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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-231.477930
Energy at 298.15K-231.481524
HF Energy-230.610974
Nuclear repulsion energy172.658691
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 CCSD(T)/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 3264 3195        
2 Ag 3175 3108        
3 Ag 3159 3092        
4 Ag 2250 2202        
5 Ag 1637 1602        
6 Ag 1424 1393        
7 Ag 1305 1277        
8 Ag 1071 1048        
9 Ag 707 692        
10 Ag 495 485        
11 Ag 200 196        
12 Au 978 957        
13 Au 903 884        
14 Au 652 638        
15 Au 173 169        
16 Au 40 39        
17 Bg 975 954        
18 Bg 905 885        
19 Bg 642 629        
20 Bg 310 303        
21 Bu 3264 3195        
22 Bu 3175 3107        
23 Bu 3159 3092        
24 Bu 1663 1628        
25 Bu 1445 1414        
26 Bu 1301 1274        
27 Bu 1201 1176        
28 Bu 1005 984        
29 Bu 515 504        
30 Bu 105 103        

Unscaled Zero Point Vibrational Energy (zpe) 20549.0 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 20113.4 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 CCSD(T)/cc-pVDZ
ABC
0.83626 0.04436 0.04212

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/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 2.062 0.000
C4 0.000 -2.062 0.000
C5 1.134 2.811 0.000
C6 -1.134 -2.811 0.000
H7 -0.983 2.554 0.000
H8 0.983 -2.554 0.000
H9 2.127 2.344 0.000
H10 1.079 3.907 0.000
H11 -2.127 -2.344 0.000
H12 -1.079 -3.907 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23661.44332.67992.46923.61252.17093.32092.73963.46133.64744.6523
C21.23662.67991.44333.61252.46923.32092.17093.64744.65232.73963.4613
C31.44332.67994.12321.35995.00341.09964.71892.14612.13784.89286.0655
C42.67991.44334.12325.00341.35994.71891.09964.89286.06552.14612.1378
C52.46923.61251.35995.00346.06352.13345.36731.09731.09706.10117.0739
C63.61252.46925.00341.35996.06355.36732.13346.10117.07391.09731.0970
H72.17093.32091.09964.71892.13345.36735.47303.11772.46685.03006.4616
H83.32092.17094.71891.09965.36732.13345.47305.03006.46163.11772.4668
H92.73963.64742.14614.89281.09736.10113.11775.03001.88186.33167.0259
H103.46134.65232.13786.06551.09707.07392.46686.46161.88187.02598.1068
H113.64742.73964.89282.14616.10111.09735.03003.11776.33167.02591.8818
H124.65233.46136.06552.13787.07391.09706.46162.46687.02598.10681.8818

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 123.466
C1 C3 H7 116.587 C2 C1 C3 180.000
C2 C4 C6 123.466 C2 C4 H8 116.587
C3 C5 H9 121.345 C3 C5 H10 120.569
C4 C6 H11 121.345 C4 C6 H12 120.569
C5 C3 H7 119.948 C6 C4 H8 119.948
H9 C5 H10 118.087 H11 C6 H12 118.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability