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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-156.170333
Energy at 298.15K-156.178287
HF Energy-156.170333
Nuclear repulsion energy118.052486
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3294 2986 60.53      
2 A1 3263 2958 19.10      
3 A1 3158 2862 12.03      
4 A1 1872 1697 5.19      
5 A1 1613 1462 5.17      
6 A1 1544 1399 1.93      
7 A1 1391 1260 0.00      
8 A1 1105 1001 0.83      
9 A1 913 827 0.59      
10 A1 308 279 0.00      
11 A2 3193 2894 0.00      
12 A2 1599 1449 0.00      
13 A2 1176 1066 0.00      
14 A2 1106 1003 0.00      
15 A2 435 394 0.00      
16 A2 140 127 0.00      
17 B1 3193 2895 65.83      
18 B1 1604 1454 10.99      
19 B1 1164 1055 9.51      
20 B1 765 694 41.69      
21 B1 139 126 0.78      
22 B2 3267 2961 20.69      
23 B2 3241 2938 8.86      
24 B2 3155 2860 64.73      
25 B2 1607 1456 4.28      
26 B2 1564 1417 4.53      
27 B2 1509 1368 5.48      
28 B2 1253 1135 0.06      
29 B2 1032 936 11.61      
30 B2 607 550 5.43      

Unscaled Zero Point Vibrational Energy (zpe) 25104.4 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 22754.6 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 HF/Def2TZVPP
ABC
0.55334 0.16962 0.13626

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 0.627
C2 0.000 -0.662 0.627
C3 0.000 1.659 -0.501
C4 0.000 -1.659 -0.501
H5 0.000 1.125 1.599
H6 0.000 -1.125 1.599
H7 0.000 1.224 -1.483
H8 0.000 -1.224 -1.483
H9 -0.869 2.306 -0.437
H10 0.869 2.306 -0.437
H11 0.869 -2.306 -0.437
H12 -0.869 -2.306 -0.437

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.32501.50552.58111.07602.03422.18402.83102.14272.14273.27153.2715
C21.32502.58111.50552.03421.07602.83102.18403.27153.27152.14272.1427
C31.50552.58113.31762.16723.48691.07363.04581.08581.08584.05974.0597
C42.58111.50553.31763.48692.16723.04581.07364.05974.05971.08581.0858
H51.07602.03422.16723.48692.24923.08383.87532.50992.50994.08334.0833
H62.03421.07603.48692.16722.24923.87533.08384.08334.08332.50992.5099
H72.18402.83101.07363.04583.08383.87532.44881.73761.73763.78343.7834
H82.83102.18403.04581.07363.87533.08382.44883.78343.78341.73761.7376
H92.14273.27151.08584.05972.50994.08331.73763.78341.73884.92924.6123
H102.14273.27151.08584.05972.50994.08331.73763.78341.73884.61234.9292
H113.27152.14274.05971.08584.08332.50993.78341.73764.92924.61231.7388
H123.27152.14274.05971.08584.08332.50993.78341.73764.61234.92921.7388

picture of 2-Butene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 131.437 C1 C2 H6 115.432
C1 C3 H7 114.697 C1 C3 H9 110.516
C1 C3 H10 110.516 C2 C1 C3 131.437
C2 C1 H5 115.432 C2 C4 H8 114.697
C2 C4 H11 110.516 C2 C4 H12 110.516
C3 C1 H5 113.131 C4 C2 H6 113.131
H7 C3 H9 107.157 H7 C3 H10 107.157
H8 C4 H11 107.157 H8 C4 H12 107.157
H9 C3 H10 106.393 H11 C4 H12 106.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 C -0.103      
3 C -0.134      
4 C -0.134      
5 H 0.063      
6 H 0.063      
7 H 0.053      
8 H 0.053      
9 H 0.060      
10 H 0.060      
11 H 0.060      
12 H 0.060      


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 -0.231 0.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.382 0.000 0.000
y 0.000 -25.314 0.000
z 0.000 0.000 -26.306
Traceless
 xyz
x -2.571 0.000 0.000
y 0.000 2.029 0.000
z 0.000 0.000 0.542
Polar
3z2-r21.084
x2-y2-3.067
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.541 0.000 0.000
y 0.000 9.512 0.000
z 0.000 0.000 6.470


<r2> (average value of r2) Å2
<r2> 99.166
(<r2>)1/2 9.958