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

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-232.653832
Energy at 298.15K-232.662377
HF Energy-231.850698
Nuclear repulsion energy216.698768
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 MP2/cc-pVDZ
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 3217 3064 0.00      
2 Ag 3046 2901 0.00      
3 Ag 1748 1665 0.00      
4 Ag 1463 1394 0.00      
5 Ag 1219 1161 0.00      
6 Ag 879 837 0.00      
7 Ag 533 507 0.00      
8 Au 1211 1153 0.00      
9 Au 984 937 0.00      
10 Au 369 351 0.00      
11 B1g 3192 3041 0.00      
12 B1g 1420 1352 0.00      
13 B1g 1351 1287 0.00      
14 B1g 1065 1014 0.00      
15 B1g 569 542 0.00      
16 B1u 3082 2936 39.38      
17 B1u 991 943 21.74      
18 B1u 631 601 56.88      
19 B1u 101 96 0.82      
20 B2g 3084 2937 0.00      
21 B2g 989 942 0.00      
22 B2g 966 920 0.00      
23 B2g 367 349 0.00      
24 B2u 3216 3063 63.57      
25 B2u 1705 1624 4.97      
26 B2u 1392 1326 0.00      
27 B2u 1167 1112 0.02      
28 B2u 967 921 0.14      
29 B3g 1221 1163 0.00      
30 B3g 723 688 0.00      
31 B3u 3192 3041 12.15      
32 B3u 3048 2903 74.26      
33 B3u 1466 1396 5.60      
34 B3u 1434 1366 0.20      
35 B3u 960 914 0.19      
36 B3u 920 877 9.58      

Unscaled Zero Point Vibrational Energy (zpe) 26942.0 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 25662.2 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 MP2/cc-pVDZ
ABC
0.17128 0.16084 0.08557

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.510 0.000 0.000
C2 -1.510 0.000 0.000
C3 -0.675 1.255 0.000
C4 0.675 1.255 0.000
C5 -0.675 -1.255 0.000
C6 0.675 -1.255 0.000
H7 1.208 -2.213 0.000
H8 -1.208 -2.213 0.000
H9 1.208 2.213 0.000
H10 -1.208 2.213 0.000
H11 2.185 0.000 0.879
H12 -2.185 0.000 0.879
H13 2.185 0.000 -0.879
H14 -2.185 0.000 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.01932.51921.50702.51921.50702.23383.50532.23383.50531.10843.79791.10843.7979
C23.01931.50702.51921.50702.51923.50532.23383.50532.23383.79791.10843.79791.1084
C32.51921.50701.34982.50932.84933.94643.50892.11341.09723.24442.15113.24442.1511
C41.50702.51921.34982.84932.50933.50893.94641.09722.11342.15113.24442.15113.2444
C52.51921.50702.50932.84931.34982.11341.09723.94643.50893.24442.15113.24442.1511
C61.50702.51922.84932.50931.34981.09722.11343.50893.94642.15113.24442.15113.2444
H72.23383.50533.94643.50892.11341.09722.41694.42685.04362.57404.14582.57404.1458
H83.50532.23383.50893.94641.09722.11342.41695.04364.42684.14582.57404.14582.5740
H92.23383.50532.11341.09723.94643.50894.42685.04362.41692.57404.14582.57404.1458
H103.50532.23381.09722.11343.50893.94645.04364.42682.41694.14582.57404.14582.5740
H111.10843.79793.24442.15113.24442.15112.57404.14582.57404.14584.37021.75764.7104
H123.79791.10842.15113.24442.15113.24444.14582.57404.14582.57404.37024.71041.7576
H131.10843.79793.24442.15113.24442.15112.57404.14582.57404.14581.75764.71044.3702
H143.79791.10842.15113.24442.15113.24444.14582.57404.14582.57404.71041.75764.3702

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 123.637 C1 C4 H9 117.269
C1 C6 C5 123.637 C1 C6 H7 117.269
C2 C3 C4 123.637 C2 C3 H10 117.269
C2 C5 C6 123.637 C2 C5 H8 117.269
C3 C2 C5 112.725 C3 C2 H12 109.729
C3 C2 H14 109.729 C3 C4 H9 119.094
C4 C1 C6 112.725 C4 C1 H11 109.729
C4 C1 H13 109.729 C4 C3 H10 119.094
C5 C2 H12 109.729 C5 C2 H14 109.729
C5 C6 H7 119.094 C6 C1 H11 109.729
C6 C1 H13 109.729 C6 C5 H8 119.094
H11 C1 H13 104.908 H12 C2 H14 104.908
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063     0.000
2 C 0.063     0.000
3 C -0.107     0.000
4 C -0.107     0.000
5 C -0.107     0.000
6 C -0.107     0.000
7 H 0.024     0.000
8 H 0.024     0.000
9 H 0.024     0.000
10 H 0.024     0.000
11 H 0.051     0.000
12 H 0.051     0.000
13 H 0.051     0.000
14 H 0.051     0.000


Electric dipole moments


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000