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

using model chemistry: QCISD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-231.393595
Energy at 298.15K-231.397309
HF Energy-230.594634
Nuclear repulsion energy174.201353
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/6-31G*
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 3275 3119 0.00      
2 Ag 3193 3041 0.00      
3 Ag 3182 3030 0.00      
4 Ag 2336 2225 0.00      
5 Ag 1695 1614 0.00      
6 Ag 1470 1400 0.00      
7 Ag 1351 1286 0.00      
8 Ag 1111 1058 0.00      
9 Ag 727 692 0.00      
10 Ag 530 505 0.00      
11 Ag 226 215 0.00      
12 Au 1006 958 46.37      
13 Au 931 887 68.72      
14 Au 677 645 7.56      
15 Au 181 173 5.32      
16 Au 34 32 0.06      
17 Bg 1004 956 0.00      
18 Bg 932 888 0.00      
19 Bg 668 636 0.00      
20 Bg 309 294 0.00      
21 Bu 3275 3119 23.40      
22 Bu 3193 3041 20.23      
23 Bu 3182 3030 12.62      
24 Bu 1718 1636 19.93      
25 Bu 1487 1416 4.90      
26 Bu 1348 1284 6.13      
27 Bu 1231 1173 21.42      
28 Bu 1030 981 0.12      
29 Bu 531 506 6.84      
30 Bu 111 106 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 20972.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 19972.1 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/6-31G*
ABC
0.85426 0.04510 0.04284

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.609 0.000
C2 0.000 -0.609 0.000
C3 0.000 2.046 0.000
C4 0.000 -2.046 0.000
C5 1.121 2.789 0.000
C6 -1.121 -2.789 0.000
H7 -0.975 2.535 0.000
H8 0.975 -2.535 0.000
H9 2.109 2.335 0.000
H10 1.071 3.875 0.000
H11 -2.109 -2.335 0.000
H12 -1.071 -3.875 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21901.43642.65532.45033.57802.15793.29172.72463.43633.62154.6103
C21.21902.65531.43643.57802.45033.29172.15793.62154.61032.72463.4363
C31.43642.65534.09171.34434.96251.09064.68302.12862.11934.86166.0166
C42.65531.43644.09174.96251.34434.68301.09064.86166.01662.12862.1193
C52.45033.57801.34434.96256.01052.11095.32501.08761.08736.05607.0143
C63.57802.45034.96251.34436.01055.32502.11096.05607.01431.08761.0873
H72.15793.29171.09064.68302.11095.32505.43123.09042.44574.99946.4099
H83.29172.15794.68301.09065.32502.11095.43124.99946.40993.09042.4457
H92.72463.62152.12864.86161.08766.05603.09044.99941.85736.29216.9761
H103.43634.61032.11936.01661.08737.01432.44576.40991.85736.97618.0399
H113.62152.72464.86162.12866.05601.08764.99943.09046.29216.97611.8573
H124.61033.43636.01662.11937.01431.08736.40992.44576.97618.03991.8573

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 123.535
C1 C3 H7 116.621 C2 C1 C3 180.000
C2 C4 C6 123.535 C2 C4 H8 116.621
C3 C5 H9 121.795 C3 C5 H10 120.913
C4 C6 H11 121.795 C4 C6 H12 120.913
C5 C3 H7 119.844 C6 C4 H8 119.844
H9 C5 H10 117.292 H11 C6 H12 117.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability