return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-231.969658
Energy at 298.15K-231.973266
HF Energy-231.695562
Nuclear repulsion energy175.368426
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 B2PLYP/TZVP
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 3273 3124 0.00      
2 Ag 3180 3035 0.00      
3 Ag 3172 3027 0.00      
4 Ag 2273 2170 0.00      
5 Ag 1650 1575 0.00      
6 Ag 1455 1388 0.00      
7 Ag 1336 1275 0.00      
8 Ag 1098 1048 0.00      
9 Ag 723 690 0.00      
10 Ag 528 504 0.00      
11 Ag 221 211 0.00      
12 Au 1003 958 48.65      
13 Au 922 880 79.97      
14 Au 663 632 12.07      
15 Au 165 158 7.46      
16 Au 38 36 0.07      
17 Bg 1000 954 0.00      
18 Bg 923 881 0.00      
19 Bg 648 619 0.00      
20 Bg 234 224 0.00      
21 Bu 3273 3124 13.98      
22 Bu 3180 3035 10.81      
23 Bu 3172 3027 14.89      
24 Bu 1676 1600 37.27      
25 Bu 1475 1407 5.22      
26 Bu 1334 1273 2.78      
27 Bu 1223 1167 19.91      
28 Bu 1026 979 0.42      
29 Bu 535 510 10.05      
30 Bu 108 104 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 20752.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19806.5 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 B2PLYP/TZVP
ABC
0.87487 0.04564 0.04338

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.607 0.000
C2 0.000 -0.607 0.000
C3 0.000 2.026 0.000
C4 0.000 -2.026 0.000
C5 1.107 2.779 0.000
C6 -1.107 -2.779 0.000
H7 -0.972 2.508 0.000
H8 0.972 -2.508 0.000
H9 2.093 2.335 0.000
H10 1.042 3.857 0.000
H11 -2.093 -2.335 0.000
H12 -1.042 -3.857 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21471.41832.63312.43723.56242.13453.26332.71393.41283.61074.5846
C21.21472.63311.41833.56242.43723.26332.13453.61074.58462.71393.4128
C31.41832.63314.05141.33904.93021.08494.63652.11592.10724.83685.9745
C42.63311.41834.05144.93021.33904.63651.08494.83685.97452.11592.1072
C52.43723.56241.33904.93025.98212.09675.28811.08121.08076.03236.9751
C63.56242.43724.93021.33905.98215.28812.09676.03236.97511.08121.0807
H72.13453.26331.08494.63652.09675.28815.37913.06992.42414.97076.3655
H83.26332.13454.63651.08495.28812.09675.37914.97076.36553.06992.4241
H92.71393.61072.11594.83681.08126.03233.06994.97071.85036.27136.9404
H103.41284.58462.10725.97451.08076.97512.42416.36551.85036.94047.9910
H113.61072.71394.83682.11596.03231.08124.97073.06996.27136.94041.8503
H124.58463.41285.97452.10726.97511.08076.36552.42416.94047.99101.8503

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 124.210
C1 C3 H7 116.388 C2 C1 C3 180.000
C2 C4 C6 124.210 C2 C4 H8 116.388
C3 C5 H9 121.553 C3 C5 H10 120.742
C4 C6 H11 121.553 C4 C6 H12 120.742
C5 C3 H7 119.402 C6 C4 H8 119.402
H9 C5 H10 117.706 H11 C6 H12 117.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.073      
2 C 0.073      
3 C -0.220      
4 C -0.220      
5 C -0.233      
6 C -0.233      
7 H 0.137      
8 H 0.137      
9 H 0.127      
10 H 0.115      
11 H 0.127      
12 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.426 0.419 0.000
y 0.419 -28.224 0.000
z 0.000 0.000 -40.348
Traceless
 xyz
x 0.860 0.419 0.000
y 0.419 8.663 0.000
z 0.000 0.000 -9.523
Polar
3z2-r2-19.045
x2-y2-5.202
xy0.419
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.916 4.315 0.000
y 4.315 19.668 0.000
z 0.000 0.000 5.539


<r2> (average value of r2) Å2
<r2> 248.319
(<r2>)1/2 15.758