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 ((Z)-hexa-1,3,5-triene)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-233.226503
Energy at 298.15K-233.218796
HF Energy-233.414840
Nuclear repulsion energy196.665259
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 B3LYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3235 3122 24.92      
2 A1 3169 3058 23.49      
3 A1 3155 3045 12.38      
4 A1 3146 3036 1.24      
5 A1 1694 1635 0.00      
6 A1 1632 1574 0.05      
7 A1 1439 1389 0.43      
8 A1 1344 1297 3.41      
9 A1 1291 1246 0.52      
10 A1 1098 1060 0.36      
11 A1 893 861 0.08      
12 A1 393 379 0.06      
13 A1 163 157 0.15      
14 A2 1049 1012 0.00      
15 A2 988 953 0.00      
16 A2 933 900 0.00      
17 A2 740 714 0.00      
18 A2 336 324 0.00      
19 A2 156 151 0.00      
20 B1 1037 1000 22.87      
21 B1 936 903 68.87      
22 B1 858 828 1.58      
23 B1 613 591 17.02      
24 B1 105 102 0.14      
25 B2 3235 3121 0.01      
26 B2 3156 3045 0.72      
27 B2 3146 3036 8.82      
28 B2 3133 3024 0.05      
29 B2 1685 1626 9.47      
30 B2 1489 1437 7.14      
31 B2 1391 1342 0.00      
32 B2 1307 1262 1.04      
33 B2 1212 1169 3.21      
34 B2 965 931 4.07      
35 B2 688 664 0.08      
36 B2 347 335 11.46      

Unscaled Zero Point Vibrational Energy (zpe) 26077.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25164.4 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 B3LYP/6-31G(2df,p)
ABC
0.50408 0.05226 0.04735

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.675 0.754
C2 0.000 -0.675 0.754
C3 0.000 1.553 -0.399
C4 0.000 -1.553 -0.399
C5 0.000 2.889 -0.317
C6 0.000 -2.889 -0.317
H7 0.000 1.180 1.719
H8 0.000 -1.180 1.719
H9 0.000 1.092 -1.384
H10 0.000 -1.092 -1.384
H11 0.000 3.398 0.642
H12 0.000 -3.398 0.642
H13 0.000 3.517 -1.201
H14 0.000 -3.517 -1.201

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.35081.44932.50912.45953.72221.08852.09112.17812.77372.72514.07523.44934.6260
C21.35082.50911.44933.72222.45952.09111.08852.77372.17814.07522.72514.62603.4493
C31.44932.50913.10561.33904.44282.15063.45751.08712.82172.11915.05942.12165.1330
C42.50911.44933.10564.44281.33903.45752.15062.82171.08715.05942.11915.13302.1216
C52.45953.72221.33904.44285.77852.65834.55012.09024.12131.08636.36031.08396.4671
C63.72222.45954.44281.33905.77854.55012.65834.12132.09026.36031.08636.46711.0839
H71.08852.09112.15063.45752.65834.55012.36003.10373.84522.46554.70303.73975.5305
H82.09111.08853.45752.15064.55012.65832.36003.84523.10374.70302.46555.53053.7397
H92.17812.77371.08712.82172.09024.12133.10373.84522.18333.07014.92592.43254.6125
H102.77372.17812.82171.08714.12132.09023.84523.10372.18334.92593.07014.61252.4325
H112.72514.07522.11915.05941.08636.36032.46554.70303.07014.92596.79641.84707.1568
H124.07522.72515.05942.11916.36031.08634.70302.46554.92593.07016.79647.15681.8470
H133.44934.62602.12165.13301.08396.46713.73975.53052.43254.61251.84707.15687.0345
H144.62603.44935.13302.12166.46711.08395.53053.73974.61252.43257.15681.84707.0345

picture of (Z)-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 127.242 C1 C2 H8 118.050
C1 C3 C5 123.564 C1 C3 H9 117.400
C2 C1 C3 127.242 C2 C1 H7 118.050
C2 C4 C6 123.564 C2 C4 H10 117.400
C3 C1 H7 114.708 C3 C5 H11 121.664
C3 C5 H13 121.869 C4 C2 H8 114.708
C4 C6 H12 121.664 C4 C6 H14 121.869
C5 C3 H9 119.036 C6 C4 H10 119.036
H11 C5 H13 116.468 H12 C6 H14 116.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.070      
2 C -0.070      
3 C -0.006      
4 C -0.006      
5 C -0.326      
6 C -0.326      
7 H 0.089      
8 H 0.089      
9 H 0.091      
10 H 0.091      
11 H 0.108      
12 H 0.108      
13 H 0.115      
14 H 0.115      


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 -0.059 0.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 233.380
(<r2>)1/2 15.277