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

using model chemistry: MP2=FULL/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=FULL/6-31G
 hartrees
Energy at 0K-232.279750
Energy at 298.15K-232.288267
HF Energy-231.740311
Nuclear repulsion energy215.536503
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=FULL/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 3187 3028 0.00      
2 Ag 3018 2867 0.00      
3 Ag 1730 1644 0.00      
4 Ag 1561 1483 0.00      
5 Ag 1278 1214 0.00      
6 Ag 859 816 0.00      
7 Ag 554 527 0.00      
8 Au 1241 1179 0.00      
9 Au 986 937 0.00      
10 Au 369 350 0.00      
11 B1g 3157 2999 0.00      
12 B1g 1439 1367 0.00      
13 B1g 1408 1338 0.00      
14 B1g 1092 1038 0.00      
15 B1g 588 559 0.00      
16 B1u 3041 2889 60.10      
17 B1u 1056 1004 19.84      
18 B1u 653 621 72.16      
19 B1u 49 46 0.53      
20 B2g 3041 2889 0.00      
21 B2g 1047 995 0.00      
22 B2g 976 928 0.00      
23 B2g 364 346 0.00      
24 B2u 3183 3024 98.52      
25 B2u 1694 1609 2.75      
26 B2u 1416 1346 0.69      
27 B2u 1230 1168 0.14      
28 B2u 957 909 0.29      
29 B3g 1250 1187 0.00      
30 B3g 737 700 0.00      
31 B3u 3158 3000 21.52      
32 B3u 3019 2869 78.22      
33 B3u 1567 1489 3.21      
34 B3u 1479 1405 0.02      
35 B3u 997 947 0.37      
36 B3u 907 861 7.29      

Unscaled Zero Point Vibrational Energy (zpe) 27143.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 25788.8 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=FULL/6-31G
ABC
0.16898 0.15895 0.08446

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.522 0.000 0.000
C2 -1.522 0.000 0.000
C3 -0.677 1.265 0.000
C4 0.677 1.265 0.000
C5 -0.677 -1.265 0.000
C6 0.677 -1.265 0.000
H7 1.217 -2.215 0.000
H8 -1.217 -2.215 0.000
H9 1.217 2.215 0.000
H10 -1.217 2.215 0.000
H11 2.193 0.000 0.878
H12 -2.193 0.000 0.878
H13 2.193 0.000 -0.878
H14 -2.193 0.000 -0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.04382.53701.52162.53701.52162.23633.52272.23633.52271.10523.81721.10523.8172
C23.04381.52162.53701.52162.53703.52272.23633.52272.23633.81721.10523.81721.1052
C32.53701.52161.35402.53092.87033.96273.52252.11881.09273.25712.16113.25712.1611
C41.52162.53701.35402.87032.53093.52253.96271.09272.11882.16113.25712.16113.2571
C52.53701.52162.53092.87031.35402.11881.09273.96273.52253.25712.16113.25712.1611
C61.52162.53702.87032.53091.35401.09272.11883.52253.96272.16113.25712.16113.2571
H72.23633.52273.96273.52252.11881.09272.43394.43085.05522.57524.16002.57524.1600
H83.52272.23633.52253.96271.09272.11882.43395.05524.43084.16002.57524.16002.5752
H92.23633.52272.11881.09273.96273.52254.43085.05522.43392.57524.16002.57524.1600
H103.52272.23631.09272.11883.52253.96275.05524.43082.43394.16002.57524.16002.5752
H111.10523.81723.25712.16113.25712.16112.57524.16002.57524.16004.38571.75664.7244
H123.81721.10522.16113.25712.16113.25714.16002.57524.16002.57524.38574.72441.7566
H131.10523.81723.25712.16113.25712.16112.57524.16002.57524.16001.75664.72444.3857
H143.81721.10522.16113.25712.16113.25714.16002.57524.16002.57524.72441.75664.3857

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 123.730 C1 C4 H9 116.655
C1 C6 C5 123.730 C1 C6 H7 116.655
C2 C3 C4 123.730 C2 C3 H10 116.655
C2 C5 C6 123.730 C2 C5 H8 116.655
C3 C2 C5 112.539 C3 C2 H12 109.699
C3 C2 H14 109.699 C3 C4 H9 119.614
C4 C1 C6 112.539 C4 C1 H11 109.699
C4 C1 H13 109.699 C4 C3 H10 119.614
C5 C2 H12 109.699 C5 C2 H14 109.699
C5 C6 H7 119.614 C6 C1 H11 109.699
C6 C1 H13 109.699 C6 C5 H8 119.614
H11 C1 H13 105.248 H12 C2 H14 105.248
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability