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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-232.174637
Energy at 298.15K 
HF Energy-232.174637
Nuclear repulsion energy170.172668
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 TPSSh/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 3020 2914 0.00      
2 A1' 2367 2284 0.00      
3 A1' 1418 1368 0.00      
4 A1' 1300 1254 0.00      
5 A1' 561 542 0.00      
6 A1" 17i 16i 0.00      
7 A2" 3019 2913 78.82      
8 A2" 2262 2183 4.60      
9 A2" 1410 1361 34.14      
10 A2" 956 922 1.94      
11 E' 3085 2977 20.26      
11 E' 3085 2977 20.26      
12 E' 1484 1432 10.75      
12 E' 1484 1432 10.74      
13 E' 1048 1011 2.42      
13 E' 1048 1011 2.42      
14 E' 367 354 3.96      
14 E' 367 354 3.96      
15 E' 100 96 6.04      
15 E' 100 96 6.04      
16 E" 3085 2977 0.00      
16 E" 3085 2977 0.00      
17 E" 1484 1432 0.00      
17 E" 1484 1432 0.00      
18 E" 1042 1006 0.00      
18 E" 1042 1006 0.00      
19 E" 516 498 0.00      
19 E" 516 498 0.00      
20 E" 246 237 0.00      
20 E" 246 237 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20604.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19883.0 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 TPSSh/6-31G(2df,p)
ABC
2.66428 0.03712 0.03712

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.683
C2 0.000 0.000 -0.683
C3 0.000 0.000 1.895
C4 0.000 0.000 -1.895
C5 0.000 0.000 3.353
C6 0.000 0.000 -3.353
H7 0.000 1.024 3.741
H8 -0.887 -0.512 3.741
H9 0.887 -0.512 3.741
H10 0.000 1.024 -3.741
H11 0.887 -0.512 -3.741
H12 -0.887 -0.512 -3.741

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.36531.21282.57812.67034.03563.22483.22483.22484.54024.54024.5402
C21.36532.57811.21284.03562.67034.54024.54024.54023.22483.22483.2248
C31.21282.57813.79081.45755.24842.11022.11022.11025.72835.72835.7283
C42.57811.21283.79085.24841.45755.72835.72835.72832.11022.11022.1102
C52.67034.03561.45755.24846.70591.09491.09491.09497.16707.16707.1670
C64.03562.67035.24841.45756.70597.16707.16707.16701.09491.09491.0949
H73.22484.54022.11025.72831.09497.16701.77351.77357.48117.68857.6885
H83.22484.54022.11025.72831.09497.16701.77351.77357.68857.68857.4811
H93.22484.54022.11025.72831.09497.16701.77351.77357.68857.48117.6885
H104.54023.22485.72832.11027.16701.09497.48117.68857.68851.77351.7735
H114.54023.22485.72832.11027.16701.09497.68857.68857.48111.77351.7735
H124.54023.22485.72832.11027.16701.09497.68857.48117.68851.77351.7735

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 110.734 C3 C5 H8 110.734
C3 C5 H9 110.734 C4 C6 H10 110.734
C4 C6 H11 110.734 C4 C6 H12 110.734
H7 C5 H8 108.179 H7 C5 H9 108.179
H8 C5 H9 108.179 H10 C6 H11 108.179
H10 C6 H12 108.179 H11 C6 H12 108.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability