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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-233.285667
Energy at 298.15K-233.294123
HF Energy-233.285667
Nuclear repulsion energy216.040129
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 BLYP/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 3087 3062 0.00      
2 Ag 2900 2877 0.00      
3 Ag 1706 1692 0.00      
4 Ag 1459 1447 0.00      
5 Ag 1206 1196 0.00      
6 Ag 832 826 0.00      
7 Ag 529 525 0.00      
8 Au 1185 1176 0.00      
9 Au 959 951 0.00      
10 Au 369 366 0.00      
11 B1g 3063 3038 0.00      
12 B1g 1367 1356 0.00      
13 B1g 1339 1328 0.00      
14 B1g 1020 1012 0.00      
15 B1g 564 559 0.00      
16 B1u 2902 2879 69.72      
17 B1u 972 964 14.44      
18 B1u 617 612 48.07      
19 B1u 122 121 0.93      
20 B2g 2903 2880 0.00      
21 B2g 977 970 0.00      
22 B2g 951 943 0.00      
23 B2g 392 389 0.00      
24 B2u 3085 3060 107.14      
25 B2u 1662 1649 7.80      
26 B2u 1352 1341 0.67      
27 B2u 1158 1148 0.02      
28 B2u 920 913 0.01      
29 B3g 1196 1187 0.00      
30 B3g 699 693 0.00      
31 B3u 3063 3038 26.21      
32 B3u 2901 2878 115.94      
33 B3u 1464 1452 1.54      
34 B3u 1416 1404 0.29      
35 B3u 947 939 0.14      
36 B3u 867 860 8.48      

Unscaled Zero Point Vibrational Energy (zpe) 26074.9 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 25863.7 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 BLYP/6-31G*
ABC
0.16927 0.16051 0.08496

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.515 0.000 0.000
C2 -1.515 0.000 0.000
C3 -0.673 1.264 0.000
C4 0.673 1.264 0.000
C5 -0.673 -1.264 0.000
C6 0.673 -1.264 0.000
H7 1.219 -2.215 0.000
H8 -1.219 -2.215 0.000
H9 1.219 2.215 0.000
H10 -1.219 2.215 0.000
H11 2.195 0.000 0.876
H12 -2.195 0.000 0.876
H13 2.195 0.000 -0.876
H14 -2.195 0.000 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.02972.52681.51872.52681.51872.23473.51882.23473.51881.10963.81231.10963.8123
C23.02971.51872.52681.51872.52683.51882.23473.51882.23473.81231.10963.81231.1096
C32.52681.51871.34622.52822.86433.96053.52182.11781.09663.25482.16413.25482.1641
C41.51872.52681.34622.86432.52823.52183.96051.09662.11782.16413.25482.16413.2548
C52.52681.51872.52822.86431.34622.11781.09663.96053.52183.25482.16413.25482.1641
C61.51872.52682.86432.52821.34621.09662.11783.52183.96052.16413.25482.16413.2548
H72.23473.51883.96053.52182.11781.09662.43854.43015.05692.57444.16342.57444.1634
H83.51882.23473.52183.96051.09662.11782.43855.05694.43014.16342.57444.16342.5744
H92.23473.51882.11781.09663.96053.52184.43015.05692.43852.57444.16342.57444.1634
H103.51882.23471.09662.11783.52183.96055.05694.43012.43854.16342.57444.16342.5744
H111.10963.81233.25482.16413.25482.16412.57444.16342.57444.16344.39071.75294.7277
H123.81231.10962.16413.25482.16413.25484.16342.57444.16342.57444.39074.72771.7529
H131.10963.81233.25482.16413.25482.16412.57444.16342.57444.16341.75294.72774.3907
H143.81231.10962.16413.25482.16413.25484.16342.57444.16342.57444.72771.75294.3907

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 123.659 C1 C4 H9 116.471
C1 C6 C5 123.659 C1 C6 H7 116.471
C2 C3 C4 123.659 C2 C3 H10 116.471
C2 C5 C6 123.659 C2 C5 H8 116.471
C3 C2 C5 112.682 C3 C2 H12 109.871
C3 C2 H14 109.871 C3 C4 H9 119.870
C4 C1 C6 112.682 C4 C1 H11 109.871
C4 C1 H13 109.871 C4 C3 H10 119.870
C5 C2 H12 109.871 C5 C2 H14 109.871
C5 C6 H7 119.870 C6 C1 H11 109.871
C6 C1 H13 109.871 C6 C5 H8 119.870
H11 C1 H13 104.347 H12 C2 H14 104.347
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.310      
2 C -0.310      
3 C -0.073      
4 C -0.073      
5 C -0.073      
6 C -0.073      
7 H 0.094      
8 H 0.094      
9 H 0.094      
10 H 0.094      
11 H 0.134      
12 H 0.134      
13 H 0.134      
14 H 0.134      


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 -33.568 0.000 0.000
y 0.000 -35.559 0.000
z 0.000 0.000 -38.572
Traceless
 xyz
x 3.498 0.000 0.000
y 0.000 0.511 0.000
z 0.000 0.000 -4.009
Polar
3z2-r2-8.018
x2-y21.991
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.127 0.000 0.000
y 0.000 8.931 0.000
z 0.000 0.000 5.079


<r2> (average value of r2) Å2
<r2> 146.945
(<r2>)1/2 12.122