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

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-227.783133
Energy at 298.15K-227.786536
Nuclear repulsion energy170.264857
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/STO-3G
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 3558 2905 0.00      
2 A 2893 2362 0.00      
3 A 1715 1401 0.00      
4 A 1400 1143 0.00      
5 A 611 499 0.00      
6 A 1 1 0.00      
7 A 3558 2905 1.40      
8 A 2769 2261 5.81      
9 A 1708 1394 39.35      
10 A 1076 878 11.25      
11 A 3730 3046 1.06      
11 A 3730 3046 1.06      
12 A 1800 1470 7.84      
12 A 1800 1470 7.84      
13 A 1258 1027 4.79      
13 A 1258 1027 4.79      
14 A 472 386 0.81      
14 A 472 386 0.81      
15 A 115 94 2.32      
15 A 115 94 2.32      
16 A 3730 3046 0.00      
16 A 3730 3046 0.00      
17 A 1800 1470 0.00      
17 A 1800 1470 0.00      
18 A 1255 1025 0.00      
18 A 1255 1025 0.00      
19 A 695 567 0.00      
19 A 695 567 0.00      
20 A 303 248 0.00      
20 A 303 248 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24802.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 20251.2 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/STO-3G
ABC
2.68205 0.03699 0.03699

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.703
C2 0.000 0.000 -0.703
C3 0.000 0.000 1.879
C4 0.000 0.000 -1.879
C5 0.000 0.000 3.362
C6 0.000 0.000 -3.362
H7 0.000 1.020 3.744
H8 -0.883 -0.510 3.744
H9 0.883 -0.510 3.744
H10 0.000 1.020 -3.744
H11 0.883 -0.510 -3.744
H12 -0.883 -0.510 -3.744

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.40521.17642.58162.65914.06433.20743.20743.20744.56174.56174.5617
C21.40522.58161.17644.06432.65914.56174.56174.56173.20743.20743.2074
C31.17642.58163.75791.48275.24062.12522.12522.12525.71435.71435.7143
C42.58161.17643.75795.24061.48275.71435.71435.71432.12522.12522.1252
C52.65914.06431.48275.24066.72341.08871.08871.08877.17817.17817.1781
C64.06432.65915.24061.48276.72347.17817.17817.17811.08871.08871.0887
H73.20744.56172.12525.71431.08877.17811.76591.76597.48747.69287.6928
H83.20744.56172.12525.71431.08877.17811.76591.76597.69287.69287.4874
H93.20744.56172.12525.71431.08877.17811.76591.76597.69287.48747.6928
H104.56173.20745.71432.12527.17811.08877.48747.69287.69281.76591.7659
H114.56173.20745.71432.12527.17811.08877.69287.69287.48741.76591.7659
H124.56173.20745.71432.12527.17811.08877.69287.48747.69281.76591.7659

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 110.540 C3 C5 H8 110.540
C3 C5 H9 110.540 C4 C6 H10 110.540
C4 C6 H11 110.540 C4 C6 H12 110.540
H7 C5 H8 108.382 H7 C5 H9 108.382
H8 C5 H9 108.382 H10 C6 H11 108.382
H10 C6 H12 108.382 H11 C6 H12 108.382
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability