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

using model chemistry: QCISD(T)=FULL/cc-pVDZ

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)=FULL/cc-pVDZ
 hartrees
Energy at 0K-231.492625
Energy at 298.15K-231.496244
HF Energy-230.611331
Nuclear repulsion energy172.781235
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)=FULL/cc-pVDZ
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 3269 3135        
2 Ag 3180 3049        
3 Ag 3164 3034        
4 Ag 2252 2159        
5 Ag 1639 1572        
6 Ag 1425 1367        
7 Ag 1306 1252        
8 Ag 1071 1027        
9 Ag 708 679        
10 Ag 497 477        
11 Ag 201 193        
12 Au 980 940        
13 Au 906 869        
14 Au 654 627        
15 Au 174 167        
16 Au 40 39        
17 Bg 977 937        
18 Bg 907 869        
19 Bg 648 621        
20 Bg 320 307        
21 Bu 3269 3135        
22 Bu 3179 3049        
23 Bu 3164 3034        
24 Bu 1665 1597        
25 Bu 1447 1387        
26 Bu 1302 1249        
27 Bu 1203 1154        
28 Bu 1006 965        
29 Bu 515 494        
30 Bu 105 101        

Unscaled Zero Point Vibrational Energy (zpe) 20586.8 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 19742.7 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)=FULL/cc-pVDZ
ABC
0.83790 0.04442 0.04218

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.618 0.000
C2 0.000 -0.618 0.000
C3 0.000 2.060 0.000
C4 0.000 -2.060 0.000
C5 1.133 2.810 0.000
C6 -1.133 -2.810 0.000
H7 -0.983 2.551 0.000
H8 0.983 -2.551 0.000
H9 2.126 2.344 0.000
H10 1.077 3.905 0.000
H11 -2.126 -2.344 0.000
H12 -1.077 -3.905 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23591.44192.67782.46773.61042.16883.31822.73843.45883.64594.6492
C21.23592.67781.44193.61042.46773.31822.16883.64594.64922.73843.4588
C31.44192.67784.11961.35924.99991.09874.71482.14482.13654.89016.0610
C42.67781.44194.11964.99991.35924.71481.09874.89016.06102.14482.1365
C52.46773.61041.35924.99996.05992.13175.36351.09641.09626.09817.0693
C63.61042.46774.99991.35926.05995.36352.13176.09817.06931.09641.0962
H72.16883.31821.09874.71482.13175.36355.46823.11532.46475.02726.4568
H83.31822.16884.71481.09875.36352.13175.46825.02726.45683.11532.4647
H92.73843.64592.14484.89011.09646.09813.11535.02721.88016.32907.0220
H103.45884.64922.13656.06101.09627.06932.46476.45681.88017.02208.1012
H113.64592.73844.89012.14486.09811.09645.02723.11536.32907.02201.8801
H124.64923.45886.06102.13657.06931.09626.45682.46477.02208.10121.8801

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 123.498
C1 C3 H7 116.583 C2 C1 C3 180.000
C2 C4 C6 123.498 C2 C4 H8 116.583
C3 C5 H9 121.355 C3 C5 H10 120.570
C4 C6 H11 121.355 C4 C6 H12 120.570
C5 C3 H7 119.919 C6 C4 H8 119.919
H9 C5 H10 118.075 H11 C6 H12 118.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability