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All results from a given calculation for C6H6 (2,4-Hexadiyne)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-230.869317
Energy at 298.15K-230.872711
Nuclear repulsion energy169.915265
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3035 2928 0.00      
2 A 2408 2323 0.00      
3 A 1468 1416 0.00      
4 A 1279 1234 0.00      
5 A 554 535 0.00      
6 A 39 38 0.00      
7 A 3034 2928 42.80      
8 A 2289 2208 3.54      
9 A 1465 1413 5.29      
10 A 933 901 0.10      
11 A 3090 2982 16.93      
11 A 3090 2982 16.93      
12 A 1545 1490 17.20      
12 A 1545 1490 17.20      
13 A 1099 1061 11.10      
13 A 1099 1061 11.10      
14 A 411 396 7.70      
14 A 411 396 7.70      
15 A 94 91 6.48      
15 A 94 91 6.48      
16 A 3091 2982 0.00      
16 A 3091 2982 0.00      
17 A 1545 1490 0.00      
17 A 1545 1490 0.00      
18 A 1096 1057 0.00      
18 A 1096 1057 0.00      
19 A 687 663 0.00      
19 A 687 663 0.00      
20 A 254 245 0.00      
20 A 254 245 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21161.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 20418.7 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 B3LYP/3-21G
ABC
2.64915 0.03702 0.03702

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.681
C2 0.000 0.000 -0.681
C3 0.000 0.000 1.894
C4 0.000 0.000 -1.894
C5 0.000 0.000 3.355
C6 0.000 0.000 -3.355
H7 0.000 1.026 3.745
H8 -0.888 -0.513 3.745
H9 0.888 -0.513 3.745
H10 0.000 1.026 -3.745
H11 0.888 -0.513 -3.745
H12 -0.888 -0.513 -3.745

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.36151.21372.57522.67444.03593.23153.23153.23154.54324.54324.5432
C21.36152.57521.21374.03592.67444.54324.54324.54323.23153.23153.2315
C31.21372.57523.78901.46075.24962.11592.11592.11595.73215.73215.7321
C42.57521.21373.78905.24961.46075.73215.73215.73212.11592.11592.1159
C52.67444.03591.46075.24966.71031.09741.09741.09747.17407.17407.1740
C64.03592.67445.24961.46076.71037.17407.17407.17401.09741.09741.0974
H73.23154.54322.11595.73211.09747.17401.77681.77687.49027.69807.6980
H83.23154.54322.11595.73211.09747.17401.77681.77687.69807.69807.4902
H93.23154.54322.11595.73211.09747.17401.77681.77687.69807.49027.6980
H104.54323.23155.73212.11597.17401.09747.49027.69807.69801.77681.7768
H114.54323.23155.73212.11597.17401.09747.69807.69807.49021.77681.7768
H124.54323.23155.73212.11597.17401.09747.69807.49027.69801.77681.7768

picture of 2,4-Hexadiyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 180.000
C2 C1 C3 180.000 C2 C4 C6 180.000
C3 C5 H7 110.811 C3 C5 H8 110.811
C3 C5 H9 110.811 C4 C6 H10 110.811
C4 C6 H11 110.811 C4 C6 H12 110.811
H7 C5 H8 108.098 H7 C5 H9 108.098
H8 C5 H9 108.098 H10 C6 H11 108.098
H10 C6 H12 108.098 H11 C6 H12 108.098
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.344     -0.120
2 C -0.344     -0.120
3 C 0.208     0.064
4 C 0.208     0.064
5 C -0.567     -0.435
6 C -0.567     -0.435
7 H 0.234     0.163
8 H 0.234     0.164
9 H 0.234     0.164
10 H 0.234     0.163
11 H 0.234     0.164
12 H 0.234     0.164


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP -0.000 -0.006 0.000 0.006


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.553 0.000 0.000
y 0.000 -36.553 0.000
z 0.000 0.000 -18.661
Traceless
 xyz
x -8.946 0.000 0.000
y 0.000 -8.946 0.000
z 0.000 0.000 17.891
Polar
3z2-r235.783
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.233 0.000 0.000
y 0.000 4.233 0.000
z 0.000 0.000 19.454


<r2> (average value of r2) Å2
<r2> 293.289
(<r2>)1/2 17.126