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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-232.655453
Energy at 298.15K-232.663979
HF Energy-231.845661
Nuclear repulsion energy218.099408
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 MP2/6-31G**
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 3257 3050 0.00      
2 Ag 3084 2888 0.00      
3 Ag 1773 1660 0.00      
4 Ag 1530 1433 0.00      
5 Ag 1254 1174 0.00      
6 Ag 884 828 0.00      
7 Ag 544 509 0.00      
8 Au 1238 1159 0.00      
9 Au 987 924 0.00      
10 Au 366 343 0.00      
11 B1g 3234 3028 0.00      
12 B1g 1446 1354 0.00      
13 B1g 1397 1308 0.00      
14 B1g 1082 1014 0.00      
15 B1g 579 542 0.00      
16 B1u 3116 2918 45.54      
17 B1u 1025 960 20.41      
18 B1u 639 599 54.58      
19 B1u 80 75 0.66      
20 B2g 3117 2919 0.00      
21 B2g 1008 944 0.00      
22 B2g 982 920 0.00      
23 B2g 349 326 0.00      
24 B2u 3256 3049 71.91      
25 B2u 1729 1619 4.55      
26 B2u 1428 1337 0.03      
27 B2u 1202 1126 0.05      
28 B2u 976 914 0.04      
29 B3g 1247 1168 0.00      
30 B3g 731 685 0.00      
31 B3u 3234 3028 12.54      
32 B3u 3086 2890 73.36      
33 B3u 1532 1435 2.52      
34 B3u 1473 1380 0.00      
35 B3u 977 915 0.49      
36 B3u 930 871 7.09      

Unscaled Zero Point Vibrational Energy (zpe) 27384.1 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 25645.2 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 MP2/6-31G**
ABC
0.17307 0.16299 0.08656

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.501 0.000 0.000
C2 -1.501 0.000 0.000
C3 -0.670 1.249 0.000
C4 0.670 1.249 0.000
C5 -0.670 -1.249 0.000
C6 0.670 -1.249 0.000
H7 1.201 -2.195 0.000
H8 -1.201 -2.195 0.000
H9 1.201 2.195 0.000
H10 -1.201 2.195 0.000
H11 2.169 0.000 0.869
H12 -2.169 0.000 0.869
H13 2.169 0.000 -0.869
H14 -2.169 0.000 -0.869

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.00192.50471.50062.50471.50062.21543.48082.21543.48081.09633.77161.09633.7716
C23.00191.50062.50471.50062.50473.48082.21543.48082.21543.77161.09633.77161.0963
C32.50471.50061.33982.49892.83543.91953.48512.09581.08433.22132.13643.22132.1364
C41.50062.50471.33982.83542.49893.48513.91951.08432.09582.13643.22132.13643.2213
C52.50471.50062.49892.83541.33982.09581.08433.91953.48513.22132.13643.22132.1364
C61.50062.50472.83542.49891.33981.08432.09583.48513.91952.13643.22132.13643.2213
H72.21543.48083.91953.48512.09581.08432.40114.38995.00372.55174.11442.55174.1144
H83.48082.21543.48513.91951.08432.09582.40115.00374.38994.11442.55174.11442.5517
H92.21543.48082.09581.08433.91953.48514.38995.00372.40112.55174.11442.55174.1144
H103.48082.21541.08432.09583.48513.91955.00374.38992.40114.11442.55174.11442.5517
H111.09633.77163.22132.13643.22132.13642.55174.11442.55174.11444.33831.73814.6736
H123.77161.09632.13643.22132.13643.22134.11442.55174.11442.55174.33834.67361.7381
H131.09633.77163.22132.13643.22132.13642.55174.11442.55174.11441.73814.67364.3383
H143.77161.09632.13643.22132.13643.22134.11442.55174.11442.55174.67361.73814.3383

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 123.629 C1 C4 H9 117.066
C1 C6 C5 123.629 C1 C6 H7 117.066
C2 C3 C4 123.629 C2 C3 H10 117.066
C2 C5 C6 123.629 C2 C5 H8 117.066
C3 C2 C5 112.742 C3 C2 H12 109.730
C3 C2 H14 109.730 C3 C4 H9 119.304
C4 C1 C6 112.742 C4 C1 H11 109.730
C4 C1 H13 109.730 C4 C3 H10 119.304
C5 C2 H12 109.730 C5 C2 H14 109.730
C5 C6 H7 119.304 C6 C1 H11 109.730
C6 C1 H13 109.730 C6 C5 H8 119.304
H11 C1 H13 104.885 H12 C2 H14 104.885
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability