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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-231.096679
Energy at 298.15K 
HF Energy-230.510818
Nuclear repulsion energy172.324511
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 3217 3099 0.00      
2 Ag 3135 3021 0.00      
3 Ag 3122 3008 0.00      
4 Ag 2276 2193 0.00      
5 Ag 1656 1596 0.00      
6 Ag 1478 1424 0.00      
7 Ag 1354 1305 0.00      
8 Ag 1119 1078 0.00      
9 Ag 712 686 0.00      
10 Ag 530 511 0.00      
11 Ag 234 225 0.00      
12 Au 996 959 46.44      
13 Au 924 891 82.45      
14 Au 668 643 5.64      
15 Au 159 153 5.51      
16 Au 25 24 0.03      
17 Bg 994 958 0.00      
18 Bg 924 891 0.00      
19 Bg 634 610 0.00      
20 Bg 158i 152i 0.00      
21 Bu 3217 3099 41.59      
22 Bu 3135 3021 22.81      
23 Bu 3122 3008 19.28      
24 Bu 1675 1614 20.47      
25 Bu 1492 1438 3.61      
26 Bu 1354 1305 2.64      
27 Bu 1208 1164 23.30      
28 Bu 1023 985 0.36      
29 Bu 534 514 4.44      
30 Bu 108 104 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 20431.2 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 19687.5 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
0.85081 0.04391 0.04175

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 0.616 0.000
C2 0.000 -0.616 0.000
C3 0.000 2.068 0.000
C4 0.000 -2.068 0.000
C5 1.123 2.833 0.000
C6 -1.123 -2.833 0.000
H7 -0.982 2.554 0.000
H8 0.982 -2.554 0.000
H9 2.125 2.395 0.000
H10 1.063 3.924 0.000
H11 -2.125 -2.395 0.000
H12 -1.063 -3.924 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23281.45162.68442.48513.62772.17223.31892.77103.47383.68554.6627
C21.23282.68441.45163.62772.48513.31892.17223.68554.66272.77103.4738
C31.45162.68444.13601.35925.02811.09564.72512.15002.13844.94296.0851
C42.68441.45164.13605.02811.35924.72511.09564.94296.08512.15002.1384
C52.48513.62771.35925.02816.09532.12385.38881.09321.09226.15497.1015
C63.62772.48515.02811.35926.09535.38882.12386.15497.10151.09321.0922
H72.17223.31891.09564.72512.12385.38885.47243.11102.46115.07906.4780
H83.31892.17224.72511.09565.38882.12385.47245.07906.47803.11102.4611
H92.77103.68552.15004.94291.09326.15493.11105.07901.86156.40337.0770
H103.47384.66272.13846.08511.09227.10152.46116.47801.86157.07708.1299
H113.68552.77104.94292.15006.15491.09325.07903.11106.40337.07701.8615
H124.66273.47386.08512.13847.10151.09226.47802.46117.07708.12991.8615

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 124.255
C1 C3 H7 116.330 C2 C1 C3 180.000
C2 C4 C6 124.255 C2 C4 H8 116.330
C3 C5 H9 122.115 C3 C5 H10 121.078
C4 C6 H11 122.115 C4 C6 H12 121.078
C5 C3 H7 119.415 C6 C4 H8 119.415
H9 C5 H10 116.807 H11 C6 H12 116.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability