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: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-227.757121
Energy at 298.15K-227.761212
HF Energy-227.757121
Nuclear repulsion energy175.696742
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 HF/STO-3G
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 3817 3117 0.00      
2 Ag 3704 3024 0.00      
3 Ag 3655 2985 0.00      
4 Ag 2812 2296 0.00      
5 Ag 2006 1638 0.00      
6 Ag 1691 1381 0.00      
7 Ag 1533 1252 0.00      
8 Ag 1252 1022 0.00      
9 Ag 816 666 0.00      
10 Ag 651 531 0.00      
11 Ag 270 220 0.00      
12 Au 1224 999 11.35      
13 Au 1155 943 30.40      
14 Au 807 659 4.67      
15 Au 211 173 1.79      
16 Au 34 28 0.10      
17 Bg 1222 998 0.00      
18 Bg 1156 944 0.00      
19 Bg 857 700 0.00      
20 Bg 455 372 0.00      
21 Bu 3817 3117 0.95      
22 Bu 3704 3024 11.58      
23 Bu 3654 2983 152.15      
24 Bu 2026 1655 4.41      
25 Bu 1702 1390 8.30      
26 Bu 1527 1247 22.19      
27 Bu 1351 1103 27.52      
28 Bu 1149 938 1.72      
29 Bu 593 484 2.80      
30 Bu 129 105 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 24488.9 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 19995.2 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 HF/STO-3G
ABC
0.88515 0.04559 0.04336

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.588 0.000
C2 0.000 -0.588 0.000
C3 0.000 2.042 0.000
C4 0.000 -2.042 0.000
C5 1.091 2.778 0.000
C6 -1.091 -2.778 0.000
H7 -0.978 2.515 0.000
H8 0.978 -2.515 0.000
H9 2.081 2.341 0.000
H10 1.044 3.858 0.000
H11 -2.081 -2.341 0.000
H12 -1.044 -3.858 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.17681.45362.63042.44603.53842.16013.25342.72093.43273.59364.5678
C21.17682.63041.45363.53842.44603.25342.16013.59364.56782.72093.4327
C31.45362.63044.08401.31594.94151.08584.66032.10262.09514.85225.9921
C42.63041.45364.08404.94151.31594.66031.08584.85225.99212.10262.0951
C52.44603.53841.31594.94155.96842.08545.29341.08201.08196.02216.9711
C63.53842.44604.94151.31595.96845.29342.08546.02216.97111.08201.0819
H72.16013.25341.08584.66032.08545.29345.39593.06372.42754.97966.3735
H83.25342.16014.66031.08585.29342.08545.39594.97966.37353.06372.4275
H92.72093.59362.10264.85221.08206.02213.06374.97961.83806.26506.9428
H103.43274.56782.09515.99211.08196.97112.42756.37351.83806.94287.9945
H113.59362.72094.85222.10266.02211.08204.97963.06376.26506.94281.8380
H124.56783.43275.99212.09516.97111.08196.37352.42756.94287.99451.8380

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 123.985
C1 C3 H7 115.802 C2 C1 C3 180.000
C2 C4 C6 123.985 C2 C4 H8 115.802
C3 C5 H9 122.228 C3 C5 H10 121.486
C4 C6 H11 122.228 C4 C6 H12 121.486
C5 C3 H7 120.213 C6 C4 H8 120.213
H9 C5 H10 116.286 H11 C6 H12 116.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.053      
2 C -0.053      
3 C -0.056      
4 C -0.056      
5 C -0.113      
6 C -0.113      
7 H 0.077      
8 H 0.077      
9 H 0.073      
10 H 0.071      
11 H 0.073      
12 H 0.071      


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 -31.405 0.551 0.000
y 0.551 -27.153 0.000
z 0.000 0.000 -35.066
Traceless
 xyz
x -0.296 0.551 0.000
y 0.551 6.083 0.000
z 0.000 0.000 -5.787
Polar
3z2-r2-11.574
x2-y2-4.252
xy0.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.456 2.779 0.000
y 2.779 10.654 0.000
z 0.000 0.000 0.911


<r2> (average value of r2) Å2
<r2> 246.689
(<r2>)1/2 15.706