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

using model chemistry: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-157.140050
Energy at 298.15K-157.147771
Nuclear repulsion energy115.914155
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 B1B95/6-31+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 3150 3013 0.00      
2 A 3134 2998 0.00      
3 A 3045 2912 0.00      
4 A 1764 1688 0.00      
5 A 1488 1423 0.00      
6 A 1411 1350 0.00      
7 A 1328 1270 0.00      
8 A 1168 1118 0.00      
9 A 882 844 0.00      
10 A 503 481 0.00      
11 A 3104 2970 38.94      
12 A 1477 1413 16.92      
13 A 1061 1015 1.98      
14 A 997 954 42.40      
15 A 245 234 4.73      
16 A 176 168 1.64      
17 A 3105 2970 0.00      
18 A 1477 1413 0.00      
19 A 1061 1015 0.00      
20 A 755 722 0.00      
21 A 232 221 0.00      
22 A 3156 3019 83.82      
23 A 3134 2998 11.24      
24 A 3044 2912 72.72      
25 A 1496 1431 23.25      
26 A 1412 1351 5.08      
27 A 1321 1264 4.33      
28 A 1097 1049 4.17      
29 A 982 939 15.35      
30 A 283 271 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 23743.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 22712.9 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 B1B95/6-31+G**
ABC
1.16361 0.12448 0.11732

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 0.583 0.000
C2 -0.324 -0.583 0.000
C3 -0.324 1.930 0.000
C4 0.324 -1.930 0.000
H5 1.415 0.571 0.000
H6 -1.415 -0.571 0.000
H7 -1.414 1.848 0.000
H8 1.414 -1.848 0.000
H9 -0.028 2.513 0.879
H10 -0.028 2.513 -0.879
H11 0.028 -2.513 0.879
H12 0.028 -2.513 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33441.49512.51311.09052.08732.14992.66402.15002.15003.23223.2322
C21.33442.51311.49512.08731.09052.66402.14993.23223.23222.15002.1500
C31.49512.51313.91422.20712.72861.09274.15881.09531.09534.54324.5432
C42.51311.49513.91422.72862.20714.15881.09274.54324.54321.09531.0953
H51.09052.08732.20712.72863.05153.10362.41922.57432.57433.49403.4940
H62.08731.09052.72862.20713.05152.41923.10363.49403.49402.57432.5743
H72.14992.66401.09274.15883.10362.41924.65381.77041.77044.67704.6770
H82.66402.14994.15881.09272.41923.10364.65384.67704.67701.77041.7704
H92.15003.23221.09534.54322.57433.49401.77044.67701.75705.02715.3253
H102.15003.23221.09534.54322.57433.49401.77044.67701.75705.32535.0271
H113.23222.15004.54321.09533.49402.57434.67701.77045.02715.32531.7570
H123.23222.15004.54321.09533.49402.57434.67701.77045.32535.02711.7570

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 125.192 C1 C2 H6 118.467
C1 C3 H7 111.412 C1 C3 H9 111.261
C1 C3 H10 111.261 C2 C1 C3 125.192
C2 C1 H5 118.467 C2 C4 H8 111.412
C2 C4 H11 111.261 C2 C4 H12 111.261
C3 C1 H5 116.341 C4 C2 H6 116.341
H7 C3 H9 108.023 H7 C3 H10 108.023
H8 C4 H11 108.023 H8 C4 H12 108.023
H9 C3 H10 106.658 H11 C4 H12 106.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.072      
2 C 0.072      
3 C -0.694      
4 C -0.694      
5 H 0.134      
6 H 0.134      
7 H 0.158      
8 H 0.158      
9 H 0.165      
10 H 0.165      
11 H 0.165      
12 H 0.165      


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 -25.733 0.333 0.000
y 0.333 -25.311 0.000
z 0.000 0.000 -28.274
Traceless
 xyz
x 1.060 0.333 0.000
y 0.333 1.692 0.000
z 0.000 0.000 -2.752
Polar
3z2-r2-5.504
x2-y2-0.422
xy0.333
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.612 0.430 0.000
y 0.430 9.849 0.000
z 0.000 0.000 5.574


<r2> (average value of r2) Å2
<r2> 111.662
(<r2>)1/2 10.567