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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-156.671121
Energy at 298.15K-156.678845
HF Energy-156.109260
Nuclear repulsion energy115.531297
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 CCD/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 3166 2996 0.00      
2 A 3152 2983 0.00      
3 A 3066 2902 0.00      
4 A 1797 1701 0.00      
5 A 1547 1464 0.00      
6 A 1472 1393 0.00      
7 A 1366 1293 0.00      
8 A 1202 1138 0.00      
9 A 904 856 0.00      
10 A 510 482 0.00      
11 A 3130 2962 50.00      
12 A 1534 1452 11.80      
13 A 1104 1045 0.68      
14 A 1007 953 30.17      
15 A 247 234 3.05      
16 A 168 159 0.70      
17 A 3130 2962 0.00      
18 A 1534 1452 0.00      
19 A 1096 1037 0.00      
20 A 754 714 0.00      
21 A 214 203 0.00      
22 A 3171 3001 73.37      
23 A 3150 2981 14.50      
24 A 3066 2902 53.96      
25 A 1552 1469 14.29      
26 A 1472 1393 4.26      
27 A 1372 1298 2.71      
28 A 1116 1056 0.72      
29 A 1018 964 9.88      
30 A 287 272 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 24151.5 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 22859.4 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 CCD/6-31G*
ABC
1.15049 0.12383 0.11666

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 0.000
C2 0.000 -0.669 0.000
C3 -1.235 1.527 0.000
C4 1.235 -1.527 0.000
H5 0.956 1.198 0.000
H6 -0.956 -1.198 0.000
H7 -2.142 0.911 0.000
H8 2.142 -0.911 0.000
H9 -1.265 2.178 0.883
H10 -1.265 2.178 -0.883
H11 1.265 -2.178 0.883
H12 1.265 -2.178 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33721.50382.51871.09302.09702.15552.66122.15892.15893.23833.2383
C21.33722.51871.50382.09701.09302.66122.15553.23833.23832.15892.1589
C31.50382.51873.92712.21602.73831.09614.16461.09811.09814.55624.5562
C42.51871.50383.92712.73832.21604.16461.09614.55624.55621.09811.0981
H51.09302.09702.21602.73833.06533.11162.41882.58442.58443.50323.5032
H62.09701.09302.73832.21603.06532.41883.11163.50323.50322.58442.5844
H72.15552.66121.09614.16463.11162.41884.65491.77611.77614.68334.6833
H82.66122.15554.16461.09612.41883.11164.65494.68334.68331.77611.7761
H92.15893.23831.09814.55622.58443.50321.77614.68331.76635.03865.3392
H102.15893.23831.09814.55622.58443.50321.77614.68331.76635.33925.0386
H113.23832.15894.55621.09813.50322.58444.68331.77615.03865.33921.7663
H123.23832.15894.55621.09813.50322.58444.68331.77615.33925.03861.7663

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 124.787 C1 C2 H6 118.944
C1 C3 H7 111.038 C1 C3 H9 111.191
C1 C3 H10 111.191 C2 C1 C3 124.787
C2 C1 H5 118.944 C2 C4 H8 111.038
C2 C4 H11 111.191 C2 C4 H12 111.191
C3 C1 H5 116.269 C4 C2 H6 116.269
H7 C3 H9 108.088 H7 C3 H10 108.088
H8 C4 H11 108.088 H8 C4 H12 108.088
H9 C3 H10 107.079 H11 C4 H12 107.079
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability