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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-231.956661
Energy at 298.15K-231.960788
HF Energy-231.956661
Nuclear repulsion energy176.313891
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 B1B95/6-31G
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 3194 3046 0.00      
2 Ag 3170 3023 0.00      
3 Ag 2085 1988 0.00      
4 Ag 1542 1471 0.00      
5 Ag 1442 1376 0.00      
6 Ag 1216 1159 0.00      
7 Ag 1060 1011 0.00      
8 Ag 944 900 0.00      
9 Ag 549 524 0.00      
10 Ag 241 230 0.00      
11 Au 3248 3098 12.20      
12 Au 1054 1006 0.74      
13 Au 959 914 45.17      
14 Au 505 482 3.01      
15 Au 365 348 12.74      
16 Au 87 83 0.45      
17 Bg 3248 3098 0.00      
18 Bg 1057 1008 0.00      
19 Bg 938 894 0.00      
20 Bg 699 667 0.00      
21 Bg 330 315 0.00      
22 Bu 3204 3055 11.83      
23 Bu 3170 3024 17.90      
24 Bu 2106 2009 104.83      
25 Bu 1504 1435 0.91      
26 Bu 1318 1257 7.04      
27 Bu 1139 1086 3.51      
28 Bu 944 901 140.79      
29 Bu 556 531 26.26      
30 Bu 126 120 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 20999.9 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 20027.6 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 B1B95/6-31G
ABC
1.09050 0.04523 0.04421

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.324 0.656 0.000
C2 0.324 -0.656 0.000
C3 0.324 1.801 0.000
C4 -0.324 -1.801 0.000
C5 0.970 2.935 0.000
C6 -0.970 -2.935 0.000
H7 -1.411 0.663 0.000
H8 1.411 -0.663 0.000
H9 1.253 3.434 0.922
H10 1.253 3.434 -0.922
H11 -1.253 -3.434 0.922
H12 -1.253 -3.434 -0.922

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.46331.31592.45632.62163.64881.08632.17953.32523.32524.29414.2941
C21.46332.45631.31593.64882.62162.17951.08634.29414.29413.32523.3252
C31.31592.45633.65911.30574.90982.07482.69242.09292.09295.54435.5443
C42.45631.31593.65914.90981.30572.69242.07485.54435.54432.09292.0929
C52.62163.64881.30574.90986.18333.29133.62541.08561.08566.80916.8091
C63.64882.62164.90981.30576.18333.62543.29136.80916.80911.08561.0856
H71.08632.17952.07482.69243.29133.62543.11753.95263.95264.20264.2026
H82.17951.08632.69242.07483.62543.29133.11754.20264.20263.95263.9526
H93.32524.29412.09295.54431.08566.80913.95264.20261.84387.31107.5399
H103.32524.29412.09295.54431.08566.80913.95264.20261.84387.53997.3110
H114.29413.32525.54432.09296.80911.08564.20263.95267.31107.53991.8438
H124.29413.32525.54432.09296.80911.08564.20263.95267.53997.31101.8438

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 124.132 C1 C2 H8 116.704
C1 C3 C5 179.908 C2 C1 C3 124.132
C2 C1 H7 116.704 C2 C4 C6 179.908
C3 C1 H7 119.164 C3 C5 H9 121.870
C3 C5 H10 121.870 C4 C2 H8 119.164
C4 C6 H11 121.870 C4 C6 H12 121.870
H9 C5 H10 116.259 H11 C6 H12 116.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.223      
3 C 0.131      
4 C 0.131      
5 C -0.452      
6 C -0.452      
7 H 0.188      
8 H 0.188      
9 H 0.178      
10 H 0.178      
11 H 0.178      
12 H 0.178      


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 -34.200 3.157 0.000
y 3.157 -30.629 0.000
z 0.000 0.000 -35.709
Traceless
 xyz
x -1.031 3.157 0.000
y 3.157 4.325 0.000
z 0.000 0.000 -3.294
Polar
3z2-r2-6.588
x2-y2-3.571
xy3.157
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.428 6.289 0.000
y 6.289 19.274 0.000
z 0.000 0.000 4.603


<r2> (average value of r2) Å2
<r2> 243.931
(<r2>)1/2 15.618