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All results from a given calculation for C6H6 (Hexa-1,5-diene-3-yne)

using model chemistry: QCISD(T)/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-231.508350
Energy at 298.15K-231.511902
HF Energy-230.636961
Nuclear repulsion energy173.744341
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 QCISD(T)/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3231 3111        
2 Ag 3145 3028        
3 Ag 3133 3017        
4 Ag 2252 2168        
5 Ag 1634 1573        
6 Ag 1437 1383        
7 Ag 1319 1270        
8 Ag 1089 1048        
9 Ag 709 683        
10 Ag 516 496        
11 Ag 217 209        
12 Au 971 935        
13 Au 884 852        
14 Au 652 628        
15 Au 173 166        
16 Au 35 34        
17 Bg 968 932        
18 Bg 885 852        
19 Bg 632 609        
20 Bg 265 255        
21 Bu 3231 3111        
22 Bu 3144 3027        
23 Bu 3133 3017        
24 Bu 1658 1597        
25 Bu 1456 1402        
26 Bu 1316 1267        
27 Bu 1208 1163        
28 Bu 1013 976        
29 Bu 524 505        
30 Bu 108 104        

Unscaled Zero Point Vibrational Energy (zpe) 20469.0 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 19707.6 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 QCISD(T)/6-311G*
ABC
0.84878 0.04489 0.04263

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.612 0.000
C2 0.000 -0.612 0.000
C3 0.000 2.048 0.000
C4 0.000 -2.048 0.000
C5 1.127 2.796 0.000
C6 -1.127 -2.796 0.000
H7 -0.976 2.538 0.000
H8 0.976 -2.538 0.000
H9 2.115 2.339 0.000
H10 1.073 3.883 0.000
H11 -2.115 -2.339 0.000
H12 -1.073 -3.883 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22431.43602.66032.45733.58962.15943.29832.73013.44263.63054.6218
C21.22432.66031.43603.58962.45733.29832.15943.63054.62182.73013.4426
C31.43602.66034.09631.35224.97351.09234.68932.13472.12584.87016.0277
C42.66031.43604.09634.97351.35224.68931.09234.87016.02772.13472.1258
C52.45733.58961.35224.97356.02892.11845.33651.08891.08866.07237.0322
C63.58962.45734.97351.35226.02895.33652.11846.07237.03221.08891.0886
H72.15943.29831.09234.68932.11845.33655.43923.09742.45105.00836.4224
H83.29832.15944.68931.09235.33652.11845.43925.00836.42243.09742.4510
H92.73013.63052.13474.87011.08896.07233.09745.00831.86316.30636.9911
H103.44264.62182.12586.02771.08867.03222.45106.42241.86316.99118.0576
H113.63052.73014.87012.13476.07231.08895.00833.09746.30636.99111.8631
H124.62183.44266.02772.12587.03221.08866.42242.45106.99118.05761.8631

picture of Hexa-1,5-diene-3-yne 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 123.579
C1 C3 H7 116.665 C2 C1 C3 180.000
C2 C4 C6 123.579 C2 C4 H8 116.665
C3 C5 H9 121.590 C3 C5 H10 120.755
C4 C6 H11 121.590 C4 C6 H12 120.755
C5 C3 H7 119.756 C6 C4 H8 119.756
H9 C5 H10 117.656 H11 C6 H12 117.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability