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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31+G**
 hartrees
Energy at 0K-156.718661
Energy at 298.15K-156.726384
HF Energy-156.126355
Nuclear repulsion energy115.918809
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=FULL/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 3219 3023 0.00      
2 A 3207 3012 0.00      
3 A 3109 2920 0.00      
4 A 1757 1650 0.00      
5 A 1541 1447 0.00      
6 A 1459 1370 0.00      
7 A 1355 1272 0.00      
8 A 1200 1127 0.00      
9 A 900 845 0.00      
10 A 508 477 0.00      
11 A 3189 2996 35.89      
12 A 1521 1429 13.47      
13 A 1095 1029 3.28      
14 A 1001 940 45.94      
15 A 246 231 4.44      
16 A 166 156 1.44      
17 A 3190 2996 0.00      
18 A 1522 1429 0.00      
19 A 1077 1012 0.00      
20 A 739 694 0.00      
21 A 216 203 0.00      
22 A 3224 3028 75.82      
23 A 3207 3012 7.77      
24 A 3109 2920 61.75      
25 A 1547 1453 19.65      
26 A 1459 1370 4.90      
27 A 1359 1276 3.87      
28 A 1117 1049 2.18      
29 A 1011 950 10.32      
30 A 285 268 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 24267.4 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 22792.0 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 MP2=FULL/6-31+G**
ABC
1.15793 0.12454 0.11730

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 0.000
C2 0.000 -0.671 0.000
C3 -1.232 1.522 0.000
C4 1.232 -1.522 0.000
H5 0.954 1.190 0.000
H6 -0.954 -1.190 0.000
H7 -2.130 0.906 0.000
H8 2.130 -0.906 0.000
H9 -1.263 2.169 0.877
H10 -1.263 2.169 -0.877
H11 1.263 -2.169 0.877
H12 1.263 -2.169 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34121.49762.51521.08652.09112.14312.65032.14682.14683.22913.2291
C21.34122.51521.49762.09111.08652.65032.14313.22913.22912.14682.1468
C31.49762.51523.91652.21132.72651.08894.14741.09041.09044.54054.5405
C42.51521.49763.91652.72652.21134.14741.08894.54054.54051.09041.0904
H51.08652.09112.21132.72653.05093.09732.40382.57732.57733.48543.4854
H62.09111.08652.72652.21133.05092.40383.09733.48543.48542.57732.5773
H72.14312.65031.08894.14743.09732.40384.62981.76521.76524.66244.6624
H82.65032.14314.14741.08892.40383.09734.62984.66244.66241.76521.7652
H92.14683.22911.09044.54052.57733.48541.76524.66241.75495.01925.3172
H102.14683.22911.09044.54052.57733.48541.76524.66241.75495.31725.0192
H113.22912.14684.54051.09043.48542.57734.66241.76525.01925.31721.7549
H123.22912.14684.54051.09043.48542.57734.66241.76525.31725.01921.7549

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 124.652 C1 C2 H6 118.565
C1 C3 H7 110.914 C1 C3 H9 111.122
C1 C3 H10 111.122 C2 C1 C3 124.652
C2 C1 H5 118.565 C2 C4 H8 110.914
C2 C4 H11 111.122 C2 C4 H12 111.122
C3 C1 H5 116.783 C4 C2 H6 116.783
H7 C3 H9 108.189 H7 C3 H10 108.189
H8 C4 H11 108.189 H8 C4 H12 108.189
H9 C3 H10 107.155 H11 C4 H12 107.155
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability