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All results from a given calculation for CH2CHCHCH2 (1,3-Butadiene)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-155.484534
Energy at 298.15K-155.489817
HF Energy-154.917014
Nuclear repulsion energy103.118765
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3254 3107        
2 Ag 3167 3024        
3 Ag 3148 3006        
4 Ag 1719 1641        
5 Ag 1502 1434        
6 Ag 1328 1268        
7 Ag 1249 1193        
8 Ag 910 869        
9 Ag 516 493        
10 Au 1033 986        
11 Au 896 856        
12 Au 527 503        
13 Au 158 151        
14 Bg 979 934        
15 Bg 897 857        
16 Bg 757 723        
17 Bu 3254 3107        
18 Bu 3166 3023        
19 Bu 3155 3013        
20 Bu 1654 1579        
21 Bu 1434 1369        
22 Bu 1337 1276        
23 Bu 1015 969        
24 Bu 294 281        

Unscaled Zero Point Vibrational Energy (zpe) 18673.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17829.3 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 MP4/6-31G*
ABC
1.38949 0.14620 0.13228

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.732 0.000
C2 0.000 -0.732 0.000
C3 1.121 1.482 0.000
C4 -1.121 -1.482 0.000
H5 -0.979 1.221 0.000
H6 0.979 -1.221 0.000
H7 1.082 2.570 0.000
H8 2.112 1.027 0.000
H9 -1.082 -2.570 0.000
H10 -2.112 -1.027 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.46301.34912.48151.09392.18362.13352.13263.47452.7485
C21.46302.48151.34912.18361.09393.47452.74852.13352.1326
C31.34912.48153.71682.11562.70671.08841.09064.61264.0927
C42.48151.34913.71682.70672.11564.61264.09271.08841.0906
H51.09392.18362.11562.70673.12882.46343.09653.79212.5176
H62.18361.09392.70672.11563.12883.79212.51762.46343.0965
H72.13353.47451.08844.61262.46343.79211.85475.57744.8110
H82.13262.74851.09064.09273.09652.51761.85474.81104.6973
H93.47452.13354.61261.08843.79212.46345.57744.81101.8547
H102.74852.13264.09271.09062.51763.09654.81104.69731.8547

picture of 1,3-Butadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.819 C1 C2 H6 116.558
C1 C3 H7 121.793 C1 C3 H8 121.526
C2 C1 C3 123.819 C2 C1 H5 116.558
C2 C4 H9 121.793 C2 C4 H10 121.526
C3 C1 H5 119.623 C4 C2 H6 119.623
H7 C3 H8 116.682 H9 C4 H10 116.682
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability