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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-233.441273
Energy at 298.15K-233.449977
Nuclear repulsion energy219.175506
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 mPW1PW91/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 3183 3053 0.00      
2 Ag 3006 2884 0.00      
3 Ag 1776 1704 0.00      
4 Ag 1465 1405 0.00      
5 Ag 1231 1181 0.00      
6 Ag 877 841 0.00      
7 Ag 544 521 0.00      
8 Au 1223 1173 0.00      
9 Au 1017 976 0.00      
10 Au 391 375 0.00      
11 B1g 3158 3029 0.00      
12 B1g 1420 1362 0.00      
13 B1g 1370 1314 0.00      
14 B1g 1054 1011 0.00      
15 B1g 582 558 0.00      
16 B1u 3017 2894 36.08      
17 B1u 991 951 27.44      
18 B1u 635 610 64.17      
19 B1u 120 115 1.02      
20 B2g 3019 2896 0.00      
21 B2g 1035 993 0.00      
22 B2g 970 930 0.00      
23 B2g 416 399 0.00      
24 B2u 3181 3051 65.56      
25 B2u 1729 1658 6.84      
26 B2u 1394 1337 0.44      
27 B2u 1180 1132 0.21      
28 B2u 963 923 0.24      
29 B3g 1226 1176 0.00      
30 B3g 732 703 0.00      
31 B3u 3158 3030 16.45      
32 B3u 3008 2886 82.82      
33 B3u 1469 1409 9.94      
34 B3u 1448 1389 0.56      
35 B3u 981 941 0.47      
36 B3u 910 872 13.72      

Unscaled Zero Point Vibrational Energy (zpe) 26939.8 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 25840.7 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 mPW1PW91/cc-pVTZ
ABC
0.17425 0.16532 0.08750

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.489 0.000 0.000
C2 -1.489 0.000 0.000
C3 -0.663 1.245 0.000
C4 0.663 1.245 0.000
C5 -0.663 -1.245 0.000
C6 0.663 -1.245 0.000
H7 1.197 -2.189 0.000
H8 -1.197 -2.189 0.000
H9 1.197 2.189 0.000
H10 -1.197 2.189 0.000
H11 2.162 0.000 0.867
H12 -2.162 0.000 0.867
H13 2.162 0.000 -0.867
H14 -2.162 0.000 -0.867

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C12.97892.48631.49442.48631.49442.20853.46502.20853.46501.09733.75291.09733.7529
C22.97891.49442.48631.49442.48633.46502.20853.46502.20853.75291.09733.75291.0973
C32.48631.49441.32552.48992.82073.90503.47522.08521.08453.20632.13293.20632.1329
C41.49442.48631.32552.82072.48993.47523.90501.08452.08522.13293.20632.13293.2063
C52.48631.49442.48992.82071.32552.08521.08453.90503.47523.20632.13293.20632.1329
C61.49442.48632.82072.48991.32551.08452.08523.47523.90502.13293.20632.13293.2063
H72.20853.46503.90503.47522.08521.08452.39314.37804.98942.54474.10162.54474.1016
H83.46502.20853.47523.90501.08452.08522.39314.98944.37804.10162.54474.10162.5447
H92.20853.46502.08521.08453.90503.47524.37804.98942.39312.54474.10162.54474.1016
H103.46502.20851.08452.08523.47523.90504.98944.37802.39314.10162.54474.10162.5447
H111.09733.75293.20632.13293.20632.13292.54474.10162.54474.10164.32391.73404.6587
H123.75291.09732.13293.20632.13293.20634.10162.54474.10162.54474.32394.65871.7340
H131.09733.75293.20632.13293.20632.13292.54474.10162.54474.10161.73404.65874.3239
H143.75291.09732.13293.20632.13293.20634.10162.54474.10162.54474.65871.73404.3239

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 123.586 C1 C4 H9 116.928
C1 C6 C5 123.586 C1 C6 H7 116.928
C2 C3 C4 123.586 C2 C3 H10 116.928
C2 C5 C6 123.586 C2 C5 H8 116.928
C3 C2 C5 112.828 C3 C2 H12 109.819
C3 C2 H14 109.819 C3 C4 H9 119.486
C4 C1 C6 112.828 C4 C1 H11 109.819
C4 C1 H13 109.819 C4 C3 H10 119.486
C5 C2 H12 109.819 C5 C2 H14 109.819
C5 C6 H7 119.486 C6 C1 H11 109.819
C6 C1 H13 109.819 C6 C5 H8 119.486
H11 C1 H13 104.399 H12 C2 H14 104.399
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.070     0.000
2 C -0.070     0.000
3 C -0.146     0.000
4 C -0.146     0.000
5 C -0.146     0.000
6 C -0.146     0.000
7 H 0.101     0.000
8 H 0.101     0.000
9 H 0.101     0.000
10 H 0.101     0.000
11 H 0.080     0.000
12 H 0.080     0.000
13 H 0.080     0.000
14 H 0.080     0.000


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 -33.247 0.000 0.000
y 0.000 -35.617 0.000
z 0.000 0.000 -39.000
Traceless
 xyz
x 4.061 0.000 0.000
y 0.000 0.507 0.000
z 0.000 0.000 -4.567
Polar
3z2-r2-9.135
x2-y22.369
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.605 0.000 0.000
y 0.000 9.567 0.000
z 0.000 0.000 6.358


<r2> (average value of r2) Å2
<r2> 143.419
(<r2>)1/2 11.976