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

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-233.499357
Energy at 298.15K-233.508004
Nuclear repulsion energy218.422934
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/6-311+G(3df,2p)
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 3152 3048 0.00      
2 Ag 2973 2875 0.00      
3 Ag 1745 1688 0.00      
4 Ag 1469 1421 0.00      
5 Ag 1229 1189 0.00      
6 Ag 855 827 0.00      
7 Ag 545 527 0.00      
8 Au 1220 1179 0.00      
9 Au 1012 979 0.00      
10 Au 388 375 0.00      
11 B1g 3128 3025 0.00      
12 B1g 1401 1355 0.00      
13 B1g 1370 1324 0.00      
14 B1g 1042 1008 0.00      
15 B1g 580 561 0.00      
16 B1u 2976 2878 34.72      
17 B1u 989 956 29.74      
18 B1u 634 613 65.54      
19 B1u 114 110 1.22      
20 B2g 2978 2880 0.00      
21 B2g 1028 995 0.00      
22 B2g 964 933 0.00      
23 B2g 407 394 0.00      
24 B2u 3150 3046 67.15      
25 B2u 1698 1642 9.25      
26 B2u 1381 1335 0.24      
27 B2u 1181 1142 0.28      
28 B2u 944 913 0.25      
29 B3g 1222 1182 0.00      
30 B3g 727 703 0.00      
31 B3u 3128 3025 18.77      
32 B3u 2975 2877 89.02      
33 B3u 1473 1425 9.56      
34 B3u 1441 1393 0.14      
35 B3u 974 942 0.58      
36 B3u 889 859 12.10      

Unscaled Zero Point Vibrational Energy (zpe) 26691.6 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 25810.8 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/6-311+G(3df,2p)
ABC
0.17265 0.16433 0.08683

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.000 0.000
C2 -1.495 0.000 0.000
C3 -0.664 1.252 0.000
C4 0.664 1.252 0.000
C5 -0.664 -1.252 0.000
C6 0.664 -1.252 0.000
H7 1.200 -2.195 0.000
H8 -1.200 -2.195 0.000
H9 1.200 2.195 0.000
H10 -1.200 2.195 0.000
H11 2.167 0.000 0.868
H12 -2.167 0.000 0.868
H13 2.167 0.000 -0.868
H14 -2.167 0.000 -0.868

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.98972.49561.50212.49561.50212.21433.47562.21433.47561.09773.76351.09773.7635
C22.98971.50212.49561.50212.49563.47562.21433.47562.21433.76351.09773.76351.0977
C32.49561.50211.32842.50312.83383.91823.48762.08931.08473.21502.13973.21502.1397
C41.50212.49561.32842.83382.50313.48763.91821.08472.08932.13973.21502.13973.2150
C52.49561.50212.50312.83381.32842.08931.08473.91823.48763.21502.13973.21502.1397
C61.50212.49562.83382.50311.32841.08472.08933.48763.91822.13973.21502.13973.2150
H72.21433.47563.91823.48762.08931.08472.40034.38925.00272.55044.11202.55044.1120
H83.47562.21433.48763.91821.08472.08932.40035.00274.38924.11202.55044.11202.5504
H92.21433.47562.08931.08473.91823.48764.38925.00272.40032.55044.11202.55044.1120
H103.47562.21431.08472.08933.48763.91825.00274.38922.40034.11202.55044.11202.5504
H111.09773.76353.21502.13973.21502.13972.55044.11202.55044.11204.33441.73544.6689
H123.76351.09772.13973.21502.13973.21504.11202.55044.11202.55044.33444.66891.7354
H131.09773.76353.21502.13973.21502.13972.55044.11202.55044.11201.73544.66894.3344
H143.76351.09772.13973.21502.13973.21504.11202.55044.11202.55044.66891.73544.3344

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 123.573 C1 C4 H9 116.816
C1 C6 C5 123.573 C1 C6 H7 116.816
C2 C3 C4 123.573 C2 C3 H10 116.816
C2 C5 C6 123.573 C2 C5 H8 116.816
C3 C2 C5 112.855 C3 C2 H12 109.798
C3 C2 H14 109.798 C3 C4 H9 119.611
C4 C1 C6 112.855 C4 C1 H11 109.798
C4 C1 H13 109.798 C4 C3 H10 119.611
C5 C2 H12 109.798 C5 C2 H14 109.798
C5 C6 H7 119.611 C6 C1 H11 109.798
C6 C1 H13 109.798 C6 C5 H8 119.611
H11 C1 H13 104.460 H12 C2 H14 104.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063      
2 C 0.063      
3 C -0.297      
4 C -0.297      
5 C -0.297      
6 C -0.297      
7 H 0.123      
8 H 0.123      
9 H 0.123      
10 H 0.123      
11 H 0.142      
12 H 0.142      
13 H 0.142      
14 H 0.142      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.985 0.000 0.000
y 0.000 10.133 0.000
z 0.000 0.000 7.507


<r2> (average value of r2) Å2
<r2> 144.735
(<r2>)1/2 12.031