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 C6H10 (2,4-Hexadiene, (Z,Z)-)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-38.606521
Energy at 298.15K-38.616273
Nuclear repulsion energy115.605774
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/CEP-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 A' 3392 3058 138.31      
2 A' 3386 3053 0.00      
3 A' 3340 3011 0.00      
4 A' 3334 3005 76.50      
5 A' 3318 2991 41.43      
6 A' 3313 2986 0.00      
7 A' 3204 2888 0.00      
8 A' 3204 2888 159.73      
9 A' 1884 1698 0.00      
10 A' 1803 1626 9.48      
11 A' 1632 1471 0.00      
12 A' 1630 1469 24.47      
13 A' 1599 1441 0.00      
14 A' 1575 1420 7.84      
15 A' 1565 1411 0.00      
16 A' 1507 1358 8.43      
17 A' 1426 1286 0.00      
18 A' 1382 1246 1.44      
19 A' 1277 1151 0.00      
20 A' 1190 1073 1.22      
21 A' 1093 985 0.00      
22 A' 996 898 23.86      
23 A' 975 879 0.00      
24 A' 679 612 0.00      
25 A' 558 503 17.83      
26 A' 290 261 0.00      
27 A' 202 182 0.39      
28 A" 3261 2940 138.08      
29 A" 3261 2939 0.02      
30 A" 1625 1465 21.67      
31 A" 1625 1465 0.00      
32 A" 1186 1069 0.00      
33 A" 1185 1068 3.91      
34 A" 1145 1032 5.82      
35 A" 1129 1017 0.00      
36 A" 913 823 0.00      
37 A" 802 723 126.52      
38 A" 507 457 0.00      
39 A" 350 315 0.09      
40 A" 108 97 0.00      
41 A" 99 89 1.01      
42 A" 61 55 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 33504.5 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 30200.9 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/CEP-31G
ABC
0.38035 0.05107 0.04579

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.936 -2.608 0.000
C2 1.100 -1.538 0.000
H3 -0.962 -1.229 0.000
C4 0.000 -0.742 0.000
H5 0.962 1.229 0.000
C6 0.000 0.742 0.000
H7 -0.936 2.608 0.000
C8 -1.100 1.538 0.000
H9 -2.689 0.035 0.000
H10 -3.070 1.513 0.879
H11 -3.070 1.513 -0.879
C12 -2.560 1.112 0.000
H13 2.689 -0.034 0.000
H14 3.070 -1.513 0.879
H15 3.070 -1.513 -0.879
C16 2.560 -1.112 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 H7 C8 H9 H10 H11 C12 H13 H14 H15 C16
H11.08212.34642.08783.83673.47815.54174.61904.48625.81415.81415.10533.11382.55472.55472.2075
C21.08212.08491.35782.77032.53144.61903.78184.10235.24115.24114.51882.18802.15782.15781.5210
H32.34642.08491.07833.12112.19283.83672.77042.13983.56823.56822.83453.84154.13684.13683.5239
C42.08781.35781.07832.19281.48363.47812.53142.79903.90923.90923.16092.78063.28533.28532.5866
H53.83672.77033.12112.19281.07832.34642.08493.84154.13684.13683.52392.13973.56813.56812.8344
C63.47812.53142.19281.48361.07832.08781.35782.78063.28533.28532.58662.79893.90913.90913.1609
H75.54174.61903.83673.47812.34642.08781.08213.11382.55472.55472.20754.48605.81405.81405.1052
C84.61903.78182.77042.53142.08491.35781.08212.18802.15782.15781.52104.10235.24115.24114.5187
H94.48624.10232.13982.79903.84152.78063.11382.18801.76131.76131.08575.37876.02816.02815.3729
H105.81415.24113.56823.90924.13683.28532.55472.15781.76131.75721.09216.02806.84557.06746.2740
H115.81415.24113.56823.90924.13683.28532.55472.15781.76131.75721.09216.02807.06746.84556.2740
C125.10534.51882.83453.16093.52392.58662.20751.52101.08571.09211.09215.37296.27406.27405.5824
H133.11382.18803.84152.78062.13972.79894.48604.10235.37876.02806.02805.37291.76131.76131.0857
H142.55472.15784.13683.28533.56813.90915.81405.24116.02816.84557.06746.27401.76131.75721.0921
H152.55472.15784.13683.28533.56813.90915.81405.24116.02817.06746.84556.27401.76131.75721.0921
C162.20751.52103.52392.58662.83443.16095.10524.51875.37296.27406.27405.58241.08571.09211.0921

picture of 2,4-Hexadiene, (Z,Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 117.219 H1 C2 C16 114.949
C2 C4 H3 117.243 C2 C4 C6 125.912
C2 C16 H13 113.091 C2 C16 H14 110.254
C2 C16 H15 110.254 H3 C4 C6 116.846
C4 C2 C16 127.832 C4 C6 H5 116.845
C4 C6 C8 125.913 H5 C6 C8 117.242
C6 C8 H7 117.219 C6 C8 C12 127.833
H7 C8 C12 114.948 C8 C12 H9 113.091
C8 C12 H10 110.254 C8 C12 H11 110.254
H9 C12 H10 107.949 H9 C12 H11 107.949
H10 C12 H11 107.128 H13 C16 H14 107.949
H13 C16 H15 107.949 H14 C16 H15 107.128
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.203      
2 C -0.433      
3 H 0.240      
4 C -0.076      
5 H 0.240      
6 C -0.077      
7 H 0.203      
8 C -0.433      
9 H 0.129      
10 H 0.110      
11 H 0.110      
12 C -0.284      
13 H 0.129      
14 H 0.110      
15 H 0.110      
16 C -0.284      


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 -34.827 -1.296 0.000
y -1.296 -36.001 0.000
z 0.000 0.000 -42.245
Traceless
 xyz
x 4.296 -1.296 0.000
y -1.296 2.534 0.000
z 0.000 0.000 -6.830
Polar
3z2-r2-13.661
x2-y21.174
xy-1.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.899 -4.781 0.000
y -4.781 11.300 0.000
z 0.000 0.000 5.451


<r2> (average value of r2) Å2
<r2> 203.513
(<r2>)1/2 14.266