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

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-156.742706
Energy at 298.15K-156.750429
HF Energy-156.150034
Nuclear repulsion energy115.650723
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 MP2/6-311G**
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 3170 3012 0.00      
2 A 3158 3001 0.00      
3 A 3065 2912 0.00      
4 A 1736 1649 0.00      
5 A 1513 1437 0.00      
6 A 1428 1357 0.00      
7 A 1329 1263 0.00      
8 A 1181 1123 0.00      
9 A 888 843 0.00      
10 A 504 479 0.00      
11 A 3138 2982 42.22      
12 A 1497 1422 13.42      
13 A 1079 1025 1.13      
14 A 995 945 36.21      
15 A 245 233 3.48      
16 A 172 164 1.03      
17 A 3139 2982 0.00      
18 A 1497 1423 0.00      
19 A 1063 1010 0.00      
20 A 735 698 0.00      
21 A 221 210 0.00      
22 A 3176 3017 70.59      
23 A 3157 3000 10.18      
24 A 3064 2912 56.31      
25 A 1519 1443 17.68      
26 A 1428 1357 4.63      
27 A 1330 1264 3.96      
28 A 1105 1050 2.08      
29 A 994 945 10.12      
30 A 281 267 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 23903.0 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 22712.6 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 MP2/6-311G**
ABC
1.14945 0.12417 0.11694

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.329 0.584 0.000
C2 -0.329 -0.584 0.000
C3 -0.329 1.933 0.000
C4 0.329 -1.933 0.000
H5 1.420 0.568 0.000
H6 -1.420 -0.568 0.000
H7 -1.419 1.836 0.000
H8 1.419 -1.836 0.000
H9 -0.037 2.514 0.882
H10 -0.037 2.514 -0.882
H11 0.037 -2.514 0.882
H12 0.037 -2.514 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34091.50182.51741.09082.09452.15022.65372.15342.15343.23433.2343
C21.34092.51741.50182.09451.09082.65372.15023.23433.23432.15342.1534
C31.50182.51743.92272.21962.72851.09364.15511.09541.09544.54894.5489
C42.51741.50183.92272.72852.21964.15511.09364.54894.54891.09541.0954
H51.09082.09452.21962.72853.05863.10932.40352.58652.58653.49093.4909
H62.09451.09082.72852.21963.05862.40353.10933.49093.49092.58652.5865
H72.15022.65371.09364.15513.10932.40354.64041.77371.77374.67114.6711
H82.65372.15024.15511.09362.40353.10934.64044.67114.67111.77371.7737
H92.15343.23431.09544.54892.58653.49091.77374.67111.76335.02875.3289
H102.15343.23431.09544.54892.58653.49091.77374.67111.76335.32895.0287
H113.23432.15344.54891.09543.49092.58654.67111.77375.02875.32891.7633
H123.23432.15344.54891.09543.49092.58654.67111.77375.32895.02871.7633

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 124.547 C1 C2 H6 118.569
C1 C3 H7 110.908 C1 C3 H9 111.052
C1 C3 H10 111.052 C2 C1 C3 124.547
C2 C1 H5 118.569 C2 C4 H8 110.908
C2 C4 H11 111.052 C2 C4 H12 111.052
C3 C1 H5 116.884 C4 C2 H6 116.884
H7 C3 H9 108.246 H7 C3 H10 108.246
H8 C4 H11 108.246 H8 C4 H12 108.246
H9 C3 H10 107.195 H11 C4 H12 107.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability