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: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-231.841702
Energy at 298.15K-231.845401
HF Energy-231.841702
Nuclear repulsion energy173.640893
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 PBEPBE/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 3193 3174 0.00      
2 Ag 3089 3071 0.00      
3 Ag 3067 3049 0.00      
4 Ag 2234 2221 0.00      
5 Ag 1593 1584 0.00      
6 Ag 1367 1359 0.00      
7 Ag 1262 1255 0.00      
8 Ag 1038 1032 0.00      
9 Ag 711 706 0.00      
10 Ag 500 497 0.00      
11 Ag 204 203 0.00      
12 Au 964 959 34.33      
13 Au 884 879 53.94      
14 Au 658 654 9.21      
15 Au 179 178 4.94      
16 Au 57 57 0.11      
17 Bg 958 952 0.00      
18 Bg 886 880 0.00      
19 Bg 680 676 0.00      
20 Bg 374 372 0.00      
21 Bu 3193 3174 11.00      
22 Bu 3089 3071 3.87      
23 Bu 3067 3049 20.94      
24 Bu 1635 1625 30.68      
25 Bu 1396 1387 4.51      
26 Bu 1262 1255 3.45      
27 Bu 1197 1190 11.30      
28 Bu 983 978 2.73      
29 Bu 509 506 10.00      
30 Bu 105 105 2.14      

Unscaled Zero Point Vibrational Energy (zpe) 20164.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 20047.9 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 PBEPBE/cc-pVDZ
ABC
0.86136 0.04481 0.04260

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 2.035 0.000
C4 0.000 -2.035 0.000
C5 1.114 2.809 0.000
C6 -1.114 -2.809 0.000
H7 -0.992 2.522 0.000
H8 0.992 -2.522 0.000
H9 2.120 2.365 0.000
H10 1.034 3.906 0.000
H11 -2.120 -2.365 0.000
H12 -1.034 -3.906 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23531.41752.65282.45833.60332.14683.29222.74673.44673.65884.6399
C21.23532.65281.41753.60332.45833.29222.14683.65884.63992.74673.4467
C31.41752.65284.07031.35634.97071.10474.66342.14502.13724.88376.0300
C42.65281.41754.07034.97071.35634.66341.10474.88376.03002.14502.1372
C52.45833.60331.35634.97076.04392.12535.33211.09961.09936.10117.0499
C63.60332.45834.97071.35636.04395.33212.12536.10117.04991.09961.0993
H72.14683.29221.10474.66342.12535.33215.41923.11542.45365.01466.4272
H83.29222.14684.66341.10475.33212.12535.41925.01466.42723.11542.4536
H92.74673.65882.14504.88371.09966.10113.11545.01461.88486.35117.0186
H103.44674.63992.13726.03001.09937.04992.45366.42721.88487.01868.0803
H113.65882.74674.88372.14506.10111.09965.01463.11546.35117.01861.8848
H124.63993.44676.03002.13727.04991.09936.42722.45367.01868.08031.8848

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 124.798
C1 C3 H7 116.120 C2 C1 C3 180.000
C2 C4 C6 124.798 C2 C4 H8 116.120
C3 C5 H9 121.357 C3 C5 H10 120.640
C4 C6 H11 121.357 C4 C6 H12 120.640
C5 C3 H7 119.082 C6 C4 H8 119.082
H9 C5 H10 118.003 H11 C6 H12 118.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.100      
2 C 0.100      
3 C -0.218      
4 C -0.218      
5 C 0.033      
6 C 0.033      
7 H 0.024      
8 H 0.024      
9 H 0.026      
10 H 0.035      
11 H 0.026      
12 H 0.035      


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 -33.105 0.370 0.000
y 0.370 -27.567 0.000
z 0.000 0.000 -39.186
Traceless
 xyz
x 0.272 0.370 0.000
y 0.370 8.578 0.000
z 0.000 0.000 -8.850
Polar
3z2-r2-17.700
x2-y2-5.537
xy0.370
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.772 4.792 0.000
y 4.792 22.202 0.000
z 0.000 0.000 3.818


<r2> (average value of r2) Å2
<r2> 252.154
(<r2>)1/2 15.879