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: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-232.085077
Energy at 298.15K-232.088984
HF Energy-232.085077
Nuclear repulsion energy175.288534
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 mPW1PW91/6-31G**
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 3296 3136 0.00      
2 Ag 3199 3044 0.00      
3 Ag 3184 3030 0.00      
4 Ag 2337 2224 0.00      
5 Ag 1685 1603 0.00      
6 Ag 1448 1378 0.00      
7 Ag 1331 1266 0.00      
8 Ag 1092 1039 0.00      
9 Ag 733 698 0.00      
10 Ag 541 514 0.00      
11 Ag 226 215 0.00      
12 Au 1019 970 36.96      
13 Au 947 901 79.40      
14 Au 690 657 10.54      
15 Au 187 178 5.03      
16 Au 53 50 0.12      
17 Bg 1014 965 0.00      
18 Bg 948 902 0.00      
19 Bg 717 683 0.00      
20 Bg 387 368 0.00      
21 Bu 3296 3136 13.78      
22 Bu 3199 3044 8.28      
23 Bu 3184 3030 20.12      
24 Bu 1716 1633 24.43      
25 Bu 1471 1400 4.98      
26 Bu 1328 1264 5.18      
27 Bu 1235 1175 18.34      
28 Bu 1024 974 1.98      
29 Bu 529 504 10.13      
30 Bu 112 106 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 21064.3 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 20042.7 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 mPW1PW91/6-31G**
ABC
0.87550 0.04561 0.04335

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.608 0.000
C2 0.000 -0.608 0.000
C3 0.000 2.025 0.000
C4 0.000 -2.025 0.000
C5 1.106 2.781 0.000
C6 -1.106 -2.781 0.000
H7 -0.976 2.506 0.000
H8 0.976 -2.506 0.000
H9 2.095 2.338 0.000
H10 1.039 3.862 0.000
H11 -2.095 -2.338 0.000
H12 -1.039 -3.862 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21591.41662.63252.43803.56462.13443.26352.71743.41603.61534.5892
C21.21592.63251.41663.56462.43803.26352.13443.61534.58922.71743.4160
C31.41662.63254.04921.33974.93091.08814.63482.11852.11084.84005.9777
C42.63251.41664.04924.93091.33974.63481.08814.84005.97772.11852.1108
C52.43803.56461.33974.93095.98522.09955.28871.08371.08356.03766.9805
C63.56462.43804.93091.33975.98525.28872.09956.03766.98051.08371.0835
H72.13443.26351.08814.63482.09955.28875.37913.07542.42814.97246.3689
H83.26352.13444.63481.08815.28872.09955.37914.97246.36893.07542.4281
H92.71743.61532.11854.84001.08376.03763.07544.97241.85436.27946.9475
H103.41604.58922.11085.97771.08356.98052.42816.36891.85436.94757.9988
H113.61532.71744.84002.11856.03761.08374.97243.07546.27946.94751.8543
H124.58923.41605.97772.11086.98051.08356.36892.42816.94757.99881.8543

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 124.364
C1 C3 H7 116.281 C2 C1 C3 180.000
C2 C4 C6 124.364 C2 C4 H8 116.281
C3 C5 H9 121.544 C3 C5 H10 120.806
C4 C6 H11 121.544 C4 C6 H12 120.806
C5 C3 H7 119.355 C6 C4 H8 119.355
H9 C5 H10 117.649 H11 C6 H12 117.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 C -0.002      
3 C -0.172      
4 C -0.172      
5 C -0.264      
6 C -0.264      
7 H 0.155      
8 H 0.155      
9 H 0.144      
10 H 0.139      
11 H 0.144      
12 H 0.139      


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 -32.018 0.567 0.000
y 0.567 -26.464 0.000
z 0.000 0.000 -38.742
Traceless
 xyz
x 0.585 0.567 0.000
y 0.567 8.916 0.000
z 0.000 0.000 -9.500
Polar
3z2-r2-19.001
x2-y2-5.554
xy0.567
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.056 4.420 0.000
y 4.420 19.593 0.000
z 0.000 0.000 3.262


<r2> (average value of r2) Å2
<r2> 247.503
(<r2>)1/2 15.732