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 C6H8 ((E)-hexa-1,3,5-triene)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1Ag
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-231.866050
Energy at 298.15K-231.873520
Nuclear repulsion energy194.963268
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/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 3369 3061 0.00      
2 Ag 3298 2996 0.00      
3 Ag 3292 2990 0.00      
4 Ag 3281 2980 0.00      
5 Ag 1878 1706 0.00      
6 Ag 1778 1616 0.00      
7 Ag 1547 1405 0.00      
8 Ag 1438 1307 0.00      
9 Ag 1419 1289 0.00      
10 Ag 1299 1180 0.00      
11 Ag 1010 918 0.00      
12 Ag 469 426 0.00      
13 Ag 376 342 0.00      
14 Au 1150 1045 72.77      
15 Au 1080 982 43.77      
16 Au 1051 955 69.90      
17 Au 774 704 14.92      
18 Au 269 244 2.62      
19 Au 99 90 0.26      
20 Bg 1126 1023 0.00      
21 Bg 1057 960 0.00      
22 Bg 997 905 0.00      
23 Bg 668 607 0.00      
24 Bg 213 194 0.00      
25 Bu 3369 3061 40.72      
26 Bu 3302 3000 46.46      
27 Bu 3291 2990 11.54      
28 Bu 3279 2979 11.51      
29 Bu 1838 1670 33.69      
30 Bu 1579 1434 4.15      
31 Bu 1429 1298 4.79      
32 Bu 1381 1255 4.50      
33 Bu 1217 1105 6.71      
34 Bu 1036 941 1.65      
35 Bu 579 526 5.33      
36 Bu 159 144 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 27697.4 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 25163.1 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 HF/6-311G**
ABC
0.89612 0.04495 0.04280

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.664 0.000
C2 0.002 -0.664 0.000
C3 1.208 1.486 0.000
C4 -1.208 -1.486 0.000
C5 1.208 2.809 0.000
C6 -1.208 -2.809 0.000
H7 0.944 -1.191 0.000
H8 -0.944 1.191 0.000
H9 2.148 0.957 0.000
H10 -2.148 -0.957 0.000
H11 2.125 3.370 0.000
H12 -2.125 -3.370 0.000
H13 -0.291 -3.374 0.000
H14 0.291 3.374 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.32811.46312.46492.46273.67612.08281.07912.17012.68893.44214.55844.04842.7259
C21.32812.46491.46313.67612.46271.07912.08282.68892.17014.55843.44212.72594.0484
C31.46312.46493.83001.32294.92762.69032.17181.07874.15072.09545.88975.08592.0991
C42.46491.46313.83004.92761.32292.17182.69034.15071.07875.88972.09542.09915.0859
C52.46273.67611.32294.92766.11504.00892.69182.07705.04391.07527.02046.36201.0772
C63.67612.46274.92761.32296.11502.69184.00895.04392.07707.02041.07521.07726.3620
H72.08281.07912.69032.17184.00892.69183.03992.46263.10064.71193.76352.50774.6119
H81.07912.08282.17182.69032.69184.00893.03993.10062.46263.76354.71194.61192.5077
H92.17012.68891.07874.15072.07705.04392.46263.10064.70272.41346.08104.97033.0483
H102.68892.17014.15071.07875.04392.07703.10062.46264.70276.08102.41343.04834.9703
H113.44214.55842.09545.88971.07527.02044.71193.76352.41346.08107.96817.16381.8341
H124.55843.44215.88972.09547.02041.07523.76354.71196.08102.41347.96811.83417.1638
H134.04842.72595.08592.09916.36201.07722.50774.61194.97033.04837.16381.83416.7732
H142.72594.04842.09915.08591.07726.36204.61192.50773.04834.97031.83417.16386.7732

picture of (E)-hexa-1,3,5-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.973 C1 C2 H7 119.464
C1 C3 C5 124.174 C1 C3 H9 116.439
C2 C1 C3 123.973 C2 C1 H8 119.464
C2 C4 C6 124.174 C2 C4 H10 116.439
C3 C1 H8 116.563 C3 C5 H11 121.459
C3 C5 H14 121.657 C4 C2 H7 116.563
C4 C6 H12 121.459 C4 C6 H13 121.657
C5 C3 H9 119.386 C6 C4 H10 119.386
H11 C5 H14 116.884 H12 C6 H13 116.884
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.088      
2 C -0.088      
3 C -0.134      
4 C -0.134      
5 C -0.180      
6 C -0.180      
7 H 0.094      
8 H 0.094      
9 H 0.095      
10 H 0.095      
11 H 0.111      
12 H 0.111      
13 H 0.101      
14 H 0.101      


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 -33.697 -0.517 0.000
y -0.517 -33.951 0.000
z 0.000 0.000 -42.662
Traceless
 xyz
x 4.609 -0.517 0.000
y -0.517 4.229 0.000
z 0.000 0.000 -8.838
Polar
3z2-r2-17.675
x2-y20.253
xy-0.517
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.972 3.522 0.000
y 3.522 21.315 0.000
z 0.000 0.000 4.642


<r2> (average value of r2) Å2
<r2> 254.806
(<r2>)1/2 15.963