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All results from a given calculation for CH2CCHCH3 (1,2-Butadiene)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-154.939118
Energy at 298.15K-154.944377
Nuclear repulsion energy103.041642
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 HF/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' 3285 2984 17.13      
2 A' 3274 2974 7.16      
3 A' 3251 2953 16.76      
4 A' 3162 2872 49.85      
5 A' 2201 1999 60.24      
6 A' 1622 1474 2.76      
7 A' 1592 1447 6.27      
8 A' 1533 1393 4.11      
9 A' 1469 1334 13.20      
10 A' 1222 1110 0.04      
11 A' 1183 1075 3.55      
12 A' 997 906 57.66      
13 A' 932 847 2.80      
14 A' 620 563 11.38      
15 A' 232 211 1.48      
16 A" 3353 3046 5.69      
17 A" 3211 2917 37.36      
18 A" 1601 1455 6.32      
19 A" 1161 1055 2.48      
20 A" 1113 1011 1.19      
21 A" 980 890 18.67      
22 A" 591 537 3.09      
23 A" 377 342 9.55      
24 A" 180 164 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 19570.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 17779.4 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 HF/6-311G**
ABC
1.16162 0.14151 0.13261

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.677 1.815 0.000
C2 0.000 0.710 0.000
C3 0.676 -0.394 0.000
C4 0.070 -1.775 0.000
H5 -0.967 2.289 0.922
H6 -0.967 2.289 -0.922
H7 1.753 -0.325 0.000
H8 -1.012 -1.726 0.000
H9 0.390 -2.331 -0.876
H10 0.390 -2.331 0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.29572.59043.66591.07651.07653.23803.55624.36974.3697
C21.29571.29472.48542.06862.06862.03602.63773.18883.1888
C32.59041.29471.50793.27883.27881.07922.15072.14552.1455
C43.66592.48541.50794.29404.29402.22171.08301.08661.0866
H51.07652.06863.27884.29401.84333.88384.11985.14044.8159
H61.07652.06863.27884.29401.84333.88384.11984.81595.1404
H73.23802.03601.07922.22173.88383.88383.10022.57922.5792
H83.55622.63772.15071.08304.11984.11983.10021.76081.7608
H94.36973.18882.14551.08665.14044.81592.57921.76081.7529
H104.36973.18882.14551.08664.81595.14042.57921.76081.7529

picture of 1,2-Butadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.988 C2 C1 H5 121.112
C2 C1 H6 121.112 C2 C3 C4 124.775
C2 C3 H7 117.826 C3 C4 H8 111.155
C3 C4 H9 110.517 C3 C4 H10 110.517
C4 C3 H7 117.400 H5 C1 H6 117.775
H8 C4 H9 108.508 H8 C4 H10 108.508
H9 C4 H10 107.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 C -0.030      
3 C -0.208      
4 C -0.207      
5 H 0.128      
6 H 0.128      
7 H 0.121      
8 H 0.104      
9 H 0.100      
10 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.071 -0.409 0.000 0.415
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.041 -1.861 0.000
y -1.861 -23.465 0.000
z 0.000 0.000 -25.871
Traceless
 xyz
x -0.373 -1.861 0.000
y -1.861 1.991 0.000
z 0.000 0.000 -1.618
Polar
3z2-r2-3.236
x2-y2-1.576
xy-1.861
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.905 -2.613 0.000
y -2.613 9.951 0.000
z 0.000 0.000 4.375


<r2> (average value of r2) Å2
<r2> 97.557
(<r2>)1/2 9.877