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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-156.736514
Energy at 298.15K-156.744231
HF Energy-156.122205
Nuclear repulsion energy114.883927
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/cc-pVDZ
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 3028 0.00      
2 A 3152 3015 0.00      
3 A 3058 2925 0.00      
4 A 1780 1703 0.00      
5 A 1491 1427 0.00      
6 A 1424 1362 0.00      
7 A 1331 1273 0.00      
8 A 1177 1126 0.00      
9 A 886 848 0.00      
10 A 501 479 0.00      
11 A 3128 2993 47.36      
12 A 1481 1417 10.25      
13 A 1073 1026 1.83      
14 A 1001 958 26.49      
15 A 245 235 2.84      
16 A 171 164 0.87      
17 A 3129 2993 0.00      
18 A 1482 1418 0.00      
19 A 1066 1019 0.00      
20 A 749 717 0.00      
21 A 220 210 0.00      
22 A 3171 3033 70.57      
23 A 3149 3013 13.85      
24 A 3057 2925 63.75      
25 A 1498 1433 13.87      
26 A 1424 1362 2.07      
27 A 1328 1270 4.62      
28 A 1104 1057 2.21      
29 A 987 945 8.67      
30 A 281 269 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 23854.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22822.0 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 CCD/cc-pVDZ
ABC
1.13474 0.12263 0.11550

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.673 0.000
C2 0.000 -0.673 0.000
C3 -1.241 1.534 0.000
C4 1.241 -1.534 0.000
H5 0.966 1.202 0.000
H6 -0.966 -1.202 0.000
H7 -2.155 0.915 0.000
H8 2.155 -0.915 0.000
H9 -1.269 2.191 0.889
H10 -1.269 2.191 -0.889
H11 1.269 -2.191 0.889
H12 1.269 -2.191 -0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34561.51022.53141.10112.10882.16892.67712.16942.16943.25623.2562
C21.34562.53141.51022.10881.10112.67712.16893.25623.25622.16942.1694
C31.51022.53143.94552.23142.74921.10414.18691.10621.10624.57864.5786
C42.53141.51023.94552.74922.23144.18691.10414.57864.57861.10621.1062
H51.10112.10882.23142.74923.08353.13422.42832.60082.60083.52053.5205
H62.10881.10112.74922.23143.08352.42833.13423.52053.52052.60082.6008
H72.16892.67711.10414.18693.13422.42834.68311.78991.78994.70814.7081
H82.67712.16894.18691.10412.42833.13424.68314.70814.70811.78991.7899
H92.16943.25621.10624.57862.60083.52051.78994.70811.77855.06415.3673
H102.16943.25621.10624.57862.60083.52051.78994.70811.77855.36735.0641
H113.25622.16944.57861.10623.52052.60084.70811.78995.06415.36731.7785
H123.25622.16944.57861.10623.52052.60084.70811.78995.36735.06411.7785

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 124.749 C1 C2 H6 118.714
C1 C3 H7 111.177 C1 C3 H9 111.089
C1 C3 H10 111.089 C2 C1 C3 124.749
C2 C1 H5 118.714 C2 C4 H8 111.177
C2 C4 H11 111.089 C2 C4 H12 111.089
C3 C1 H5 116.536 C4 C2 H6 116.536
H7 C3 H9 108.157 H7 C3 H10 108.157
H8 C4 H11 108.157 H8 C4 H12 108.157
H9 C3 H10 107.008 H11 C4 H12 107.008
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability