 H11 108.056 H8 C4 H12 108.056
H9 C3 H10 106.605 H11 C4 H12 106.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 C -0.097      
3 C -0.447      
4 C -0.447      
5 H 0.114      
6 H 0.114      
7 H 0.131      
8 H 0.131      
9 H 0.149      
10 H 0.149      
11 H 0.149      
12 H 0.149      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.074 0.206 0.000
y 0.206 10.414 0.000
z 0.000 0.000 6.104


<r2> (average value of r2) Å2
<r2> 111.870
(<r2>)1/2 10.577