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/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-231.917203
Energy at 298.15K-231.920927
HF Energy-231.917203
Nuclear repulsion energy174.610323
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/Def2TZVPP
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 3180 3142 0.00      
2 Ag 3087 3049 0.00      
3 Ag 3061 3024 0.00      
4 Ag 2217 2190 0.00      
5 Ag 1587 1568 0.00      
6 Ag 1390 1373 0.00      
7 Ag 1276 1261 0.00      
8 Ag 1053 1040 0.00      
9 Ag 714 705 0.00      
10 Ag 511 505 0.00      
11 Ag 220 218 0.00      
12 Au 968 956 34.62      
13 Au 898 887 77.05      
14 Au 662 654 10.96      
15 Au 173 171 6.89      
16 Au 52 52 0.13      
17 Bg 962 950 0.00      
18 Bg 899 888 0.00      
19 Bg 682 674 0.00      
20 Bg 367 363 0.00      
21 Bu 3180 3142 10.85      
22 Bu 3086 3049 5.14      
23 Bu 3061 3024 17.87      
24 Bu 1623 1604 40.47      
25 Bu 1415 1398 5.37      
26 Bu 1275 1259 1.76      
27 Bu 1195 1181 10.22      
28 Bu 991 979 1.55      
29 Bu 514 508 10.19      
30 Bu 106 105 2.55      

Unscaled Zero Point Vibrational Energy (zpe) 20202.3 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 19957.9 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/Def2TZVPP
ABC
0.89467 0.04505 0.04289

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.018 0.610 0.000
C2 -0.018 -0.610 0.000
C3 -0.018 2.027 0.000
C4 0.018 -2.027 0.000
C5 1.074 2.817 0.000
C6 -1.074 -2.817 0.000
H7 -1.006 2.497 0.000
H8 1.006 -2.497 0.000
H9 2.080 2.397 0.000
H10 0.971 3.901 0.000
H11 -2.080 -2.397 0.000
H12 -0.971 -3.901 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22151.41662.63702.44633.59742.14653.26062.72833.42533.66714.6182
C21.22152.63701.41663.59742.44633.26062.14653.66714.61822.72833.4253
C31.41662.63704.05331.34864.95731.09404.63802.13082.11914.88056.0032
C42.63701.41664.05334.95731.34864.63801.09404.88056.00322.13082.1191
C52.44633.59741.34864.95736.02982.10495.31431.08991.08856.09407.0220
C63.59742.44634.95731.34866.02985.31432.10496.09407.02201.08991.0885
H72.14653.26061.09404.63802.10495.31435.38393.08782.42475.01046.3975
H83.26062.14654.63801.09405.31432.10495.38395.01046.39753.08782.4247
H92.72833.66712.13084.88051.08996.09403.08785.01041.86846.34746.9978
H103.42534.61822.11916.00321.08857.02202.42476.39751.86846.99788.0392
H113.66712.72834.88052.13086.09401.08995.01043.08786.34746.99781.8684
H124.61823.42536.00322.11917.02201.08856.39752.42476.99788.03921.8684

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 176.824 C1 C3 C5 124.410
C1 C3 H7 116.934 C2 C1 C3 176.824
C2 C4 C6 124.410 C2 C4 H8 116.934
C3 C5 H9 121.452 C3 C5 H10 120.434
C4 C6 H11 121.452 C4 C6 H12 120.434
C5 C3 H7 118.656 C6 C4 H8 118.656
H9 C5 H10 118.114 H11 C6 H12 118.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.025      
2 C 0.025      
3 C -0.159      
4 C -0.159      
5 C -0.168      
6 C -0.168      
7 H 0.104      
8 H 0.104      
9 H 0.095      
10 H 0.103      
11 H 0.095      
12 H 0.103      


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 -33.383 0.283 0.000
y 0.283 -28.077 0.000
z 0.000 0.000 -39.943
Traceless
 xyz
x 0.627 0.283 0.000
y 0.283 8.586 0.000
z 0.000 0.000 -9.213
Polar
3z2-r2-18.426
x2-y2-5.306
xy0.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.463 4.789 0.000
y 4.789 23.174 0.000
z 0.000 0.000 6.182


<r2> (average value of r2) Å2
<r2> 250.829
(<r2>)1/2 15.838