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

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-231.864339
Energy at 298.15K 
HF Energy-231.608526
Nuclear repulsion energy169.508796
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 B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3i 3i 0.00      
2 A1' 3073 2917 0.00      
3 A1' 2351 2232 0.00      
4 A1' 1461 1387 0.00      
5 A1' 1304 1238 0.00      
6 A1' 562 533 0.00      
7 A2 3073 2917 63.13      
8 A2 2247 2133 1.95      
9 A2 1454 1380 25.53      
10 A2 964 915 0.08      
11 E 3144 2984 0.00      
11 E 3144 2984 0.00      
12 E 1526 1448 0.00      
12 E 1526 1448 0.00      
13 E 1064 1010 0.00      
13 E 1064 1010 0.00      
14 E 508 482 0.00      
14 E 508 482 0.00      
15 E 200 189 0.00      
15 E 200 189 0.00      
16 E' 3144 2984 19.95      
16 E' 3144 2984 19.96      
17 E' 1526 1448 12.70      
17 E' 1526 1448 12.70      
18 E' 1069 1015 4.52      
18 E' 1069 1015 4.52      
19 E' 310 294 3.66      
19 E' 310 294 3.66      
20 E' 105 99 5.81      
20 E' 105 99 5.81      

Unscaled Zero Point Vibrational Energy (zpe) 20836.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 19777.9 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 B2PLYP/6-31G*
ABC
2.67175 0.03677 0.03677

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.685
C2 0.000 0.000 -0.685
C3 0.000 0.000 1.905
C4 0.000 0.000 -1.905
C5 0.000 0.000 3.364
C6 0.000 0.000 -3.364
H7 0.000 1.021 3.757
H8 -0.885 -0.511 3.757
H9 0.885 -0.511 3.757
H10 0.000 1.021 -3.757
H11 0.885 -0.511 -3.757
H12 -0.885 -0.511 -3.757

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.36981.21992.58972.67944.04923.23723.23723.23724.55764.55764.5576
C21.36982.58971.21994.04922.67944.55764.55764.55763.23723.23723.2372
C31.21992.58973.80971.45945.26912.11492.11492.11495.75305.75305.7530
C42.58971.21993.80975.26911.45945.75305.75305.75302.11492.11492.1149
C52.67944.04921.45945.26916.72851.09431.09431.09437.19397.19397.1939
C64.04922.67945.26911.45946.72857.19397.19397.19391.09431.09431.0943
H73.23724.55762.11495.75301.09437.19391.76931.76937.51347.71897.7189
H83.23724.55762.11495.75301.09437.19391.76931.76937.71897.71897.5134
H93.23724.55762.11495.75301.09437.19391.76931.76937.71897.51347.7189
H104.55763.23725.75302.11497.19391.09437.51347.71897.71891.76931.7693
H114.55763.23725.75302.11497.19391.09437.71897.71897.51341.76931.7693
H124.55763.23725.75302.11497.19391.09437.71897.51347.71891.76931.7693

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 111.016 C3 C5 H8 111.016
C3 C5 H9 111.016 C4 C6 H10 111.016
C4 C6 H11 111.016 C4 C6 H12 111.016
H7 C5 H8 107.883 H7 C5 H9 107.883
H8 C5 H9 107.883 H10 C6 H11 107.883
H10 C6 H12 107.883 H11 C6 H12 107.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.566      
2 C 0.566      
3 C -0.635      
4 C -0.635      
5 C -0.516      
6 C -0.516      
7 H 0.195      
8 H 0.195      
9 H 0.195      
10 H 0.195      
11 H 0.195      
12 H 0.195      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.850 0.000 0.000
y 0.000 4.850 0.000
z 0.000 0.000 19.376


<r2> (average value of r2) Å2
<r2> 295.005
(<r2>)1/2 17.176