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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-157.192065
Energy at 298.15K-157.199834
Nuclear repulsion energy115.328801
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/6-31G
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 3136 3016 0.00      
2 A 3113 2994 0.00      
3 A 3024 2909 0.00      
4 A 1761 1694 0.00      
5 A 1536 1477 0.00      
6 A 1464 1408 0.00      
7 A 1367 1315 0.00      
8 A 1195 1150 0.00      
9 A 895 861 0.00      
10 A 511 491 0.00      
11 A 3075 2958 66.73      
12 A 1527 1469 16.60      
13 A 1104 1062 0.09      
14 A 1018 980 35.63      
15 A 249 239 3.89      
16 A 172 166 1.18      
17 A 3075 2958 0.00      
18 A 1527 1469 0.00      
19 A 1104 1062 0.00      
20 A 780 750 0.00      
21 A 224 216 0.00      
22 A 3145 3026 91.06      
23 A 3110 2992 22.18      
24 A 3023 2909 82.12      
25 A 1542 1484 17.31      
26 A 1463 1407 5.30      
27 A 1370 1318 3.47      
28 A 1094 1052 0.89      
29 A 1025 986 17.12      
30 A 285 274 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 23956.3 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 23046.0 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/6-31G
ABC
1.15579 0.12299 0.11595

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 0.000
C2 0.000 -0.670 0.000
C3 -1.230 1.538 0.000
C4 1.230 -1.538 0.000
H5 0.957 1.197 0.000
H6 -0.957 -1.197 0.000
H7 -2.145 0.935 0.000
H8 2.145 -0.935 0.000
H9 -1.258 2.194 0.881
H10 -1.258 2.194 -0.881
H11 1.258 -2.194 0.881
H12 1.258 -2.194 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34031.50522.52741.09192.09772.16162.67962.16332.16333.24963.2496
C21.34032.52741.50522.09771.09192.67962.16163.24963.24962.16332.1633
C31.50522.52743.93822.21302.74811.09574.18431.09891.09894.57044.5704
C42.52741.50523.93822.74812.21304.18431.09574.57044.57041.09891.0989
H51.09192.09772.21302.74813.06413.11282.44112.58342.58343.51603.5160
H62.09771.09192.74812.21303.06412.44113.11283.51603.51602.58342.5834
H72.16162.67961.09574.18433.11282.44114.68071.77411.77414.70634.7063
H82.67962.16164.18431.09572.44113.11284.68074.70634.70631.77411.7741
H92.16333.24961.09894.57042.58343.51601.77414.70631.76255.05745.3557
H102.16333.24961.09894.57042.58343.51601.77414.70631.76255.35575.0574
H113.24962.16334.57041.09893.51602.58344.70631.77415.05745.35571.7625
H123.24962.16334.57041.09893.51602.58344.70631.77415.35575.05741.7625

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 125.196 C1 C2 H6 118.832
C1 C3 H7 111.456 C1 C3 H9 111.393
C1 C3 H10 111.393 C2 C1 C3 125.196
C2 C1 H5 118.832 C2 C4 H8 111.456
C2 C4 H11 111.393 C2 C4 H12 111.393
C3 C1 H5 115.972 C4 C2 H6 115.972
H7 C3 H9 107.874 H7 C3 H10 107.874
H8 C4 H11 107.874 H8 C4 H12 107.874
H9 C3 H10 106.629 H11 C4 H12 106.629
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.108      
2 C -0.077      
3 H 0.108      
4 C -0.077      
5 H 0.139      
6 H 0.143      
7 H 0.143      
8 C -0.457      
9 H 0.139      
10 H 0.143      
11 H 0.143      
12 C -0.457      


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 -25.620 -0.118 0.000
y -0.118 -24.906 0.000
z 0.000 0.000 -27.784
Traceless
 xyz
x 0.725 -0.118 0.000
y -0.118 1.796 0.000
z 0.000 0.000 -2.521
Polar
3z2-r2-5.042
x2-y2-0.714
xy-0.118
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.227 -0.997 0.000
y -0.997 8.619 0.000
z 0.000 0.000 4.214


<r2> (average value of r2) Å2
<r2> 112.554
(<r2>)1/2 10.609