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 (1,2,4,5-Hexatetraene)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-232.051719
Energy at 298.15K-232.055715
HF Energy-232.051719
Nuclear repulsion energy177.137523
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 B1B95/6-311G*
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 3168 3037 0.00      
2 Ag 3138 3008 0.00      
3 Ag 2059 1973 0.00      
4 Ag 1519 1456 0.00      
5 Ag 1406 1348 0.00      
6 Ag 1183 1134 0.00      
7 Ag 1049 1005 0.00      
8 Ag 875 839 0.00      
9 Ag 544 521 0.00      
10 Ag 233 224 0.00      
11 Au 3213 3080 8.60      
12 Au 1018 976 0.05      
13 Au 929 891 38.41      
14 Au 491 471 3.38      
15 Au 358 343 13.25      
16 Au 85 81 0.57      
17 Bg 3213 3080 0.00      
18 Bg 1020 978 0.00      
19 Bg 896 859 0.00      
20 Bg 683 654 0.00      
21 Bg 322 308 0.00      
22 Bu 3177 3045 8.01      
23 Bu 3138 3008 25.59      
24 Bu 2081 1995 118.37      
25 Bu 1467 1406 0.50      
26 Bu 1276 1223 12.92      
27 Bu 1120 1074 2.20      
28 Bu 876 839 111.46      
29 Bu 550 528 30.28      
30 Bu 123 117 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 20603.1 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 19750.1 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 B1B95/6-311G*
ABC
1.08734 0.04576 0.04472

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.324 0.654 0.000
C2 0.324 -0.654 0.000
C3 0.324 1.790 0.000
C4 -0.324 -1.790 0.000
C5 0.971 2.916 0.000
C6 -0.971 -2.916 0.000
H7 -1.410 0.669 0.000
H8 1.410 -0.669 0.000
H9 1.252 3.409 0.925
H10 1.252 3.409 -0.925
H11 -1.252 -3.409 0.925
H12 -1.252 -3.409 -0.925

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45921.30842.44362.60693.62761.08592.18123.30633.30634.26834.2683
C21.45922.44361.30843.62762.60692.18121.08594.26834.26833.30633.3063
C31.30842.44363.63831.29844.88092.06492.68832.08252.08255.51065.5106
C42.44361.30843.63834.88091.29842.68832.06495.51065.51062.08252.0825
C52.60693.62761.29844.88096.14673.27363.61201.08521.08526.76756.7675
C63.62762.60694.88091.29846.14673.61203.27366.76756.76751.08521.0852
H71.08592.18122.06492.68833.27363.61203.12163.93033.93034.18464.1846
H82.18121.08592.68832.06493.61203.27363.12164.18464.18463.93033.9303
H93.30634.26832.08255.51061.08526.76753.93034.18461.85037.26287.4947
H103.30634.26832.08255.51061.08526.76753.93034.18461.85037.49477.2628
H114.26833.30635.51062.08256.76751.08524.18463.93037.26287.49471.8503
H124.26833.30635.51062.08256.76751.08524.18463.93037.49477.26281.8503

picture of 1,2,4,5-Hexatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.901 C1 C2 H8 117.214
C1 C3 C5 179.844 C2 C1 C3 123.901
C2 C1 H7 117.214 C2 C4 C6 179.844
C3 C1 H7 118.885 C3 C5 H9 121.519
C3 C5 H10 121.519 C4 C2 H8 118.885
C4 C6 H11 121.519 C4 C6 H12 121.519
H9 C5 H10 116.963 H11 C6 H12 116.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.310      
2 C -0.310      
3 C 0.153      
4 C 0.153      
5 C -0.547      
6 C -0.547      
7 H 0.232      
8 H 0.232      
9 H 0.236      
10 H 0.236      
11 H 0.236      
12 H 0.236      


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 -34.604 3.480 0.000
y 3.480 -30.702 0.000
z 0.000 0.000 -36.166
Traceless
 xyz
x -1.170 3.480 0.000
y 3.480 4.683 0.000
z 0.000 0.000 -3.513
Polar
3z2-r2-7.026
x2-y2-3.902
xy3.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.405 5.958 0.000
y 5.958 20.029 0.000
z 0.000 0.000 5.405


<r2> (average value of r2) Å2
<r2> 241.613
(<r2>)1/2 15.544