return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-233.279929
Energy at 298.15K-233.288356
HF Energy-233.279929
Nuclear repulsion energy216.859060
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 B97D3/6-31+G**
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 3118 3064 0.00      
2 Ag 2933 2882 0.00      
3 Ag 1710 1680 0.00      
4 Ag 1437 1413 0.00      
5 Ag 1205 1184 0.00      
6 Ag 842 828 0.00      
7 Ag 532 523 0.00      
8 Au 1186 1165 0.00      
9 Au 960 944 0.00      
10 Au 369 362 0.00      
11 B1g 3094 3040 0.00      
12 B1g 1372 1349 0.00      
13 B1g 1333 1310 0.00      
14 B1g 1026 1008 0.00      
15 B1g 568 558 0.00      
16 B1u 2943 2893 46.42      
17 B1u 961 944 31.39      
18 B1u 608 597 77.57      
19 B1u 92 91 1.71      
20 B2g 2945 2895 0.00      
21 B2g 974 957 0.00      
22 B2g 938 922 0.00      
23 B2g 384 377 0.00      
24 B2u 3116 3062 104.84      
25 B2u 1662 1634 14.73      
26 B2u 1352 1329 0.00      
27 B2u 1158 1139 0.00      
28 B2u 929 913 0.12      
29 B3g 1195 1174 0.00      
30 B3g 694 682 0.00      
31 B3u 3093 3040 27.90      
32 B3u 2934 2883 119.52      
33 B3u 1441 1417 6.62      
34 B3u 1409 1385 0.00      
35 B3u 949 932 0.31      
36 B3u 876 861 12.26      

Unscaled Zero Point Vibrational Energy (zpe) 26168.8 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 25718.7 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 B97D3/6-31+G**
ABC
0.17069 0.16164 0.08562

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.505 0.000 0.000
C2 -1.505 0.000 0.000
C3 -0.672 1.258 0.000
C4 0.672 1.258 0.000
C5 -0.672 -1.258 0.000
C6 0.672 -1.258 0.000
H7 1.211 -2.209 0.000
H8 -1.211 -2.209 0.000
H9 1.211 2.209 0.000
H10 -1.211 2.209 0.000
H11 2.184 0.000 0.874
H12 -2.184 0.000 0.874
H13 2.184 0.000 -0.874
H14 -2.184 0.000 -0.874

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.01092.51501.50932.51501.50932.22863.50132.22863.50131.10603.79121.10603.7912
C23.01091.50932.51501.50932.51503.50132.22863.50132.22863.79121.10603.79121.1060
C32.51501.50931.34422.51682.85333.94583.50912.10941.09283.24072.15213.24072.1521
C41.50932.51501.34422.85332.51683.50913.94581.09282.10942.15213.24072.15213.2407
C52.51501.50932.51682.85331.34422.10941.09283.94583.50913.24072.15213.24072.1521
C61.50932.51502.85332.51681.34421.09282.10943.50913.94582.15213.24072.15213.2407
H72.22863.50133.94583.50912.10941.09282.42194.41825.03842.56704.14332.56704.1433
H83.50132.22863.50913.94581.09282.10942.42195.03844.41824.14332.56704.14332.5670
H92.22863.50132.10941.09283.94583.50914.41825.03842.42192.56704.14332.56704.1433
H103.50132.22861.09282.10943.50913.94585.03844.41822.42194.14332.56704.14332.5670
H111.10603.79123.24072.15213.24072.15212.56704.14332.56704.14334.36741.74714.7039
H123.79121.10602.15213.24072.15213.24074.14332.56704.14332.56704.36744.70391.7471
H131.10603.79123.24072.15213.24072.15212.56704.14332.56704.14331.74714.70394.3674
H143.79121.10602.15213.24072.15213.24074.14332.56704.14332.56704.70391.74714.3674

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 123.514 C1 C4 H9 116.942
C1 C6 C5 123.514 C1 C6 H7 116.942
C2 C3 C4 123.514 C2 C3 H10 116.942
C2 C5 C6 123.514 C2 C5 H8 116.942
C3 C2 C5 112.972 C3 C2 H12 109.792
C3 C2 H14 109.792 C3 C4 H9 119.544
C4 C1 C6 112.972 C4 C1 H11 109.792
C4 C1 H13 109.792 C4 C3 H10 119.544
C5 C2 H12 109.792 C5 C2 H14 109.792
C5 C6 H7 119.544 C6 C1 H11 109.792
C6 C1 H13 109.792 C6 C5 H8 119.544
H11 C1 H13 104.347 H12 C2 H14 104.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.591      
2 C -0.591      
3 C 0.008      
4 C 0.008      
5 C 0.008      
6 C 0.008      
7 H 0.128      
8 H 0.128      
9 H 0.128      
10 H 0.128      
11 H 0.160      
12 H 0.160      
13 H 0.160      
14 H 0.160      


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 -33.656 0.000 0.000
y 0.000 -36.321 0.000
z 0.000 0.000 -39.859
Traceless
 xyz
x 4.434 0.000 0.000
y 0.000 0.436 0.000
z 0.000 0.000 -4.870
Polar
3z2-r2-9.740
x2-y22.665
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.286 0.000 0.000
y 0.000 9.827 0.000
z 0.000 0.000 7.295


<r2> (average value of r2) Å2
<r2> 146.425
(<r2>)1/2 12.101