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-pVTZ

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-pVTZ
 hartrees
Energy at 0K-231.910504
Energy at 298.15K-231.914242
HF Energy-231.910504
Nuclear repulsion energy174.758967
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-pVTZ
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 3174 3152 0.00      
2 Ag 3082 3061 0.00      
3 Ag 3056 3035 0.00      
4 Ag 2221 2206 0.00      
5 Ag 1587 1576 0.00      
6 Ag 1389 1380 0.00      
7 Ag 1277 1268 0.00      
8 Ag 1051 1044 0.00      
9 Ag 709 704 0.00      
10 Ag 518 515 0.00      
11 Ag 217 215 0.00      
12 Au 970 964 35.42      
13 Au 897 891 72.75      
14 Au 660 656 10.50      
15 Au 173 172 6.23      
16 Au 52 52 0.12      
17 Bg 964 957 0.00      
18 Bg 898 892 0.00      
19 Bg 681 676 0.00      
20 Bg 365 362 0.00      
21 Bu 3174 3152 12.53      
22 Bu 3082 3061 5.57      
23 Bu 3056 3035 20.01      
24 Bu 1623 1612 35.32      
25 Bu 1414 1404 5.54      
26 Bu 1275 1267 1.83      
27 Bu 1197 1188 12.26      
28 Bu 990 983 1.81      
29 Bu 514 511 11.47      
30 Bu 106 106 2.39      

Unscaled Zero Point Vibrational Energy (zpe) 20186.8 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 20047.5 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 PBEPBE/cc-pVTZ
ABC
0.87443 0.04534 0.04311

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.612 0.000
C2 0.000 -0.612 0.000
C3 0.000 2.023 0.000
C4 0.000 -2.023 0.000
C5 1.106 2.793 0.000
C6 -1.106 -2.793 0.000
H7 -0.983 2.506 0.000
H8 0.983 -2.506 0.000
H9 2.104 2.355 0.000
H10 1.029 3.880 0.000
H11 -2.104 -2.355 0.000
H12 -1.029 -3.880 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22321.41192.63512.44613.58012.13423.26882.73253.42673.63704.6081
C21.22322.63511.41193.58012.44613.26882.13423.63704.60812.73253.4267
C31.41192.63514.04701.34774.94221.09524.63482.13012.12284.85785.9926
C42.63511.41194.04704.94221.34774.63481.09524.85785.99262.13012.1228
C52.44613.58011.34774.94226.00882.10925.30051.08991.08946.06727.0067
C63.58012.44614.94221.34776.00885.30052.10926.06727.00671.08991.0894
H72.13423.26881.09524.63482.10925.30055.38373.09112.43714.98836.3860
H83.26882.13424.63481.09525.30052.10925.38374.98836.38603.09112.4371
H92.73253.63702.13014.85781.08996.06723.09114.98831.86576.31606.9781
H103.42674.60812.12285.99261.08947.00672.43716.38601.86576.97818.0285
H113.63702.73254.85782.13016.06721.08994.98833.09116.31606.97811.8657
H124.60813.42675.99262.12287.00671.08946.38602.43716.97818.02851.8657

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 124.833
C1 C3 H7 116.130 C2 C1 C3 180.000
C2 C4 C6 124.833 C2 C4 H8 116.130
C3 C5 H9 121.451 C3 C5 H10 120.788
C4 C6 H11 121.451 C4 C6 H12 120.788
C5 C3 H7 119.038 C6 C4 H8 119.038
H9 C5 H10 117.761 H11 C6 H12 117.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 C -0.002      
3 C -0.118      
4 C -0.118      
5 C -0.223      
6 C -0.223      
7 H 0.119      
8 H 0.119      
9 H 0.110      
10 H 0.114      
11 H 0.110      
12 H 0.114      


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 -33.280 0.341 0.000
y 0.341 -27.923 0.000
z 0.000 0.000 -39.729
Traceless
 xyz
x 0.546 0.341 0.000
y 0.341 8.581 0.000
z 0.000 0.000 -9.127
Polar
3z2-r2-18.254
x2-y2-5.357
xy0.341
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.384 4.783 0.000
y 4.783 22.641 0.000
z 0.000 0.000 5.441


<r2> (average value of r2) Å2
<r2> 249.619
(<r2>)1/2 15.799