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

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-157.244946
Energy at 298.15K-157.252651
Nuclear repulsion energy115.456303
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/6-31+G**
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 3125 3013 0.00      
2 A 3104 2993 0.00      
3 A 3021 2913 0.00      
4 A 1743 1681 0.00      
5 A 1493 1440 0.00      
6 A 1420 1369 0.00      
7 A 1332 1284 0.00      
8 A 1166 1125 0.00      
9 A 876 844 0.00      
10 A 500 482 0.00      
11 A 3069 2959 46.53      
12 A 1484 1431 15.72      
13 A 1070 1031 1.79      
14 A 993 958 42.28      
15 A 246 237 4.66      
16 A 173 167 1.65      
17 A 3069 2959 0.00      
18 A 1484 1431 0.00      
19 A 1066 1028 0.00      
20 A 754 727 0.00      
21 A 227 219 0.00      
22 A 3134 3021 81.58      
23 A 3102 2991 20.93      
24 A 3021 2913 78.86      
25 A 1501 1447 21.57      
26 A 1419 1368 3.72      
27 A 1330 1283 4.75      
28 A 1077 1038 3.27      
29 A 988 953 14.72      
30 A 279 269 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 23632.6 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 22786.6 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/6-31+G**
ABC
1.15957 0.12322 0.11618

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.000
C2 0.000 -0.669 0.000
C3 -1.226 1.539 0.000
C4 1.226 -1.539 0.000
H5 0.959 1.191 0.000
H6 -0.959 -1.191 0.000
H7 -2.143 0.940 0.000
H8 2.143 -0.940 0.000
H9 -1.249 2.194 0.880
H10 -1.249 2.194 -0.880
H11 1.249 -2.194 0.880
H12 1.249 -2.194 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33801.50342.52541.09202.09262.15992.67952.15892.15893.24533.2453
C21.33802.52541.50342.09261.09202.67952.15993.24533.24532.15892.1589
C31.50342.52543.93512.21312.74241.09494.18251.09771.09774.56454.5645
C42.52541.50343.93512.74242.21314.18251.09494.56454.56451.09771.0977
H51.09202.09262.21312.74243.05823.11232.43712.58042.58043.50933.5093
H62.09261.09202.74242.21313.05822.43713.11233.50933.50932.58042.5804
H72.15992.67951.09494.18253.11232.43714.67971.77391.77394.70114.7011
H82.67952.15994.18251.09492.43713.11234.67974.70114.70111.77391.7739
H92.15893.24531.09774.56452.58043.50931.77394.70111.76085.04925.3474
H102.15893.24531.09774.56452.58043.50931.77394.70111.76085.34745.0492
H113.24532.15894.56451.09773.50932.58044.70111.77395.04925.34741.7608
H123.24532.15894.56451.09773.50932.58044.70111.77395.34745.04921.7608

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 125.341 C1 C2 H6 118.542
C1 C3 H7 111.494 C1 C3 H9 111.240
C1 C3 H10 111.240 C2 C1 C3 125.341
C2 C1 H5 118.542 C2 C4 H8 111.494
C2 C4 H11 111.240 C2 C4 H12 111.240
C3 C1 H5 116.117 C4 C2 H6 116.117
H7 C3 H9 108.006 H7 C3 H10 108.006
H8 C4 H11 108.006 H8 C4 H12 108.006
H9 C3 H10 106.647 H11 C4 H12 106.647
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.117     -0.138
2 C 0.093     -0.134
3 H 0.117     -0.261
4 C 0.093     -0.254
5 H 0.148     0.133
6 H 0.154     0.134
7 H 0.154     0.082
8 C -0.664     0.079
9 H 0.148     0.090
10 H 0.154     0.090
11 H 0.154     0.089
12 C -0.664     0.089


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 -0.018 -0.016 0.000 0.024


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.279 0.031 0.000
y 0.031 -25.507 0.000
z 0.000 0.000 -28.573
Traceless
 xyz
x 0.761 0.031 0.000
y 0.031 1.919 0.000
z 0.000 0.000 -2.680
Polar
3z2-r2-5.359
x2-y2-0.772
xy0.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.073 -1.148 0.000
y -1.148 9.577 0.000
z 0.000 0.000 5.693


<r2> (average value of r2) Å2
<r2> 112.777
(<r2>)1/2 10.620