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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-232.262503
Energy at 298.15K-232.270988
HF Energy-231.755848
Nuclear repulsion energy213.907848
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3182 3064 1.93      
2 A1 3052 2939 48.22      
3 A1 3003 2892 16.18      
4 A1 1683 1621 0.03      
5 A1 1520 1464 0.30      
6 A1 1245 1199 0.01      
7 A1 1024 986 25.18      
8 A1 839 808 0.01      
9 A1 664 640 98.92      
10 A1 522 503 4.45      
11 A1 84 80 0.32      
12 A2 3145 3029 0.00      
13 A2 1398 1346 0.00      
14 A2 1391 1340 0.00      
15 A2 1222 1177 0.00      
16 A2 1077 1037 0.00      
17 A2 948 913 0.00      
18 A2 577 555 0.00      
19 A2 375 361 0.00      
20 B1 3177 3060 114.89      
21 B1 1648 1587 5.16      
22 B1 1392 1340 3.38      
23 B1 1223 1178 0.01      
24 B1 1205 1160 0.42      
25 B1 936 902 1.54      
26 B1 704 678 2.92      
27 B2 3145 3029 21.20      
28 B2 3051 2939 20.55      
29 B2 3005 2894 73.57      
30 B2 1523 1467 10.51      
31 B2 1439 1386 1.17      
32 B2 1038 1000 3.05      
33 B2 970 935 0.04      
34 B2 918 884 0.23      
35 B2 887 854 10.04      
36 B2 382 367 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 26796.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 25807.7 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 MP2/LANL2DZ
ABC
0.16536 0.15695 0.08394

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.520 0.133
C2 0.000 -1.520 0.133
C3 1.274 -0.685 -0.075
C4 1.274 0.685 -0.075
C5 -1.274 -0.685 -0.075
C6 -1.274 0.685 -0.075
H7 -2.213 1.229 -0.237
H8 -2.213 -1.229 -0.237
H9 2.213 1.229 -0.237
H10 2.213 -1.229 -0.237
H11 0.000 2.375 -0.572
H12 0.000 -2.375 -0.572
H13 0.000 1.958 1.154
H14 0.000 -1.958 1.154

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.03982.55501.53772.55501.53772.26273.54892.26273.54891.10813.95811.11073.6244
C23.03981.53772.55501.53772.55503.54892.26273.54892.26273.95811.10813.62441.1107
C32.55501.53771.36962.54842.89323.98173.53352.13841.09763.35152.17413.18082.1804
C41.53772.55501.36962.89322.54843.53353.98171.09762.13842.17413.35152.18043.1808
C52.55501.53772.54842.89321.36962.13841.09763.98173.53353.35152.17413.18082.1804
C61.53772.55502.89322.54841.36961.09762.13843.53353.98172.17413.35152.18043.1808
H72.26273.54893.98173.53352.13841.09762.45904.42675.06382.51464.24302.71354.1220
H83.54892.26273.53353.98171.09762.13842.45905.06384.42674.24302.51464.12202.7135
H92.26273.54892.13841.09763.98173.53354.42675.06382.45902.51464.24302.71354.1220
H103.54892.26271.09762.13843.53353.98175.06384.42672.45904.24302.51464.12202.7135
H111.10813.95813.35152.17413.35152.17412.51464.24302.51464.24304.74991.77534.6637
H123.95811.10812.17413.35152.17413.35154.24302.51464.24302.51464.74994.66371.7753
H131.11073.62443.18082.18043.18082.18042.71354.12202.71354.12201.77534.66373.9156
H143.62441.11072.18043.18082.18043.18084.12202.71354.12202.71354.66371.77533.9156

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 122.895 C1 C4 H9 117.351
C1 C6 C5 122.895 C1 C6 H7 117.351
C2 C3 C4 122.895 C2 C3 H10 117.351
C2 C5 C6 122.895 C2 C5 H8 117.351
C3 C2 C5 111.927 C3 C2 H12 109.449
C3 C2 H14 109.787 C3 C4 H9 119.752
C4 C1 C6 111.927 C4 C1 H11 109.449
C4 C1 H13 109.787 C4 C3 H10 119.752
C5 C2 H12 109.449 C5 C2 H14 109.787
C5 C6 H7 119.752 C6 C1 H11 109.449
C6 C1 H13 109.787 C6 C5 H8 119.752
H11 C1 H13 106.281 H12 C2 H14 106.281
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability