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

using model chemistry: HSEh1PBE/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 HSEh1PBE/3-21G
 hartrees
Energy at 0K-230.593545
Energy at 298.15K-230.597010
HF Energy-230.593545
Nuclear repulsion energy170.217595
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 HSEh1PBE/3-21G
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' 3055 2943 0.00      
2 A1' 2431 2342 0.00      
3 A1' 1464 1410 0.00      
4 A1' 1304 1256 0.00      
5 A1' 564 543 0.00      
6 A1" 11 11 0.00      
7 A2" 3055 2943 30.70      
8 A2" 2305 2221 6.52      
9 A2" 1461 1408 0.72      
10 A2" 956 921 0.62      
11 E' 3124 3009 10.27      
11 E' 3124 3009 10.28      
12 E' 1540 1483 21.22      
12 E' 1540 1483 21.22      
13 E' 1097 1057 14.47      
13 E' 1097 1057 14.47      
14 E' 436 420 9.04      
14 E' 436 420 9.04      
15 E' 95 92 7.30      
15 E' 95 92 7.30      
16 E" 3124 3009 0.00      
16 E" 3124 3009 0.00      
17 E" 1540 1483 0.00      
17 E" 1540 1483 0.00      
18 E" 1095 1055 0.00      
18 E" 1095 1055 0.00      
19 E" 739 712 0.00      
19 E" 739 712 0.00      
20 E" 261 252 0.00      
20 E" 261 252 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21354.3 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 20570.6 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 HSEh1PBE/3-21G
ABC
2.64907 0.03716 0.03716

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
C2 0.000 0.000 -0.680
C3 0.000 0.000 1.893
C4 0.000 0.000 -1.893
C5 0.000 0.000 3.347
C6 0.000 0.000 -3.347
H7 0.000 1.026 3.737
H8 -0.888 -0.513 3.737
H9 0.888 -0.513 3.737
H10 0.000 1.026 -3.737
H11 0.888 -0.513 -3.737
H12 -0.888 -0.513 -3.737

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.35941.21372.57302.66754.02683.22463.22463.22464.53414.53414.5341
C21.35942.57301.21374.02682.66754.53414.53414.53413.22463.22463.2246
C31.21372.57303.78671.45385.24052.10972.10972.10975.72285.72285.7228
C42.57301.21373.78675.24051.45385.72285.72285.72282.10972.10972.1097
C52.66754.02681.45385.24056.69431.09741.09741.09747.15787.15787.1578
C64.02682.66755.24051.45386.69437.15787.15787.15781.09741.09741.0974
H73.22464.53412.10975.72281.09747.15781.77681.77687.47367.68197.6819
H83.22464.53412.10975.72281.09747.15781.77681.77687.68197.68197.4736
H93.22464.53412.10975.72281.09747.15781.77681.77687.68197.47367.6819
H104.53413.22465.72282.10977.15781.09747.47367.68197.68191.77681.7768
H114.53413.22465.72282.10977.15781.09747.68197.68197.47361.77681.7768
H124.53413.22465.72282.10977.15781.09747.68197.47367.68191.77681.7768

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 110.798 C3 C5 H8 110.798
C3 C5 H9 110.798 C4 C6 H10 110.798
C4 C6 H11 110.798 C4 C6 H12 110.798
H7 C5 H8 108.112 H7 C5 H9 108.112
H8 C5 H9 108.112 H10 C6 H11 108.112
H10 C6 H12 108.112 H11 C6 H12 108.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability