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All results from a given calculation for C6H8 (1,4-Cyclohexadiene)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-233.094185
Energy at 298.15K-233.102647
HF Energy-233.094185
Nuclear repulsion energy216.830018
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 PBEPBEultrafine/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 3109 3058 0.00      
2 Ag 2917 2869 0.00      
3 Ag 1724 1695 0.00      
4 Ag 1446 1422 0.00      
5 Ag 1200 1180 0.00      
6 Ag 854 840 0.00      
7 Ag 527 519 0.00      
8 Au 1181 1161 0.00      
9 Au 955 939 0.00      
10 Au 369 363 0.00      
11 B1g 3085 3034 0.00      
12 B1g 1375 1352 0.00      
13 B1g 1328 1307 0.00      
14 B1g 1032 1015 0.00      
15 B1g 563 554 0.00      
16 B1u 2927 2879 52.10      
17 B1u 963 947 15.69      
18 B1u 612 602 59.15      
19 B1u 122 120 1.04      
20 B2g 2929 2880 0.00      
21 B2g 971 955 0.00      
22 B2g 944 928 0.00      
23 B2g 395 388 0.00      
24 B2u 3107 3055 87.26      
25 B2u 1678 1650 7.19      
26 B2u 1356 1333 0.01      
27 B2u 1149 1130 0.01      
28 B2u 938 923 0.01      
29 B3g 1191 1171 0.00      
30 B3g 697 686 0.00      
31 B3u 3085 3034 19.42      
32 B3u 2919 2871 99.73      
33 B3u 1450 1426 4.52      
34 B3u 1409 1386 0.08      
35 B3u 944 929 0.15      
36 B3u 888 874 11.19      

Unscaled Zero Point Vibrational Energy (zpe) 26168.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 25736.5 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 PBEPBEultrafine/6-31G*
ABC
0.17104 0.16153 0.08568

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.510 0.000 0.000
C2 -1.510 0.000 0.000
C3 -0.672 1.257 0.000
C4 0.672 1.257 0.000
C5 -0.672 -1.257 0.000
C6 0.672 -1.257 0.000
H7 1.218 -2.209 0.000
H8 -1.218 -2.209 0.000
H9 1.218 2.209 0.000
H10 -1.218 2.209 0.000
H11 2.189 0.000 0.877
H12 -2.189 0.000 0.877
H13 2.189 0.000 -0.877
H14 -2.189 0.000 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.01922.51821.51052.51821.51052.22833.51032.22833.51031.10983.80141.10983.8014
C23.01921.51052.51821.51052.51823.51032.22833.51032.22833.80141.10983.80141.1098
C32.51821.51051.34472.51432.85133.94843.50912.11681.09753.24632.15663.24632.1566
C41.51052.51821.34472.85132.51433.50913.94841.09752.11682.15663.24632.15663.2463
C52.51821.51052.51432.85131.34472.11681.09753.94843.50913.24632.15663.24632.1566
C61.51052.51822.85132.51431.34471.09752.11683.50913.94842.15663.24632.15663.2463
H72.22833.51033.94843.50912.11681.09752.43664.41835.04572.56764.15462.56764.1546
H83.51032.22833.50913.94841.09752.11682.43665.04574.41834.15462.56764.15462.5676
H92.22833.51032.11681.09753.94843.50914.41835.04572.43662.56764.15462.56764.1546
H103.51032.22831.09752.11683.50913.94845.04574.41832.43664.15462.56764.15462.5676
H111.10983.80143.24632.15663.24632.15662.56764.15462.56764.15464.37821.75484.7168
H123.80141.10982.15663.24632.15663.24634.15462.56764.15462.56764.37824.71681.7548
H131.10983.80143.24632.15663.24632.15662.56764.15462.56764.15461.75484.71684.3782
H143.80141.10982.15663.24632.15663.24634.15462.56764.15462.56764.71681.75484.3782

picture of 1,4-Cyclohexadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 123.664 C1 C4 H9 116.502
C1 C6 C5 123.664 C1 C6 H7 116.502
C2 C3 C4 123.664 C2 C3 H10 116.502
C2 C5 C6 123.664 C2 C5 H8 116.502
C3 C2 C5 112.672 C3 C2 H12 109.841
C3 C2 H14 109.841 C3 C4 H9 119.834
C4 C1 C6 112.672 C4 C1 H11 109.841
C4 C1 H13 109.841 C4 C3 H10 119.834
C5 C2 H12 109.841 C5 C2 H14 109.841
C5 C6 H7 119.834 C6 C1 H11 109.841
C6 C1 H13 109.841 C6 C5 H8 119.834
H11 C1 H13 104.489 H12 C2 H14 104.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.380      
2 C -0.380      
3 C -0.105      
4 C -0.105      
5 C -0.105      
6 C -0.105      
7 H 0.129      
8 H 0.129      
9 H 0.129      
10 H 0.129      
11 H 0.167      
12 H 0.167      
13 H 0.167      
14 H 0.167      


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 -32.979 0.000 0.000
y 0.000 -35.075 0.000
z 0.000 0.000 -38.604
Traceless
 xyz
x 3.861 0.000 0.000
y 0.000 0.716 0.000
z 0.000 0.000 -4.577
Polar
3z2-r2-9.155
x2-y22.096
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.125 0.000 0.000
y 0.000 8.896 0.000
z 0.000 0.000 5.090


<r2> (average value of r2) Å2
<r2> 145.780
(<r2>)1/2 12.074