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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-233.176158
Energy at 298.15K-233.184652
Nuclear repulsion energy217.695433
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 PBEPBE/cc-pVTZ
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 3091 3069 0.00      
2 Ag 2909 2889 0.00      
3 Ag 1703 1692 0.00      
4 Ag 1408 1398 0.00      
5 Ag 1189 1181 0.00      
6 Ag 849 843 0.00      
7 Ag 526 523 0.00      
8 Au 1172 1164 0.00      
9 Au 963 956 0.00      
10 Au 375 372 0.00      
11 B1g 3067 3046 0.00      
12 B1g 1360 1350 0.00      
13 B1g 1318 1309 0.00      
14 B1g 1020 1013 0.00      
15 B1g 563 560 0.00      
16 B1u 2912 2892 37.17      
17 B1u 948 941 22.87      
18 B1u 607 602 62.09      
19 B1u 108 108 0.98      
20 B2g 2914 2894 0.00      
21 B2g 978 972 0.00      
22 B2g 933 926 0.00      
23 B2g 402 399 0.00      
24 B2u 3089 3068 73.01      
25 B2u 1656 1645 7.69      
26 B2u 1337 1327 0.39      
27 B2u 1138 1130 0.12      
28 B2u 931 925 0.11      
29 B3g 1178 1170 0.00      
30 B3g 697 692 0.00      
31 B3u 3067 3045 18.14      
32 B3u 2911 2891 89.77      
33 B3u 1414 1404 10.53      
34 B3u 1395 1385 0.01      
35 B3u 947 940 0.23      
36 B3u 879 873 14.41      

Unscaled Zero Point Vibrational Energy (zpe) 25975.6 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 25796.4 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 PBEPBE/cc-pVTZ
ABC
0.17223 0.16296 0.08636

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.498 0.000 0.000
C2 -1.498 0.000 0.000
C3 -0.669 1.252 0.000
C4 0.669 1.252 0.000
C5 -0.669 -1.252 0.000
C6 0.669 -1.252 0.000
H7 1.207 -2.203 0.000
H8 -1.207 -2.203 0.000
H9 1.207 2.203 0.000
H10 -1.207 2.203 0.000
H11 2.181 0.000 0.872
H12 -2.181 0.000 0.872
H13 2.181 0.000 -0.872
H14 -2.181 0.000 -0.872

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.99672.50261.50202.50261.50202.22273.48912.22273.48911.10733.78121.10733.7812
C22.99671.50202.50261.50202.50263.48912.22273.48912.22273.78121.10733.78121.1073
C32.50261.50201.33722.50402.83863.93173.49722.10311.09333.23222.14823.23222.1482
C41.50202.50261.33722.83862.50403.49723.93171.09332.10312.14823.23222.14823.2322
C52.50261.50202.50402.83861.33722.10311.09333.93173.49723.23222.14823.23222.1482
C61.50202.50262.83862.50401.33721.09332.10313.49723.93172.14823.23222.14823.2322
H72.22273.48913.93173.49722.10311.09332.41404.40705.02482.56204.13442.56204.1344
H83.48912.22273.49723.93171.09332.10312.41405.02484.40704.13442.56204.13442.5620
H92.22273.48912.10311.09333.93173.49724.40705.02482.41402.56204.13442.56204.1344
H103.48912.22271.09332.10313.49723.93175.02484.40702.41404.13442.56204.13442.5620
H111.10733.78123.23222.14823.23222.14822.56204.13442.56204.13444.36191.74364.6975
H123.78121.10732.14823.23222.14823.23224.13442.56204.13442.56204.36194.69751.7436
H131.10733.78123.23222.14823.23222.14822.56204.13442.56204.13441.74364.69754.3619
H143.78121.10732.14823.23222.14823.23224.13442.56204.13442.56204.69751.74364.3619

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 123.534 C1 C4 H9 116.963
C1 C6 C5 123.534 C1 C6 H7 116.963
C2 C3 C4 123.534 C2 C3 H10 116.963
C2 C5 C6 123.534 C2 C5 H8 116.963
C3 C2 C5 112.932 C3 C2 H12 109.912
C3 C2 H14 109.912 C3 C4 H9 119.503
C4 C1 C6 112.932 C4 C1 H11 109.912
C4 C1 H13 109.912 C4 C3 H10 119.503
C5 C2 H12 109.912 C5 C2 H14 109.912
C5 C6 H7 119.503 C6 C1 H11 109.912
C6 C1 H13 109.912 C6 C5 H8 119.503
H11 C1 H13 103.877 H12 C2 H14 103.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.090      
2 C -0.090      
3 C -0.135      
4 C -0.135      
5 C -0.135      
6 C -0.135      
7 H 0.095      
8 H 0.095      
9 H 0.095      
10 H 0.095      
11 H 0.085      
12 H 0.085      
13 H 0.085      
14 H 0.085      


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 -33.705 0.000 0.000
y 0.000 -36.098 0.000
z 0.000 0.000 -39.307
Traceless
 xyz
x 3.997 0.000 0.000
y 0.000 0.408 0.000
z 0.000 0.000 -4.405
Polar
3z2-r2-8.810
x2-y22.393
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.121 0.000 0.000
y 0.000 10.086 0.000
z 0.000 0.000 6.532


<r2> (average value of r2) Å2
<r2> 145.318
(<r2>)1/2 12.055